A family of gram-negative, coccoid microorganisms, in the order CHLAMYDIALES, pathogenic for vertebrates. Genera include CHLAMYDIA and CHLAMYDOPHILA.
Infections with bacteria of the family CHLAMYDIACEAE.
An order of obligately intracellular, gram-negative bacteria that have the chlamydia-like developmental cycle of replication. This is a two-stage cycle that includes a metabolically inactive infectious form, and a vegetative form that replicates by binary fission. Members of Chlamydiales are disseminated by aerosol or by contact. There are at least six recognized families: CHLAMYDIACEAE, Criblamydiaceae, Parachlamydiaceae, Rhabdochlamydia, Simkaniaceae, and Waddliaceae.
A genus of the family CHLAMYDIACEAE whose species cause a variety of diseases in vertebrates including humans, mice, and swine. Chlamydia species are gram-negative and produce glycogen. The type species is CHLAMYDIA TRACHOMATIS.
A genus of the family CHLAMYDIACEAE comprising gram-negative non CHLAMYDIA TRACHOMATIS-like species infecting vertebrates. Chlamydophila do not produce detectable quantities of glycogen. The type species is CHLAMYDOPHILA PSITTACI.
A species of gram-negative bacteria causing CONJUNCTIVITIS and KERATOCONJUNCTIVITIS in SHEEP and GOATS.
A genus of CHLAMYDOPHILA infecting primarily birds. It contains eight known serovars, some of which infect more than one type of host, including humans.
A mammalian fetus expelled by INDUCED ABORTION or SPONTANEOUS ABORTION.
Infections with viruses of the genus PESTIVIRUS, family FLAVIVIRIDAE.
The species Tursiops truncatus, in the family Delphinidae, characterized by a bottle-shaped beak and slightly hooked broad dorsal fin.
A chronic infection of the CONJUNCTIVA and CORNEA caused by CHLAMYDIA TRACHOMATIS.
One of the short-acting SULFONAMIDES used in combination with PYRIMETHAMINE to treat toxoplasmosis in patients with acquired immunodeficiency syndrome and in newborns with congenital infections.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Type species of CHLAMYDIA causing a variety of ocular and urogenital diseases.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
A DNA amplification technique based upon the ligation of OLIGONUCLEOTIDE PROBES. The probes are designed to exactly match two adjacent sequences of a specific target DNA. The chain reaction is repeated in three steps in the presence of excess probe: (1) heat denaturation of double-stranded DNA, (2) annealing of probes to target DNA, and (3) joining of the probes by thermostable DNA ligase. After the reaction is repeated for 20-30 cycles the production of ligated probe is measured.
A selective increase in the number of copies of a gene coding for a specific protein without a proportional increase in other genes. It occurs naturally via the excision of a copy of the repeating sequence from the chromosome and its extrachromosomal replication in a plasmid, or via the production of an RNA transcript of the entire repeating sequence of ribosomal RNA followed by the reverse transcription of the molecule to produce an additional copy of the original DNA sequence. Laboratory techniques have been introduced for inducing disproportional replication by unequal crossing over, uptake of DNA from lysed cells, or generation of extrachromosomal sequences from rolling circle replication.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Databases containing information about PROTEINS such as AMINO ACID SEQUENCE; PROTEIN CONFORMATION; and other properties.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
The portion of an interactive computer program that issues messages to and receives commands from a user.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The medical science concerned with the prevention, diagnosis, and treatment of diseases in animals.
Inflammation of a TESTIS. It has many features of EPIDIDYMITIS, such as swollen SCROTUM; PAIN; PYURIA; and FEVER. It is usually related to infections in the URINARY TRACT, which likely spread to the EPIDIDYMIS and then the TESTIS through either the VAS DEFERENS or the lymphatics of the SPERMATIC CORD.
Inflammation of the EPIDIDYMIS. Its clinical features include enlarged epididymis, a swollen SCROTUM; PAIN; PYURIA; and FEVER. It is usually related to infections in the URINARY TRACT, which likely spread to the EPIDIDYMIS through either the VAS DEFERENS or the lymphatics of the SPERMATIC CORD.
A phylum of gram-negative bacteria consisting of cells bounded by a plasma membrane. Its organisms differ from other bacteria in that they are devoid of cell walls. This phylum was formerly the class Mollicutes. Mollicutes is now the sole class in the phylum Tenericutes.
The etiological agent of contagious pleuropneumonia (PLEUROPNEUMONIA, CONTAGIOUS) of cattle and goats.
A pleuropneumonia of cattle and goats caused by species of MYCOPLASMA.
A family of gram-negative, nonhelical, arthropod-associated bacteria in the order Entomoplasmatales. It is comprised of two genera: Entomoplasma and Mesoplasma.
A common inhabitant of the vagina and cervix and a potential human pathogen, causing infections of the male and female reproductive tracts. It has also been associated with respiratory disease and pharyngitis. (From Dorland, 28th ed)
A disease characterized by chronic hemolytic anemia, episodic painful crises, and pathologic involvement of many organs. It is the clinical expression of homozygosity for hemoglobin S.
A non-invasive technique using ultrasound for the measurement of cerebrovascular hemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum.
The major component of hemoglobin in the fetus. This HEMOGLOBIN has two alpha and two gamma polypeptide subunits in comparison to normal adult hemoglobin, which has two alpha and two beta polypeptide subunits. Fetal hemoglobin concentrations can be elevated (usually above 0.5%) in children and adults affected by LEUKEMIA and several types of ANEMIA.
Respiratory syndrome characterized by the appearance of a new pulmonary infiltrate on chest x-ray, accompanied by symptoms of fever, cough, chest pain, tachypnea, or DYSPNEA, often seen in patients with SICKLE CELL ANEMIA. Multiple factors (e.g., infection, and pulmonary FAT EMBOLISM) may contribute to the development of the syndrome.
An abnormal hemoglobin resulting from the substitution of valine for glutamic acid at position 6 of the beta chain of the globin moiety. The heterozygous state results in sickle cell trait, the homozygous in sickle cell anemia.
The condition of being heterozygous for hemoglobin S.
Agents used to prevent or reverse the pathological events leading to sickling of erythrocytes in sickle cell conditions.
Acute infectious disease characterized by primary invasion of the urogenital tract. The etiologic agent, NEISSERIA GONORRHOEAE, was isolated by Neisser in 1879.
Infections with bacteria of the genus CHLAMYDIA.
Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template.
The middle portion of the pharynx that lies posterior to the mouth, inferior to the SOFT PALATE, and superior to the base of the tongue and EPIGLOTTIS. It has a digestive function as food passes from the mouth into the oropharynx before entering ESOPHAGUS.
Established cell cultures that have the potential to propagate indefinitely.
A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by the development of one or more small fluid-filled vesicles with a raised erythematous base on the skin or mucous membrane. It occurs as a primary infection or recurs due to a reactivation of a latent infection. (Dorland, 27th ed.)
A species of gram-negative, aerobic bacteria primarily found in purulent venereal discharges. It is the causative agent of GONORRHEA.

Molecular evidence for the existence of additional members of the order Chlamydiales. (1/47)

Respiratory tract infections in man may be caused by several members of the genus Chlamydia and also by two Chlamydia-like strains, 'Simkania negevensis' (Z-agent) and 'Parachlamydia acanthamoebae' (Bng). To facilitate diagnostic procedures a PCR assay able to detect all known Chlamydiaceae sequences in one reaction was developed. For this purpose, primers were selected to amplify a fragment of the 16S rRNA gene. Characterization of the amplified fragments was done by hybridization with specific probes and by sequencing. PCR assays were carried out using DNA isolated from nose/throat specimens or from peripheral blood mononuclear cells of patients with respiratory tract infections, and from vessel wall specimens of abdominal aneurysms. Six of the 42 nose/throat swab specimens analysed yielded strong bands and one yielded a faint band. Three of these bands were identified as Chlamydia pneumoniae and one as Chlamydia trachomatis by sequencing. Analysis of the three other bands yielded two different new sequences. DNA isolated from peripheral blood mononuclear cells of one patient yielded a third new sequence. DNA isolated from peripheral blood mononuclear cells of four healthy controls was negative. One of the abdominal aneurysm specimens also yielded a strong band. Sequencing revealed a fourth new sequence. All negative controls included during specimen processing and PCR analysis remained negative. The typical secondary structure of microbial 16S genes was present in all four new sequences indicating the validity of the sequence data. All four new sequences were distinct from other bacteria and clustered together with known Chlamydiaceae sequences. Phylogenetic analysis suggested a new lineage, separating the four new sequences, 'S. negevensis' and 'P. acanthamoebae' from the genus Chlamydia with the four known chlamydial species. In conclusion, this study provides evidence for the existence of several new members of the order Chlamydiales. Since the source of the Chlamydia-like strains has not been identified and serological and/or molecular cross-reactivities may be expected, results of identification of infecting recognized organisms should be interpreted cautiously.  (+info)

Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. (2/47)

The current taxonomic classification of Chlamydia is based on limited phenotypic, morphologic and genetic criteria. This classification does not take into account recent analysis of the ribosomal operon or recently identified obligately intracellular organisms that have a chlamydia-like developmental cycle of replication. Neither does it provide a systematic rationale for identifying new strains. In this study, phylogenetic analyses of the 16S and 23S rRNA genes are presented with corroborating genetic and phenotypic information to show that the order Chlamydiales contains at least four distinct groups at the family level and that within the Chlamydiaceae are two distinct lineages which branch into nine separate clusters. In this report a reclassification of the order Chlamydiales and its current taxa is proposed. This proposal retains currently known strains with > 90% 16S rRNA identity in the family Chlamydiaceae and separates other chlamydia-like organisms that have 80-90% 16S rRNA relatedness to the Chlamydiaceae into new families. Chlamydiae that were previously described as 'Candidatus Parachlamydia acanthamoebae' Amann, Springer, Schonhuber, Ludwig, Schmid, Muller and Michel 1997, become members of Parachlamydiaceae fam. nov., Parachlamydia acanthamoebae gen. nov., sp. now. 'Simkania' strain Z becomes the founding member of Simkaniaceae fam. nov., Simkania negevensis gen. nov., sp. nov. The fourth group, which includes strain WSU 86-1044, was left unnamed. The Chlamydiaceae, which currently has only the genus Chlamydia, is divided into two genera, Chlamydia and Chlamydophila gen. nov. Two new species, Chlamydia muridarum sp. nov. and Chlamydia suis sp. nov., join Chlamydia trachomatis in the emended genus Chlamydia. Chlamydophila gen. nov. assimilates the current species, Chlamydia pecorum, Chlamydia pneumoniae and Chlamydia psittaci, to form Chlamydophila pecorum comb. nov., Chlamydophila pneumoniae comb. nov. and Chlamydophila psittaci comb. nov. Three new Chlamydophila species are derived from Chlamydia psittaci: Chlamydophila abortus gen. nov., sp. nov., Chlamydophila caviae gen. nov., sp. nov. and Chlamydophila felis gen. nov., sp. nov. Emended descriptions for the order Chlamydiales and for the family Chlamydiaceae are provided. These families, genera and species are readily distinguished by analysis of signature sequences in the 16S and 23S ribosomal genes.  (+info)

Identification of nine species of the Chlamydiaceae using PCR-RFLP. (3/47)

The family Chlamydiaceae contains two genera and nine species. Rapid and easy identification of these species is essential for taxonomic, epidemiological and clinical determinations. Currently, DNA sequence analysis is the only accepted method that decisively distinguishes all nine species. In this study, a simple and rapid PCR-RFLP procedure was developed by which laboratory-cultured chlamydial specimens could be identified. To accomplish this, conserved oligonucleotide primers and restriction sites were deduced from 16S and 23S rRNA sequence data from > 50 chlamydial strains representing all nine species. DNA from 25 previously characterized chlamydial strains were tested with these primers and restriction enzymes. All nine chlamydial species were reliably distinguished in the tests. The procedure was optimized by adjusting the annealing temperature using both a standard and a heat-activated DNA polymerase to reduce mismatch PCR amplification of mycoplasmas and other bacteria. The result was that a PCR method for species identification of chlamydial isolates and for distinguishing mycoplasmas and chlamydiae was created. This method can be used to rapidly identify known species of the family Chlamydiaceae.  (+info)

Simkania negevensis strain ZT: growth, antigenic and genome characteristics. (4/47)

Simkania negevensis is the type species of Simkaniaceae, a recently proposed family in the order Chlamydiales. In the current study, growth, antigenic and genomic characteristics of this intracellular bacterium were investigated and compared to those of members of the family Chlamydiaceae. Growth of the organism, as assessed by infectivity assays, reached a plateau in 2-3 d although by light microscopy the cytopathic effect on the host cells increased for 12 or more days after infection. S. negevensis growth was unaffected by sulfadiazine. Cells infected by S. negevensis strain ZT were not recognized by either of two monoclonal antibodies specific for Chlamydiaceae LPS and several specific Chlamydiaceae ompA primers were unable to PCR amplify a S. negevensis gene. The S. negevensis genome contained one copy of the ribosomal operon. The genome size of S. negevensis strain ZT was determined by PFGE to be 1.7 Mbp, and the G + C content was 42.5 mol%. These data, taken together with other published data, are consistent with the proposal that S. negevensis belongs to a distinct family in the order Chlamydiales.  (+info)

'Candidatus Xenohaliotis californiensis', a newly described pathogen of abalone, Haliotis spp., along the west coast of North America. (5/47)

Withering syndrome is a fatal disease of wild and cultured abalone, Haliotis spp., that inhabit the west coast of North America. The aetiological agent of withering syndrome has recently been identified as a member of the family Rickettsiaceae in the order Rickettsiales. Using a combination of morphological, serological, life history and genomic (16S rDNA) characterization, we have identified this bacterium as a unique taxon and propose the provisional status of 'Candidatus Xenohaliotis californiensis'. The Gram-negative, obligate intracellular pleomorphic bacterium is found within membrane-bound vacuoles in the cytoplasm of abalone gastrointestinal epithelial cells. The bacterium is not cultivable on synthetic media or in fish cell lines (e.g. CHSE-214) and may be controlled by tetracyclines (oxytetracycline) but not by chloramphenicol, clarithromycin or sarafloxicin. Phylogenetic analysis based on the 16S rDNA of 'Candidatus Xenohaliotis californiensis' places it in the alpha-subclass of the class Proteobacteria but not to the four recognized subtaxa of the alpha-Proteobacteria (alpha-1, alpha-2, alpha-3 and alpha-4). The bacterium can be detected in tissue squashes stained with propidium iodide, microscopic examination of stained tissue sections, PCR or in situ hybridization. 'Candidatus Xenohaliotis californiensis' can be differentiated from other closely related alpha-Proteobacteria by its unique 16S rDNA sequence.  (+info)

Chlamydophila abortus in a Brown skua (Catharacta antarctica lonnbergi) from a subantarctic island. (6/47)

On Bird Island, South Georgia, a new strain of Chlamydophila abortus was detected in one Brown skua out of 37 specimens from six different seabird species. Phylogenetic analysis of the rnpB and omp1 genes indicated the strain to be more closely related to C. abortus than to 6BC, the type strain of Chlamydophila psittaci.  (+info)

Comparative analyses of secondary gene products of 3-deoxy-D-manno-oct-2-ulosonic acid transferases from Chlamydiaceae in Escherichia coli K-12. (7/47)

The waaA gene encoding the essential, lipopolysaccharide (LPS)-specific 3-deoxy-Dmanno-oct-2-ulosonic acid (Kdo) transferase was inactivated in the chromosome of a heptosyltransferase I and II deficient Escherichia coli K-12 strain by insertion of gene expression cassettes encoding the waaA genes of Chlamydia trachomatis, Chlamydophila pneumoniae or Chlamydophila psittaci. The three chlamydial Kdo transferases were able to complement the knockout mutation without changing the growth or multiplication behaviour. The LPS of the mutants were serologically and structurally characterized in comparison to the LPS of the parent strain using compositional analyses, high performance anion exchange chromatography, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and specific monoclonal antibodies. The data show that chlamydial Kdo transferases can replace in E. coli K-12 the host's Kdo transferase and retain the product specificities described in their natural background. In addition, we unequivocally proved that WaaA from C. psittaci transfers predominantly four Kdo residues to lipid A, forming a branched tetrasaccharide with the structure alpha-Kdo-(2-->8)-[alpha-Kdo-(2-->4)]-alpha-Kdo-(2-->4)-alpha-Kdo.  (+info)

Molecular evolution of the Chlamydiaceae. (8/47)

Phylogenetic analyses of surface antigens and other chlamydial proteins were used to reconstruct the evolution of the Chlamydiaceae. Trees for all five coding genes [the major outer-membrane protein (MOMP), GroEL chaperonin, KDO-transferase, small cysteine-rich lipoprotein and 60 kDa cysteine-rich protein] supported the current organization of the family Chlamydiaceae, which is based on ribosomal, biochemical, serological, ecological and DNA-DNA hybridization data. Genetic distances between some species were quite large, so phylogenies were evaluated for robustness by comparing analyses of both nucleotide and protein sequences using a variety of algorithms (neighbour-joining, maximum-likelihood, maximum-parsimony with bootstrapping, and quartet puzzling). Saturation plots identified areas of the trees in which factors other than relatedness may have determined branch attachments. All nine species were clearly differentiated by distinctness ratios calculated for each gene. The distribution of virulence traits such as host and tissue tropism were mapped onto the consensus phylogeny. Closely related species were no more likely to share virulence characters than were more distantly related species. This phylogenetically disjunct distribution of virulence traits could not be explained by lateral transfer of the genes we studied, since we found no evidence for lateral gene transfer above the species level. One interpretation of this observation is that when chlamydiae gain access to a new niche, such as a new host or tissue, significant adaptation ensues and the virulence phenotype of the new species reflects adaptation to its environment more strongly than it reflects its ancestry.  (+info)

