Bacteriocin plasmids. Medical search

Plasmids encoding bacterial exotoxins (BACTERIOCINS).

Substances elaborated by specific strains of bacteria that are lethal against other strains of the same or related species. They are protein or lipopolysaccharide-protein complexes used in taxonomy studies of bacteria.

Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS.

A genus of gram-positive, facultatively anaerobic bacteria whose growth is dependent on the presence of a fermentable carbohydrate. No endospores are produced. Its organisms are found in fermenting plant products and are nonpathogenic to plants and animals, including humans.

A genus of gram-positive, microaerophilic, rod-shaped bacteria occurring widely in nature. Its species are also part of the many normal flora of the mouth, intestinal tract, and vagina of many mammals, including humans. Pathogenicity from this genus is rare.

A parasexual process in BACTERIA; ALGAE; FUNGI; and ciliate EUKARYOTA for achieving exchange of chromosome material during fusion of two cells. In bacteria, this is a uni-directional transfer of genetic material; in protozoa it is a bi-directional exchange. In algae and fungi, it is a form of sexual reproduction, with the union of male and female gametes.

Deoxyribonucleic acid that makes up the genetic material of bacteria.

Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

A genus of bacteria which may be found in the feces of animals and man, on vegetation, and in silage. Its species are parasitic on cold-blooded and warm-blooded animals, including man.

A 34-amino acid polypeptide antibiotic produced by Streptococcus lactis. It has been used as a food preservative in canned fruits and vegetables, and cheese.

A non-pathogenic species of LACTOCOCCUS found in DAIRY PRODUCTS and responsible for the souring of MILK and the production of LACTIC ACID.

A genus of gram-positive, coccoid bacteria mainly isolated from milk and milk products. These bacteria are also found in plants and nonsterile frozen and dry foods. Previously thought to be a member of the genus STREPTOCOCCUS (group N), it is now recognized as a separate genus.

A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.

The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.

The functional hereditary units of BACTERIA.

A class of plasmids that transfer antibiotic resistance from one bacterium to another by conjugation.

A family of gram-positive bacteria found regularly in the mouth and intestinal tract of man and other animals, in food and dairy products, and in fermenting vegetable juices. A few species are highly pathogenic.

A species of gram-positive, coccoid bacteria commonly isolated from clinical specimens and the human intestinal tract. Most strains are nonhemolytic.

Proteins found in any species of bacterium.

A species of gram-positive, rod-shaped bacteria isolated from the intestinal tract of humans and animals, the human mouth, and vagina. This organism produces the fermented product, acidophilus milk.

The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.

A species of gram-positive, coccoid bacteria whose organisms are normal flora of the intestinal tract. Unlike ENTEROCOCCUS FAECALIS, this species may produce an alpha-hemolytic reaction on blood agar and is unable to utilize pyruvic acid as an energy source.

The heritable modification of the properties of a competent bacterium by naked DNA from another source. The uptake of naked DNA is a naturally occuring phenomenon in some bacteria. It is often used as a GENE TRANSFER TECHNIQUE.

A gram-positive, non-spore-forming group of bacteria comprising organisms that have morphological and physiological characteristics in common.

A genus of gram-positive, rod-shaped bacteria whose cells occur singly, in pairs or short chains, in V or Y configurations, or in clumps resembling letters of the Chinese alphabet. Its organisms are found in cheese and dairy products as well as on human skin and can occasionally cause soft tissue infections.

A species of gram-negative, facultatively anaerobic, rod-shaped bacteria found in soil, water, food, and clinical specimens. It is a prominent opportunistic pathogen for hospitalized patients.

Vertical transmission of hereditary characters by DNA from cytoplasmic organelles such as MITOCHONDRIA; CHLOROPLASTS; and PLASTIDS, or from PLASMIDS or viral episomal DNA.

A bacteriocin produced by a plasmid that can occur in several bacterial strains. It is a basic protein of molecular weight 56,000 and exists in a complex with its immunity protein which protects the host bacterium from its effects.

The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.

Bacteriocins elaborated by mutant strains of Pseudomonas aeruginosa. They are protein or protein-lipopolysaccharide complexes lethal to other strains of the same or related species.

A group of methylazirinopyrroloindolediones obtained from certain Streptomyces strains. They are very toxic antibiotics used as ANTINEOPLASTIC AGENTS in some solid tumors. PORFIROMYCIN and MITOMYCIN are the most useful members of the group.