Trachoma is the leading cause of preventable blindness. Commercial assays do not discriminate among all Chlamydiaceae species that might be involved in trachoma. We investigated whether a commercial Micro-ArrayTube could discriminate Chlamydiaceae species in DNA extracted directly from conjunctival samples from 101 trachoma patients in Nepal. To evaluate organism viability, we extracted RNA, reverse transcribed it, and subjected it to quantitative real-time PCR. We found that 71 (70.3%) villagers were infected. ArrayTube sensitivity was 91.7% and specificity was 100% compared with that of real-time PCR. Concordance between genotypes detected by microarray and ompA genotyping was 100%. Species distribution included 54 (76%) single infections with Chlamydia trachomatis, C. psittaci, C. suis, or C. pecorum, and 17 (24%) mixed infections that includied C. pneumoniae. Ocular infections were caused by 5 Chlamydiaceae species. Additional studies of trachoma pathogenesis involving Chlamydiaceae species other
The Chlamydiaceae are a family of bacteria that belongs to the phylum Chlamydiae, order Chlamydiales. All Chlamydiaceae species are Gram-negative and express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously called the genus-specific epitope). Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity. Chlamydiaceae species have varying inclusion morphology, varying extrachromosomal plasmid content, and varying sulfadiazine resistance. The Chlamydiaceae family currently includes two genera and one candidate genus: Chlamydia, Chlamydophila, and candidatus Clavochlamydia. Three species belong to Chlamydia: C. trachomatis, C. muridarum, and C. suis. C. trachomatis has been found only in humans, C. muridarum in hamsters and mice (family Muridae), and C. suis in swine. Chlamydia species produce a small amount of detectable glycogen and have two ribosomal operons. C. trachomatis is the cause of an infection commonly transmitted sexually ...
Amplification primers and methods for specific amplification and detection of a rnpB gene sequence are disclosed. The primer-target binding sequences are useful for amplification and detection of organisms of the Chlamydiaceae family in a variety of amplification and detection reactions.
HinT proteins are found in prokaryotes and eukaryotes and belong to the superfamily of HIT proteins, which are characterized by an histidine-triad sequence motif. While the eukaryotic variants hydrolyze AMP derivates and modulate transcription, the function of prokaryotic HinT proteins is less clearly defined. In Mycoplasma hominis, HinT is concomitantly expressed with the proteins P60 and P80, two domains of a surface exposed membrane complex, and in addition interacts with the P80 moiety. An cluster of hit ABL genes, similar to that of M. hominis was found in M. pulmonis, M. mycoides subspecies mycoides SC, M. mobile and Mesoplasma florum. RT-PCR analyses provided evidence that the P80, P60 and HinT homologues of M. pulmonis were polycistronically organized, suggesting a genetic and physical interaction between the proteins encoded by these genes in these species. While the hit loci of M. pneumoniae and M. genitalium encoded, in addition to HinT, a protein with several transmembrane segments, the hit
Mots-cl s BDSP : Gonococcie, Bact riose, Infection, Bact rie, Pr valence, Programme sant , Diagnostic, Examen s rologique, Evaluation, Th rapeutique, D pistage, Communaut , Australie, Oc anie, Homme, Maladie sexuellement transmissible, Pr vention, Th rapeutique m dicamenteuse. Mots-cl s Pascal : Gonococcie, Bact riose, Infection, Chlamydia, Chlamydiaceae, Chlamydiales, Bact rie, Pr valence, Programme sanitaire, Diagnostic, Etude transversale, R action cha ne polym rase, S rologie, Evaluation, Traitement, Aborig ne, Crit re ge, D pistage, Communaut , Australie, Oc anie, Homme, Maladie sexuellement transmissible, Organisation sant , Pr vention, Biologie mol culaire, Chimioth rapie. Mots-cl s Pascal anglais : Gonococcal infection, Bacteriosis, Infection, Chlamydia, Chlamydiaceae, Chlamydiales, Bacteria, Prevalence, Sanitary program, Diagnosis, Cross sectional study, Polymerase chain reaction, Serology, Evaluation, Treatment, Aboriginal, Age criterion, Medical screening, Community, Australia, ...
Recent taxonomic analysis using the 16S and 23S rRNA genes have found that the order Chlamydiales contains at least four distinct groups at the family level and that within the order Chlamydiaceae are two distinct lineages. Chlamydiae also share a group-specific lipopolysaccharide (LPS) antigen and utilize host adenosine triphosphate for the synthesis of chlamydial protein. Beatty and coworkers demonstrated that the addition of 0.2 ng/ml of IFN-γ inhibited intracellular growth of Chlamydia trachomatis in HeLa cells by induction of the indoleamine 2,3- dioxygenase, leading to a persistent state. The development of large aberrant reticulate body (RB) forms combined with the absence of elementary bodies (EBs) was characteristic of persistent C. trachomatis infection. C. pneumoniae is a common human respiratory pathogen, affecting all ages with a worldwide distribution. While C. pneumoniae appears to be clearly associated with asthma exacerbations, it has also been hypothesized to have a role in asthma
As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards. The RCSB PDB also provides a variety of tools and resources. Users can perform simple and advanced searches based on annotations relating to sequence, structure and function. These molecules are visualized, downloaded, and analyzed by users who range from students to specialized scientists.
Lineage: cellular organisms; Bacteria; PVC group; Chlamydiae; Chlamydiia; Chlamydiales; Chlamydiaceae; Chlamydia/Chlamydophila group; Chlamydia; Chlamydia ...
Lineage: cellular organisms; Bacteria; PVC group; Chlamydiae; Chlamydiia; Chlamydiales; Chlamydiaceae; Chlamydia/Chlamydophila group; Chlamydia; Chlamydia ...
Chlamydiaceae are Gram-negative obligate intracellular bacteria. They are responsible for a broad range of diseases in animals and humans. In pigs, Chlamydia suis, Chlamydia abortus, Chlamydia pecorum and Chlamydia psittaci have been isolated. Chlamydiaceae infections in pigs are associated with different pathologies such as conjunctivitis, pneumonia, pericarditis, polyarthritis, polyserositis, pseudo-membranous or necrotizing enteritis, periparturient dysgalactiae syndrome, vaginal discharge, return to oestrus, abortion, mummification, delivery of weak piglets, increased perinatal and neonatal mortality and inferior semen quality, orchitis, epididymitis and urethritis in boars. However, Chlamydiaceae are still considered as non-important pathogens because reports of porcine chlamydiosis are rare. Furthermore, Chlamydiaceae infections are often unnoticed because tests for Chlamydiaceae are not routinely performed in all veterinary diagnostic laboratories and Chlamydiaceae are often found in association
Detection of Candidatus Xenohaliotis californiensis (Rickettsiales-like prokaryote) inclusions in tissue squashes of abalone (Haliotis spp.) gastrointestinal epithelium using a nucleic acid ...
Chlamydiae is a unique bacterial evolutionary group that separated from other bacteria approximately a billion years ago.[9][10] The species from this group can be distinguished from all other bacteria by the presence of conserved indels in a number of proteins such as RNA polymerase alpha subunit, Gyrase B, Elongation factor-Tu and Elongation factor-P, and by large numbers of signature proteins that are uniquely present in different chlamydiae species.[11][12] Reports have varied as to whether Chlamydiae is related to Planctomycetales or Spirochaetes.[13][14] Genome sequencing, however, indicates that 11% of the genes in Candidatus Protochlamydia amoebophila UWE25 and 4% in Chlamydiaceae are most similar to chloroplast, plant, and cyanobacterial genes.[10] However, phylogeny and shared presence of conserved indels in proteins such as RNA polymerase Beta subunit and lysyl-tRNA synthetase indicate that Verrucomicrobia are the closest free-living relatives of these parasitic organisms.[15] ...
The phosphoenolpyruvate (PEP)-dependent phosphotransferase system (PTS) is a major mechanism used by bacteria for uptake of carbohydrates, particularly hexoses, hexitols, and disaccharides, where the source of energy is from PEP. The PTS consists of two general components, enzyme I (EI) and histidine phosphocarrier protein (HPr), and of membrane-bound sugar specific permeases (enzymes II). Each enzyme II (EII) complex consists of one or two hydrophobic integral membrane domains (domains C and D) and two hydrophilic domains (domains A and B). EII complexes may exist as distinct proteins or as a single multidomain protein. The PTS catalyzes the uptake of carbohydrates and their conversion into their respective phosphoesters during transport. There are four successive phosphoryl transfers in the PTS. Initial autophosphorylation of EI, using PEP as a substrate, is followed by transfer of the phosphoryl group from EI to HPr. EIIA catalyzes the self-phosphoryl transfer from HPr after which the ...