A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.

Substances that reduce the growth or reproduction of BACTERIA.

Bacteriocins elaborated by strains of Escherichia coli and related species. They are proteins or protein-lipopolysaccharide complexes lethal to other strains of the same species.

The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).

A genus of gram-positive, facultatively anaerobic bacteria whose growth is dependent on the presence of a fermentable carbohydrate. It is nonpathogenic to plants and animals, including humans.

A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque.

Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom.

The presence of bacteria, viruses, and fungi in food and food products. This term is not restricted to pathogenic organisms: the presence of various non-pathogenic bacteria and fungi in cheeses and wines, for example, is included in this concept.

In bacteria, a group of metabolically related genes, with a common promoter, whose transcription into a single polycistronic MESSENGER RNA is under the control of an OPERATOR REGION.

A genus of gram-positive, coccoid bacteria whose organisms occur in pairs or chains. No endospores are produced. Many species exist as commensals or parasites on man or animals with some being highly pathogenic. A few species are saprophytes and occur in the natural environment.

A natural association between organisms that is detrimental to at least one of them. This often refers to the production of chemicals by one microorganism that is harmful to another.

A species of gram-positive, rod-shaped bacteria widely distributed in nature. It has been isolated from sewage, soil, silage, and from feces of healthy animals and man. Infection with this bacterium leads to encephalitis, meningitis, endocarditis, and abortion.

Any of the processes by which cytoplasmic or intercellular factors influence the differential control of gene action in bacteria.

Bacteria which retain the crystal violet stain when treated by Gram's method.

A sequence of successive nucleotide triplets that are read as CODONS specifying AMINO ACIDS and begin with an INITIATOR CODON and end with a stop codon (CODON, TERMINATOR).

Enzymes that are part of the restriction-modification systems. They catalyze the endonucleolytic cleavage of DNA sequences which lack the species-specific methylation pattern in the host cell's DNA. Cleavage yields random or specific double-stranded fragments with terminal 5'-phosphates. The function of restriction enzymes is to destroy any foreign DNA that invades the host cell. Most have been studied in bacterial systems, but a few have been found in eukaryotic organisms. They are also used as tools for the systematic dissection and mapping of chromosomes, in the determination of base sequences of DNAs, and have made it possible to splice and recombine genes from one organism into the genome of another. EC 3.21.1.

Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).

A species of rod-shaped, LACTIC ACID bacteria used in PROBIOTICS and SILAGE production.

A genus of GRAM-POSITIVE ENDOSPORE-FORMING RODS in the family Paenibacillaceae. Most strains have been isolated from the natural environment, particularly soils.

A nutritious food consisting primarily of the curd or the semisolid substance formed when milk coagulates.

Use of restriction endonucleases to analyze and generate a physical map of genomes, genes, or other segments of DNA.

Structures within the nucleus of bacterial cells consisting of or containing DNA, which carry genetic information essential to the cell.

A species of gram-negative, facultatively anaerobic, rod-shaped bacteria that causes rotting, particularly of storage tissues, of a wide variety of plants and causes a vascular disease in CARROTS; and POTATO plants.

Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.

Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.

Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID.

Change brought about to an organisms genetic composition by unidirectional transfer (TRANSFECTION; TRANSDUCTION, GENETIC; CONJUGATION, GENETIC, etc.) and incorporation of foreign DNA into prokaryotic or eukaryotic cells by recombination of part or all of that DNA into the cell's genome.

The sum of the weight of all the atoms in a molecule.

Bacteriocins elaborated by mutant strains of Bacillus megaterium. They are protein or protein-lipopolysaccharide complexes lethal to other strains of the same species.

A genus of gram-positive, coccoid bacteria consisting of organisms causing variable hemolysis that are normal flora of the intestinal tract. Previously thought to be a member of the genus STREPTOCOCCUS, it is now recognized as a separate genus.

Any DNA sequence capable of independent replication or a molecule that possesses a REPLICATION ORIGIN and which is therefore potentially capable of being replicated in a suitable cell. (Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)

Biologically active DNA which has been formed by the in vitro joining of segments of DNA from different sources. It includes the recombination joint or edge of a heteroduplex region where two recombining DNA molecules are connected.