ID DNAA2_CHLTR Reviewed; 455 AA. AC O84277; DT 01-JUN-2001, integrated into UniProtKB/Swiss-Prot. DT 01-NOV-1998, sequence version 1. DT 25-OCT-2017, entry version 104. DE RecName: Full=Chromosomal replication initiator protein DnaA 2; GN Name=dnaA2; OrderedLocusNames=CT_275; OS Chlamydia trachomatis (strain D/UW-3/Cx). OC Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae; OC Chlamydia/Chlamydophila group; Chlamydia. OX NCBI_TaxID=272561; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=D/UW-3/Cx; RX PubMed=9784136; DOI=10.1126/science.282.5389.754; RA Stephens R.S., Kalman S., Lammel C.J., Fan J., Marathe R., Aravind L., RA Mitchell W.P., Olinger L., Tatusov R.L., Zhao Q., Koonin E.V., RA Davis R.W.; RT Genome sequence of an obligate intracellular pathogen of humans: RT Chlamydia trachomatis.; RL Science 282:754-759(1998). CC -!- FUNCTION: Plays an important role in the initiation and regulation CC of chromosomal replication. Binds to the origin of replication; it CC binds ...
Seroprevalence of IgG antibodies to the chlamydia-like microorganism Simkania Z by ELISA - Volume 122 Issue 1 - M. G. FRIEDMAN, A. GALIL, S. GREENBERG, S. KAHANE
The order Chlamydiales contains at least four distinct family groups: Chlamydiaceae, Simkaniaceae, Waddliaceae and Parachlamydiaceae. Within the family Chlamydiaceae there are two distinct genera: Chlamydia and Chlamydophila. The Chlamydophila genus has seven recognised species, namely Chlamydophila pecorum, Chlamydophila pneumoniae, Chlamydophila psittaci, Chlamydophila abortus, Chlamydophila caviae (formerly Chlamydophila psittaci guinea pig conjunctivitis strain) and Chlamydophila felis[1, 2].. A unique developmental cycle distinguishes Chlamydophila from other intracellular bacteria [3]. The infectious elementary body (EB) and the vegetative reticulate body (RB) are two major developmental forms involved in the cycle. One of the predominant proteins found on the surface of both the EB and RB forms is the major outer membrane protein (MOMP, OmpA). MOMP makes up 60% of the total outer membrane protein [4], and published data have indicated that it is critical for chlamydial infection ...
article{8506862, abstract = {The porcine pathogen Chlamydia suis is widespread in pig farming. Isolation of Chlamydia suis in cell culture is crucial for the generation and characterization of new isolates. However, isolation of Chlamydia suis strains from field samples is fastidious. Therefore, we exploited high-content microscopy to quantify the growth of Chlamydia suis strains in different cell lines. We found that the cell line yielding optimal propagation of Chlamydia suis differed among isolates, and we identified cell lines outperforming those routinely used for chlamydial isolation. We conclude that adaptation of the propagation procedure to the origin of the putative field isolate is highly recommended to improve the recovery rate.}, author = {De Puysseleyr, Leentje and De Puysseleyr, Kristien and Vanrompay, Daisy and De Vos, Winnok}, issn = {1059-910X}, journal = {MICROSCOPY RESEARCH AND TECHNIQUE}, keyword = {Chlamydia,cell culture,high-content microscopy,isolation,swine,GNOTOBIOTIC ...
Definition : Molecular assay reagents intended to identify Chlamydophila pneumoniae, a bacterium of the family Chlamydiaceae, by detecting specific genetic information of the ribosomal ribonucleic acid (rRNA) of the target bacteria. These bacteria may cause respiratory infections and mild atypical pneumonia.. Entry Terms : Chlamydophila pneumoniae Detection/Identification Reagents , Chlamydophila Species Detection/Identification Reagents , Reagents, Molecular Assay, Infection, Bacteria, Chlamydophila pneumoniae, RRNA. UMDC code : 21528 ...
The aims of this study were twofold: (i) to test for possible associations between serological evidence of acute Simkania negevensis (Sn) infection and acute exacerbation of chronic obstructive pulmon
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Chlamydia infection (from the Greek, χλαμύδα meaning cloak) is a common sexually transmitted infection in humans caused by the bacterium Chlamydia trachomatis. The term Chlamydia infection can also refer to infection caused by any species belonging to the bacterial family Chlamydiaceae. C. trachomatis is found only in humans. Chlamydia is a major infectious cause of human genital and eye disease. Chlamydia infection is one of the most common sexually transmitted infections worldwide; it is estimated that about 1 million individuals in the United States are infected with chlamydia. ...
Prosthecobacter fusiformis is morphologically similar to caulobacters; however, it lacks a dimorphic life cycle. To determine the relatedness of the genus Prosthecobacter to dimorphic caulobacters and other prosthecate members of the alpha subgroup of the Proteobacteria (alpha-Proteobacteria), we is …
Chlamydia psittaci is an obligate intracellular bacterium that can cause significant disease among a broad range of hosts. In humans, this organism may cause psittacosis, a respiratory disease that can spread to involve multiple organs, and in rare untreated cases may be fatal. There are ten known genotypes based on sequencing the major outer-membrane protein gene, ompA, of C. psittaci. Each genotype has overlapping host preferences and virulence characteristics. Recent studies have compared C. psittaci among other members of the Chlamydiaceae family and showed that this species frequently switches hosts and has undergone multiple genomic rearrangements. In this study, we sequenced five genomes of C. psittaci strains representing four genotypes, A, B, D and E. Due to the known association of the type III secretion system (T3SS) and polymorphic outer-membrane proteins (Pmps) with host tropism and virulence potential, we performed a comparative analysis of these elements among these five strains ...
F.R. Rurangirwa, P.M. Dilbeck, T.B. Crawford, T.C. McGuire and T.F. McElwain: Analysis of the 16S rRNA gene of micro-organism WSU 86-1044 from an aborted bovine foetus reveals that it is a member of the order Chlamydiales: proposal of Waddliaceae fam. nov., Waddlia chondrophila gen. nov., sp. nov. International Journal for Systematical Bacteriology 49: 577-581 (1999 ...
SWISS-MODEL Repository entry for P94664 (OMCB_CHLCV), Large cysteine-rich periplasmic protein OmcB. Chlamydophila caviae (strain ATCC VR-813 / DSM 19441 / GPIC)(Chlamydia caviae)
In vitro assembly and GTP hydrolysis by bacterial tubulins BtubA and BtubB.s profile, publications, research topics, and co-authors
Background: Tests available for molecular diagnosis of chlamydial infections detect Chlamydiatrachomatis, but do not find other Chlamydia species associated with genital, ophthalmic, cardiovascular, respiratory or neurological diseases. The routine detection of all Chlamydia species would improve the prognosis of infected people and guide therapeutic choices.. Aim: To design and validate a sensitive, specific, reproducible, inexpensive and easy-to-perform assay to quantify most Chlamydia species.. Methods: Primers and probe were selected using the gene coding for the 16S rRNA. The detection limits were assessed for suspensions of Chlamydia trachomatis, Chlamydia psittaci and Chlamydia pneumoniae. The performance of this test was compared with that of two commercial kits (Amplicor-Roche and Artus) on 100 samples obtained from children with trachoma.. Results: The detection capacities for Chlamydia trachomatis of the broad-range real-time polymerase chain reaction (PCR) were similar or slightly ...
Chlamydophila pneumoniae ATCC ® 53592D™ Designation: DNA from Chlamydophila pneumoniae strain AR-39 (ATCC ® 53592™) Application: It is suitable for use in PCR and other molecular bacteriology and virology applications.
Species of Chlamydia are the etiologic agent of endemic blinding trachoma, the leading cause of bacterial sexually transmitted diseases, significant respiratory pathogens, and a zoonotic threat. Their dependence on an intracellular growth niche and their peculiar developmental cycle are major challenges to elucidating their biology and virulence traits. The last decade has seen tremendous advances in our ability to perform a molecular genetic analysis of Chlamydia species. Major achievements include the generation of large collections of mutant strains, now available for forward- and reverse-genetic applications, and the introduction of a system for plasmid-based transformation enabling complementation of mutations; expression of foreign, modified, or reporter genes; and even targeted gene disruptions. This review summarizes the current status of the molecular genetic toolbox for Chlamydia species and highlights new insights into their biology and new challenges in the nascent field of Chlamydia ...
Chlamydophila psittaci ATCC ® VR-351™ Designation: Ornithosis strain Texas Turkey [strain Texas turkey] Application: Addition of cycloheximide recommended for passage in cell culture.
Chlamydia pecorum is a globally recognised pathogen of livestock and koalas. To date, comparative genomics of C. pecorum strains from sheep, cattle and koalas has revealed that only single nucleotide polymorphisms (SNPs) and a limited number of pseudogenes appear to contribute to the genetic diversity of this pathogen. No chlamydial plasmid has been detected in these strains despite its ubiquitous presence in almost all other chlamydial species. Genomic analyses have not previously included C. pecorum from porcine hosts. We sequenced the genome of three C. pecorum isolates from pigs with differing pathologies in order to re-evaluate the genetic differences and to update the phylogenetic relationships between C. pecorum from each of the hosts. Whole genome sequences for the three porcine C. pecorum isolates (L1, L17 and L71) were acquired using C. pecorum-specific sequence capture probes with culture-independent methods, and assembled in CLC Genomics Workbench. The pairwise
A species of gram negative, obligately intracellular, spherical shaped bacteria belonging to the phylum Chlamydiae. This species survives outside of its host as an elementary body. C. psittaci is pathogenic, being the causative agent of endemic avian chlamydiosis and epizootic infection in mammals.
Chlamydiae are medically important bacteria responsible for a wide range of human infections and diseases. Repeated episodes of infection promote chronic inflammation associated with detrimental immune system-mediated pathologic changes. However, the true nature of chlamydial pathogenesis may encompass repeated infection superimposed upon persistent infection, which would allow for heightened immune reactivity. During the course of chlamydial infection, numerous host elaborated factors with inhibitory or modifying effects may cause alterations in the chlamydia-host cell relationship such that the organism is maintained in a nonproductive stage of growth. Abnormal or persistent chlamydiae have been recognized under a variety of cell culture systems. The numerous factors associated with altered growth suggest an innate flexibility in the developmental cycle of chlamydiae. This review evaluates in vitro studies of chlamydial persistence and correlates these model systems to features of natural ...
Chlamydiae is a bacterial phylum and class whose members are obligate intracellular pathogens. All known Chlamydiae only grow by infecting eukaryotic host cells. They are as small or smaller than many viruses. Most intracellular Chlamydiae are located in an inclusion body or vacuole. ...
飯島 義雄 , 秋吉 京子 , 田中 忍 , 貫名 正文 , 伊藤 正寛 , 春田 恒和 , 井上 明 , 安藤 秀二 , 岸本 寿男 感染症学雑誌 : 日本伝染病学会機関誌 : the journal of the Japanese Association for Infectious Diseases 83(5), 500-505, 2009-09-20 医中誌Web 参考文献10件 ...
There are many reasons not to keep pet parrots. Theyre long-lived birds that require years, if not decades, of care. They can be messy and destructive. And, above all, many species are in danger of extinction and quelching the market for them is one helpful thing we can do. But, todays parasite is another reason. Chlamydophila psittaci is a species of bacteria that causes a very serious disease in both birds and mammals, including humans, known as psittacosis. These bacteria have a pretty unusual life cycle - they alternate between being intracellular bacteria in the lungs of their hosts and very resistant stages known as elementary bodies. When engulfed by phagocytosis and attacked with a lysosome, the elementary bodies say Ha! and just begin to replicate instead - even going so far as to use some of the host cells own organelles. Eventually they kill the host cell and become elementary bodies again, ready to reinfect this host or be spread to another one. In 1929, a major outbreak of ...
Environmental chlamydiae belonging to the Parachlamydiaceae are obligate intracellular bacteria that infect Acanthamoeba, a free-living amoeba, and are a risk for hospital-acquired pneumonia. However, whether amoebae harboring environmental chlamydiae actually survive in hospital environments is unknown. We therefore isolated living amoebae with symbiotic chlamydiae from hospital environments. One hundred smear samples were collected from Hokkaido University Hospital, Sapporo, Japan; 50 in winter (February to March, 2012) and 50 in summer (August, 2012), and used for the study. Acanthamoebae were isolated from the smear samples, and endosymbiotic chlamydial traits were assessed by infectivity, cytokine induction, and draft genomic analysis. From these, 23 amoebae were enriched on agar plates spread with heat-killed Escherichia coli. Amoeba prevalence was greater in the summer-collected samples (15/30, 50%) than those of the winter season (8/30, 26.7%), possibly indicating a seasonal variation (p = 0.096
The team discovered that one of these new groups of Chlamydiae is closely related to Chlamydia that cause disease in humans and other animals. inding that Chlamydia have marine sediment relatives, has given new insights into how chlamydial pathogens evolved, some of these new groups of Chlamydiae are exceptionally abundant in these ocean sediments.. Unfortunately, the researchers have as of yet been unable to grow these Chlamydiae or take images of them. Even if these Chlamydiae are not associated with a host organism, we expect that they require compounds from other microbes living in the marine sediments.. Additionally, the environment they live in is extreme, without oxygen and under high pressure, this makes growing them a challenge, explains Thijs Ettema. Nevertheless, the discovery of Chlamydiae in this unexpected environment challenges the current understanding of the biology of this ancient group of bacteria, and hints that additional Chlamydiae are awaiting to be discovered. The ...
Chlamydia species are obligate intracellular bacteria that infect a broad range of mammalian hosts. Members of related genera are pathogens of a variety of vertebrate and invertebrate species. Despite the diversity of Chlamydia, all species contain an outer membrane lipooligosaccharide (LOS) that is comprised of a genus-conserved, and genus-defining, trisaccharide 3-deoxy-D-manno-oct-2-ulosonic acid Kdo region. Recent studies with lipopolysaccharide inhibitors demonstrate that LOS is important for the C. trachomatis developmental cycle during RB- > EB differentiation. Here, we explore the effects of one of these inhibitors, LPC-011, on the developmental cycle of five chlamydial species. Sensitivity to the drug varied in some of the species and was conserved between others. We observed that inhibition of LOS biosynthesis in some chlamydial species induced formation of aberrant reticulate bodies, while in other species, no change was observed to the
Define genus Haliotis. genus Haliotis synonyms, genus Haliotis pronunciation, genus Haliotis translation, English dictionary definition of genus Haliotis. Noun 1. genus Haliotis - type genus of the family Haliotidae Haliotis mollusk genus - a genus of mollusks family Haliotidae, Haliotidae - abalones abalone,...
Pourquier, P. (IDvet, France), Rodalakis, A and Mohamad, KY (INRA, Nouzilly, France). Preliminary validation of a new commercial ELISA kit for the detection of antibodies directed against C. abortus. Presented at the WAVLD Conference, 2007 ...
Chlamydiae: | | | | Chlamydiae | | | ... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled.
2017 The Author(s). The order Chlamydiales are biphasic intracellular bacterial pathogens infecting humans and domesticated animals. Wildlife infections have also been reported, with the most studied example being Chlamydia pecorum infections in the koala, an iconic Australian marsupial. In koalas, molecular evidence suggests that spill-over from C. pecorum infected livestock imported into Australia may have had a historical or contemporary role. Despite preliminary evidence that other native Australian marsupials also carry C. pecorum, their potential as reservoirs of this pathogen and other Chlamydia-related bacteria (CRBs) has been understudied. Mucosal epithelial samples collected from over 200 native Australian marsupials of different species and geographic regions across Australia were PCR screened for Chlamydiales. Previously described and genetically distinct C. pecorum genotypes and a range of 16S rRNA genotypes sharing similarity to different CRBs in the broader Chlamydiales order were ...
article{347740, author = {VAN LOOCK, M and LOOTS, K and VAN HEERDEN, M and Vanrompay, Daisy and Goddeeris, Bruno}, issn = {0928-4249}, journal = {VETERINARY RESEARCH}, language = {eng}, number = {6}, pages = {745--755}, publisher = {EDP SCIENCES S A}, title = {Exacerbation of Chlamydophila psittaci pathogenicity in turkeys superinfected by Escherichia coli}, volume = {37}, year = {2006 ...
Baud, D., Regan, L. & Greub, G. (2008). Emerging role of Chlamydia and Chlamydia-like organisms in adverse pregnancy outcomes. Current Opinion in Infectious Diseases Feb; 21 (1): 70 - 76.. Baud, D., Thomas, V., Arafa A., Regan, L. & Greub, G. (2007). Waddlia chondrophila, a potential agent of human fetal death. Emerg Infect Dis 13(8), 1239 - 1243. Full paper (html). Bodett, T. J., Viggers, K., Warren, K., Swan, R., Conaghty, S., Sims, C. et al. (2003). Wide range of Chlamydiale types detected in native Australian mammals. Vet Microbiol. 96, 177 - 187.. Borel N. et al., (2006). Chlamydia-related abortions in cattle from Graubunden, Switzerland. Vet Pathol 43 (5), 702 - 708.. Borel N, Ruhl S, Casson N, Kaiser C, Pospischil A, Greub G. (2007). Parachlamydia spp. and related Chlamydia-like organisms and bovine abortion. Emerg Infect Dis. Full paper (html). Chua, K. B. (2003). A novel approach for collecting samples from fruit bats for isolation of infectious agents. Microbes and Infection 5, 487 - ...
The late chlamydial inclusion membrane is not derived from the endocytic pathway and is relatively deficient in host proteins.: Chlamydiae are obligate intracel
Pneumonia, Chlamydophila. In: Papadakis MA, McPhee SJ. Papadakis M.A., McPhee S.J. Eds. Maxine A. Papadakis, and Stephen J. McPhee.eds. Quick Medical Diagnosis & Treatment 2017 New York, NY: McGraw-Hill; . http://accessmedicine.mhmedical.com/content.aspx?bookid=2033§ionid=152415161. Accessed January 24, 2018 ...
BLOT kit for the detection of specific IgA antibodies to the recombinant antigens of Chlamydia species in human serum and plasma.
Chlamydia and Chlamydia‐like bacteria are well known to infect several organisms and may cause a wide range of diseases, particularly in ruminants. To gain insight into the prevalence and diversity of these intracellular bacteria, we applied a pan‐Chlamydiales real‐time PCR to 1,134 veterinary samples taken from 130 Tunisian ruminant herds. The true adjusted animal population‐level prevalence was ...
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nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... Bush RM, Everett KD (January 2001). "Molecular evolution of the Chlamydiaceae". International Journal of Systematic and ... Chlamydophila is a controversial bacterial genus belonging to the family Chlamydiaceae, order Chlamydiales, class/phylum ... "reunite the Chlamydiaceae into a single genus, Chlamydia". By the 2010s this reclassification "was not wholly accepted or ...
Molecular signatures have also been found that are exclusive for the family Chlamydiaceae. The Chlamydiaceae originally ... 2004 Family Chlamydiaceae Rake 1957 emend. Everett, Bush & Andersen 1999 Genus Amphibiichlamydia Martel et al. 2012 Species A. ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... Genome sequencing, however, indicates that 11% of the genes in Protochlamydia amoebophila UWE25 and 4% in the Chlamydiaceae are ...
Evolution of Chlamydiaceae Andersson JO Andersson SG; Andersson (1999). "Genome degradation is an ongoing process in Rickettsia ...
From this information, they proposed that the bacteria are likely a novel member of a genus in the family Chlamydiaceae. ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... Through comparative genomics with the family Chlamydiaceae and the species Protochlamydia amoebophilia, a GC content of 35-36% ... Parachlamydia and Chlamydiaceae in bovine abortion" (PDF). Veterinary Microbiology. 152 (3-4): 385-393. doi:10.1016/j.vetmic. ...
Chlamydia is part of the order Chlamydiales, family Chlamydiaceae. In the early 1990s six species of Chlamydia were known. A ... 2015), "Chlamydiaceae genomics reveals interspecies admixture and the recent evolution of Chlamydia abortus infecting lower ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... "reunite the Chlamydiaceae into a single genus, Chlamydia". This appears to have been accepted by the community, bringing the ...
The Chlamydiaceae and Mycoplasmataceae lack a peptidoglycan layer so do not retain crystal violet or safranin, resulting in no ... These include the Chlamydiaceae, Legionella and the Mycoplasmataceae (including mycoplasma and ureaplasma); the Rickettsiaceae ...
nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... The Parachlamydiaceae are not recognized by monoclonal antibodies that detect Chlamydiaceae lipopolysaccharide.[citation needed ... identical to ribosomal genes in the Chlamydiaceae. The Parachlamydiaceae naturally infect amoebae and can be grown in cultured ... Nova Scotia whose sera recognized Hall's coccus did not show serological cross-reaction with antigens from the Chlamydiaceae. ...
Bouts of illness (possibly chlamydiaceae) troubled him for the rest of his life. In 1784, Jourdan was discharged from the army ...
Chlamydiaceae Rake 1957 emend. Everett et al. 1999 *Candidatus Clavochlamydia Karlsen et al. 2008 ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... de Chlamydiaceae son moi similares aos xenes dos cloroplastos, plantas, e cianobacterias.[10] Pero a filoxenia e a presenza ... Chlamydiaceae, Parachlamydiaceae, Simkaniaceae, e Waddliaceae),[7][8] e fora proposta unha familia máis, as ( ...
The Simkaniaceae are not recognized by monoclonal antibodies that are specific for Chlamydiaceae lipopolysaccharide. The family ... identical to ribosomal genes in the Chlamydiaceae. ...
nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... Chlamydia pecorum, also known as Chlamydophila pecorum is a species of Chlamydiaceae that originated from ruminants, such as ... "Chlamydiaceae and Chlamydia-like organisms in the koala (Phascolarctos cinereus)--organ distribution and histopathological ... sixteen years after it was named as the fourth species of the Chlamydiaceae family" (PDF). Veterinary Research. 41 (3): 27. doi ...
Famili Chlamydiaceae *Genus Chlamydia. *Genus Chlamydophila. *Famili Parachlamydiaceae *Parachlamydia acanthamoebae. * ...
August 2002). "Evidence that plant-like genes in Chlamydia species reflect an ancestral relationship between Chlamydiaceae, ...
Evidence that plant-like genes in Chlamydia species reflect an ancestral relationship between Chlamydiaceae, cyanobacteria, and ...
nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... examining the role of niche-specific genes in the evolution of the Chlamydiaceae". Nucleic Acids Res. 31 (8): 2134-47. doi: ...
... s have few natural predators and parasites, but are threatened by various pathogens, such as Chlamydiaceae bacteria and ... Koalas can be subject to pathogens such as Chlamydiaceae bacteria, which can cause keratoconjunctivitis, urinary tract ...
The obligate intracellular bacteria in family Chlamydiaceae are unique in their morphology as they do not contain detectable ...
... examining the role of niche-specific genes in the evolution of the Chlamydiaceae". Nucleic Acids Res. 31 (8): 2134-47. doi: ...
"Comparative analyses of secondary gene products of 3-deoxy-D-manno-oct-2-ulosonic acid transferases from Chlamydiaceae in ...
... identical to ribosomal genes in the Chlamydiaceae. The type species is Waddlia chondrophila strain WSU 86-1044T, which was ...
nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ...
nov., each containing two monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ...
Currently, the order Chlamydiales includes the families Chlamydiaceae, Simkaniaceae, and Waddliaceae, which have Gram-negative ...
"Evidence That Plant-Like Genes in Chlamydia Species Reflect an Ancestral Relationship between Chlamydiaceae, Cyanobacteria, ...
... chlamydiaceae infections MeSH C01.252.400.210.210 - chlamydia infections MeSH C01.252.400.210.210.250 - conjunctivitis, ...
... class of bacteria including Chlamydiaceae Chlamydophila, another genus of pathogenic bacteria Chlamydophila abortus, a ...
Family Saprospiraceae Family Flexibacteraceae Family Flammeovirgaceae Family Crenotrichaceae Family Chlamydiaceae Genus ...
... chlamydiaceae MeSH B03.440.190.190.190 - Chlamydia MeSH B03.440.190.190.190.500 - Chlamydia muridarum MeSH B03.440.190.190. ...
... ribosomal RNA genes all have at least 90% DNA sequence identity. Chlamydiaceae species have varying inclusion ... The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiae, order Chlamydiales. ... Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously called the ... The family Chlamydiaceae currently includes one genus and one candidate genus: Chlamydia and candidatus Clavochlamydia. Three ...
Evidence That Plant-Like Genes in Chlamydia Species Reflect an Ancestral Relationship between Chlamydiaceae, Cyanobacteria, and ...
Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity. Chlamydiaceae species have varying inclusion ... The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiae, order Chlamydiales. ... Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously called the ... The family Chlamydiaceae currently includes one genus and one candidate genus: Chlamydia and candidatus Clavochlamydia. Three ...
The primer-target binding sequences are useful for amplification and detection of organisms of the Chlamydiaceae family in a ... Bumper primer for SDA amplification of Chlamydiaceae. 7 gctcctactc ctaaa 15 8. 18. DNA. Bumper primer for SDA amplification of ... Three species in the family Chlamydiaceae: Chlamydophila pneumoniae (formerly Chlamydia pneumoniae), Chlamydia trachomatis and ... Primer for SDA amplification of Chlamydiaceae. 3 accgcatcga atgactgtct cgggttcagc ctgtctataa a 41 4. 40. DNA. Primer for SDA ...
Murine antibodies S25-23, S25-26, and S25-5 derive from a common germ-line origin, and all bind the Chlamydiaceae family- ... Murine antibodies S25-23, S25-26, and S25-5 derive from a common germ-line origin, and all bind the Chlamydiaceae family- ... S25-23 Fab in complex with Chlamydiaceae LPS (Crystal form 2). *DOI: 10.2210/pdb6C5K/pdb ... Subtle Changes in the Combining Site of the Chlamydiaceae-Specific mAb S25-23 Increase the Antibody-Carbohydrate Binding ...
The Chlamydiaceae diagnostic laboratory performs diagnosis of chlamydial infections in both animals and humans. This laboratory ...
D85709) and therefore can be identified as a member of the family Chlamydiaceae (5). The closest 16S rRNA similarity (92%) was ... Novel Chlamydiaceae Disease in Captive Salamanders. Emerging Infectious Diseases. 2012;18(6):1020-1022. doi:10.3201/ ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... The phylogenetic position of the novel taxon in the family Chlamydiaceae thus roughly reflects the phylogenetic relation ...
Here is described a new real-time PCR assay that allows specific detection of atypical Chlamydiaceae from pigeons. The assay ... different from the established Chlamydiaceae, requires the development of a specific and rapid detection tool to investigate ... Recent evidence of the occurrence of atypical Chlamydiaceae strains in pigeons, ... Recent evidence of the occurrence of atypical Chlamydiaceae strains in pigeons, different from the established Chlamydiaceae, ...
Furthermore, Chlamydiaceae infections are often unnoticed because tests for Chlamydiaceae are not routinely performed in all ... However, Chlamydiaceae are still considered as non-important pathogens because reports of porcine chlamydiosis are rare. ... Chlamydiaceae infections in pigs are associated with different pathologies such as conjunctivitis, pneumonia, pericarditis, ... However, recent studies have demonstrated that Chlamydiaceae infections in breeding sows, boars and piglets occur more often ...
In Chlamydiaceae the hit gene is flanked upstream by a gene predicted to encode a metal dependent hydrolase and downstream by a ... In the Mollicutes HinT proteins were shown to be linked with membrane proteins while in the Chlamydiaceae they were genetically ... Organization of the hit loci in Chlamydiaceae. In the obligately intra cellular Chlamydiaceae the order of genes within the hit ... Schematic of the hit loci in Mollicutes and Chlamydiaceae . A schematic representation of genes within the hit loci of the ...
This study reports the PCR-based prevalence of Chlamydiaceae DNA that does not 100% match any avian or mammalian Chlamydiaceae ... This study reports the PCR-based prevalence of Chlamydiaceae DNA that does not 100% match any avian or mammalian Chlamydiaceae ... This study reports the PCR-based prevalence of Chlamydiaceae DNA that does not 100% match any avian or mammalian Chlamydiaceae ... This study reports the PCR-based prevalence of Chlamydiaceae DNA that does not 100% match any avian or mammalian Chlamydiaceae ...
Skwor, T., & Dean, D. (2013). Chlamydiaceae. McKee, M. L., & de Filppis I (Eds.). Molecular Typing in Bacterial Infections. ...
Chlamydiaceae: Diseases in Primary Hosts and Zoonosis. Choose your preferred view mode. Please select whether you prefer to ...
The HIV pandemic continues with an estimated 13,000 new infections each day, the vast majority of which are acquired through heterosexual intercourse. Although consistent and correct use of condoms by men remains the most effective form of protection from heterosexually acquired HIV, women are not always able to negotiate condom use. An effective prophylactic vaccine remains a key objective, but development is slow because of virus variability and difficulty in determining the immunological correlates of protection. Vaginal microbicides are being developed in response to the urgent need for an HIV prevention method that women can control. Licensed spermicides containing nonoxynol-9 (N-9), which has potent anti-HIV activity in vitro, were the first products to be investigated as potential microbicides. However, the association of N-9 and other products belonging to this class (surfactants) with genital epithelial disruption, histologically determined genital inflammation, and reduction in ...
Chlamydiaceae Infections. Gram-Negative Bacterial Infections. Bacterial Infections. Sexually Transmitted Diseases, Bacterial. ...
Chlamydiaceae Infections. Gram-Negative Bacterial Infections. Eye Infections. Infection. Conjunctivitis. Conjunctival Diseases ...
In contrast to the highly reduced genomes of the Chlamydiaceae (gray squares), the genomes of Simkania, Waddlia, and the ... The number of chromosomal and plasmid homologs with the plasmids of the Chlamydiaceae, Simkania, and T4S system proteins (Tra) ... A) Homologs of chlamydial plasmid-encoded proteins on plasmids and chromosomes of representatives of the Chlamydiaceae, ... Red lines indicate homologs with the virulence plasmid of the Chlamydiaceae. Orange lines indicate genes encoding proteins of ...
Chlamydiaceae Infections. Gram-Negative Bacterial Infections. Bacterial Infections. Sexually Transmitted Diseases, Bacterial. ...
Novel Chlamydiaceae Disease in Captive Salamanders An Martel. , Connie Adriaensen, Sergé Bogaerts, Richard Ducatelle, Herman ... Topology of the novel amphibian Chlamydiaceae (Candidatus Amphibiichlamydia salamandrae) within the phylogenetic tree obtained ...
OC Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae; Chlamydia. OX NCBI_TaxID=707183; RN [0] RP -.; RG -.; RL -.; CC -!- SEQ. ...
Classification: Chlamydiaceae Product Format: frozen 100 µL per vial For-Profit: $290.00 Non-Profit: $290.00 ...
Classification: Chlamydiaceae Product Format: frozen 1 mL per vial For-Profit: $354.00 Non-Profit: $300.90 ...
Classification: Chlamydiaceae Product Format: freeze-dried For-Profit: $1,020.00 Non-Profit: $849.97 ...
Chlamydiaceae Deposited As Chlamydia psittaci (Lillie) Page Agent Chlamydophila pecorum (Fukushi and Hirai) Everett et al. ...
Chlamydiaceae; OC Chlamydia/Chlamydophila group; Chlamydia. OX NCBI_TaxID=218497; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE ...
Chlamydiaceae; OC Chlamydia/Chlamydophila group; Chlamydia. OX NCBI_TaxID=272561; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE ...
Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae; Chlamydia/Chlamydophila group; Chlamydia. Data source. GenBank (Assembly: ...
Chlamydiaceae. Name a genus that is not stained by Gram stain and can only synthetize limited amounts of ATP. Rickettsia. ...
Chlamydiaceae Rake 1957 emend. Everett et al. 1999 *Candidatus Clavochlamydia Karlsen et al. 2008 ... nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new ... de Chlamydiaceae son moi similares aos xenes dos cloroplastos, plantas, e cianobacterias.[10] Pero a filoxenia e a presenza ... Chlamydiaceae, Parachlamydiaceae, Simkaniaceae, e Waddliaceae),[7][8] e fora proposta unha familia máis, as ( ...
Chlamydiaceae / genetics* * DNA, Bacterial / genetics * Evolution, Molecular* * Planctomycetales / genetics* * RNA, Ribosomal, ...
Synonymous Codon Usages as an Evolutionary Dynamic for Chlamydiaceae.. Li Z, Hu W, Cao X, Liu P, Shang Y, Zhou J. ...
  • The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiae, order Chlamydiales. (wikipedia.org)
  • The novel Chlamydiales forms a distinct branch in the well-supported monophyletic clade with the genera Chlamydia and Candidatus Clavochlamydia salmonicola (family Chlamydiaceae ) ( Figure ). (cdc.gov)
  • [ 3 ] A orde Chlamydiales foi creada por Storz e Page en 1971. (wikipedia.org)
  • Chlamydophila is a controversial bacterial genus belonging to the family Chlamydiaceae, order Chlamydiales, class/phylum Chlamydiae. (wikipedia.org)
  • Everett K.D.E.et al.Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam.nov. and Simkaniaceae fam.nov.,each containing one mono typic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms //Inter.J.Syst.Bacterial.v1999.v Vol.49.v P.415 v440. (veterinar.ru)
  • This term derives from the name of the bacterial genus Chlamydiain the family Chlamydiaceae, order Chlamydiales, class and phylum Chlamydiae. (prospecbio.com)
  • 90% similar to ribosomal genes in WSU 86-1044 T . The family Waddliaceae belongs to the order Chlamydiales and is a sister taxon of the Chlamydiaceae because the ribosomal genes are 80�90% similar to ribosomal genes in the Chlamydiaceae . (chlamydiae.com)
  • fitting into the 80�90% identity range that makes this organism a member of the order Chlamydiales , but not a member of the family Chlamydiaceae . (chlamydiae.com)
  • This enabled us to perform the first comprehensive comparative and phylogenomic analysis of representative members of four major families of the Chlamydiae, including the Chlamydiaceae. (nih.gov)
  • Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously called the genus-specific epitope). (wikipedia.org)
  • The family Chlamydiaceae currently includes one genus and one candidate genus: Chlamydia and candidatus Clavochlamydia. (wikipedia.org)
  • We describe an apparently new disease in salamanders that is associated with a novel genus within the family Chlamydiaceae . (cdc.gov)
  • proposed to subdivide Chlamydiaceae into two genera, Chlamydia (consisting of C. muridarum , C. suis , and C. trachomatis ) and Chlamydophila (consisting of the remaining six species) ( 3 ). (asm.org)
  • There are two genera in Chlamydiaceae: Chlamydia and Chlamydophila. (prospecbio.com)
  • Chlamydiaceae are Gram-negative obligate intracellular bacteria. (biomedcentral.com)
  • Chlamydiaceae bacteria infect many vertebrate hosts, and previous reports based on polymerase chain reaction (PCR) assays and serologic assays that are prone to cross-reaction among chlamydial organisms have been used to describe the prevalence of either DNA fragments or antibodies to Chlamydia spp. (elsevier.com)
  • The Chlamydiaceae family shares a unique developmental cycle that is different from all other bacteria. (cdc.gov)
  • y determinar su genotipo en individuos con potencial riesgo de exposición a la bacteria. (scielo.org.co)
  • However any infection caused by the family of bacteria Chlamydiaceae may be termed Chlamydia infections. (differencebetween.net)
  • Chlamydiaceae species have varying inclusion morphology, varying extrachromosomal plasmid content, and varying sulfadiazine resistance. (wikipedia.org)
  • Topology of the novel amphibian Chlamydiaceae ( Candidatus Amphibiichlamydia salamandrae) within the phylogenetic tree obtained by neighbor-joining and based on 16S rRNA gene data from representative species. (cdc.gov)
  • Characterization of Chlamydiaceae species using PCR and high resolution melt curve analysis of the 16S rRNA gene. (semanticscholar.org)
  • This study reports the PCR-based prevalence of Chlamydiaceae DNA that does not 100% match any avian or mammalian Chlamydiaceae in wild populations of hawks in California Buteo species. (elsevier.com)
  • The overall prevalence of Chlamydiaceae DNA detection in wild Buteo species sampled was 1.37% (4/291) via qPCR-based analysis. (elsevier.com)
  • An effective vaccine is not on the market for any of the Chlamydiaceae species. (wur.nl)
  • Acquiring insight in the prevalence of Chlamydiaceae in the various animal species would be a first step towards awareness of the problem. (wur.nl)
  • Multiple Chlamydiaceae species in trachoma: implications for disease pathogenesis and control. (bmj.com)
  • The Chlamydiaceae diagnostic laboratory performs diagnosis of chlamydial infections in both animals and humans. (ugent.be)
  • Furthermore, Chlamydiaceae infections are often unnoticed because tests for Chlamydiaceae are not routinely performed in all veterinary diagnostic laboratories and Chlamydiaceae are often found in association with other pathogens, which are sometimes more easily to detect. (biomedcentral.com)
  • However, recent studies have demonstrated that Chlamydiaceae infections in breeding sows, boars and piglets occur more often than thought and are economically important. (biomedcentral.com)
  • This paper presents an overview on: the taxonomy of Chlamydiaceae occurring in pigs, diagnostic considerations, epidemiology and pathology of infections with Chlamydiaceae in pigs, public health significance and finally on prevention and treatment of Chlamydiaceae infections in pigs. (biomedcentral.com)
  • Chlamydiaceae infections in pigs have been known to occur since 1955 when Willingan and Beamer [ 2 ] first isolated chlamydia from cases of arthritis and pericarditis in U.S. pigs. (biomedcentral.com)
  • Other proteins, including chlamydial protease-associated factor (CPAF) and a hypothetical protein unique to the family Chlamydiaceae, CT795, elicit strong immune responses in urogenital infections, but their role in trachomatous disease is unknown. (arvojournals.org)
  • In contrast to the highly reduced genomes of the Chlamydiaceae (gray squares), the genomes of Simkania , Waddlia , and the Parachlamydiaceae are significantly larger (black squares). (nih.gov)
  • The aim of this project is to develop genotype-specific serology for Chlamydiaceae , with focus on C. psittaci and C. abortus , and to apply the developed serology for monitoring of poultry, using sera from the existing monitoring programme for avian influenza (post-exposure detection). (wur.nl)
  • C. psittaci , along with C. pneumoniae and C. trachomatis , are members of the bacterial family Chlamydiaceae. (cdc.gov)
  • However, Chlamydiaceae are still considered as non-important pathogens because reports of porcine chlamydiosis are rare. (biomedcentral.com)
  • The Chlamydiaceae comprise a group of highly adapted bacterial pathogens sharing a unique intracellular lifestyle. (frontiersin.org)
  • Recent evidence of the occurrence of atypical Chlamydiaceae strains in pigeons, different from the established Chlamydiaceae, requires the development of a specific and rapid detection tool to investigate their prevalence and significance. (semanticscholar.org)
  • Here is described a new real-time PCR assay that allows specific detection of atypical Chlamydiaceae from pigeons. (semanticscholar.org)
  • Atypical chlamydiaceae in wild populations of hawks (Buteo spp. (elsevier.com)
  • Fingerprint Dive into the research topics of 'Atypical chlamydiaceae in wild populations of hawks (Buteo spp. (elsevier.com)
  • The primer-target binding sequences are useful for amplification and detection of organisms of the Chlamydiaceae family in a variety of amplification and detection reactions. (google.com)
  • Since our changes appeared at sms with membrane of prednisolone pills for dogs the ademhaling claiming that drug induced pneumonia of chlamydiaceae, we compared our organisms to totally reported receptors. (covetshop.net)
  • Chlamydiaceae ribosomal RNA genes all have at least 90% DNA sequence identity. (wikipedia.org)
  • This project focuses on Chlamydiaceae in poultry. (wur.nl)
  • In the Mollicutes HinT proteins were shown to be linked with membrane proteins while in the Chlamydiaceae they were genetically and physically associated with cytoplasmic proteins, one of which is predicted to be a metal-dependent phosphoesterase. (biomedcentral.com)
  • Genome sequencing of Chlamydia trachomatis serovar D has identified polymorphic membrane proteins (Pmp) that are a newly recognized protein family unique to the Chlamydiaceae family. (asm.org)
  • Several studies, however, described the occurrence of alternative developmental stages consisting of abnormal sized, mostly enlarged RB-like structures called aberrant bodies (ABs) and their association with persistence of Chlamydiaceae [ 1 ]. (biomedcentral.com)
  • Chlamydiaceae family, Parachlamydia spp. (uzh.ch)
  • Impact of urban environment and host phenotype on the epidemiology of Chlamydiaceae in feral pigeons (Columba livia). (semanticscholar.org)
  • [ 13 ] [ 14 ] Porén, a secuenciación do xenoma indica que o 11% dos xenes de Candidatus Protochlamydia amoebophila UWE25 e o 4% de Chlamydiaceae son moi similares aos xenes dos cloroplastos , plantas , e cianobacterias . (wikipedia.org)
  • Chlamydiaceae are responsible for a broad range of diseases in pigs. (ugent.be)
  • 1990]. The full length of Waddlia chondrophila 16S rDNA sequence is 15 � 25 % different from the 16S rDNA of Chlamydiaceae spp. (chlamydiae.com)
  • Transmission electron microscopic examination of the liver of a yellow spotted newt revealed intracellular inclusions containing particles matching the morphology of reticulate or elementary bodies of Chlamydiaceae ( Technical Appendix ). (cdc.gov)
  • The antibiotics of ligne week of chlamydiaceae in vitro remain a area of multiple story in the story. (lelycenter.dk)
  • Positive swab samples from these four birds were sequenced based on the ompA gene and compared by high-resolution melt analysis with all known avian and mammalian Chlamydiaceae. (elsevier.com)
  • D85709) and therefore can be identified as a member of the family Chlamydiaceae ( 5 ). (cdc.gov)
  • Previously, no IS-like elements have been identified for Chlamydiaceae . (asm.org)
  • Murine antibodies S25-23, S25-26, and S25-5 derive from a common germ-line origin, and all bind the Chlamydiaceae family-specific epitope αKdo(2→8)αKdo(2→4)αKdo (where Kdo is 3-deoxy-α-d- manno-oct-2-ulosonic acid) with high affinity and specificity. (rcsb.org)