Mutagenesis where the mutation is caused by the introduction of foreign DNA sequences into a gene or extragenic sequence. This may occur spontaneously in vivo or be experimentally induced in vivo or in vitro. Proviral DNA insertions into or adjacent to a cellular proto-oncogene can interrupt GENETIC TRANSLATION of the coding sequences or interfere with recognition of regulatory elements and cause unregulated expression of the proto-oncogene resulting in tumor formation.

A plasmid whose presence in the cell, either extrachromosomal or integrated into the BACTERIAL CHROMOSOME, determines the "sex" of the bacterium, host chromosome mobilization, transfer via conjugation (CONJUGATION, GENETIC) of genetic material, and the formation of SEX PILI.

Isolation and characterization of ColE1-derived plasmid copy-number mutant. (1/196)

The plasmid pBGP120 is a ColE1 derivative that contains elements of the Escherichia coli lac operon and the Tn3 transposon. We have selected and isolated a copy-number mutant of pBGP120. In exponentially growing cultures, the copy-number mutant, pOP1, represents approximately 30% of total intracellular DNA compared to about 5% for pBGP120. Plasmid-encoded beta-galactosidase monomer can represent 50% of newly synthesized protein in cells carrying pOP1. pOP1 is structurally unstable in certain genetic backgrounds and under certain growth conditions, breaking down to a smaller sized plasmid that retains the DNA overproducer phenotype and the Tn3 transposon. The smaller overproducer plasmid, pOP1delta6, is generated by a continuous deletion of sequences located between one end of the Tn3 transposon and a site about 630 nucleotides from the EcoRI site in the beta-galactosidase structural gene of pOP1. pOP1delta6 retains the ColE1 origin of replication but has lost the lac promotor and operator and most of the beta-galactosidase structural gene. pOP1delta6 exists at approximately 210 copies per chromosome in exponentially growing cells. (+info)

Analysis of the CoIE1 stability determinant Rcd. (2/196)

Multimer formation is an important cause of instability for many multicopy plasmids. Plasmid CoIE1 is maintained stably because multimers are converted to monomers by Xer-mediated site-specific recombination at the cer site. However, multimer resolution is not the whole story; inactivation of a promoter (Pcer) within cer causes plasmid instability even though recombination is unaffected. The promoter directs the synthesis of a short transcript (Rcd) which is proposed to delay the division of multimer-containing cells. Mapping of the 5' terminus of Rcd confirms that transcription initiates from Pcer. The 3' terminus shows considerable heterogeneity, consistent with a primary transcript of 95 nt being degraded via intermediates of 79 and 70 nt. Secondary structure predictions for Rcd are presented. Of four mutations which abolish Rcd-mediated growth inhibition, one reduces the activity of Pcer while the other three map to the rcd coding sequence and reduce the steady-state level of the transcript. RNA folding analysis suggests that these three mutant transcripts adopt a common secondary structure in which the major stem-loop differs from that of wild-type Rcd. A survey of 24 cer-like multimer resolution sites revealed six which contain Pcer-like sequences. The putative transcripts from these sites have similar predicted secondary structures to Rcd and contain a highly conserved 15 base sequence. To test the hypothesis that Rcd acts as an anti-sense RNA, interacting with its target gene(s) through the 15 nt sequence, we used DNA hybridization and sequence analysis to find matches to this sequence in the Escherichia coli chromosome. Our failure to find plausible anti-sense targets has led to the suggestion that Rcd may interact directly with a protein target. (+info)

Expression of leading region genes on IncI1 plasmid ColIb-P9: genetic evidence for single-stranded DNA transcription. (3/196)

The leading region of a plasmid is the first sector to enter the recipient cell in bacterial conjugation. This sector of IncI1 plasmid ColIb-P9 includes genes that are transcribed in a transient pulse early in the conjugatively infected cell to promote establishment of the immigrant plasmid. Evidence is presented that the burst of gene expression is regulated by a process which is independent of a repressor but dependent on the orientation of the genes on the unique plasmid strand transferred in conjugation. The nucleotide sequence of 11.7 kb of the leading region was determined and found to contain 10 ORFs; all are orientated such that the template strand for transcription corresponds to the transferred strand. The leading region contains three dispersed repeats of a sequence homologous to a novel promoter in ssDNA described by H. Masai & K. Arai (1997, Cell 89, 897-907). It is proposed that the repeats are promoters that form in the transferring strand of ColIb to support transient transcription of genes transferred early in conjugation. (+info)

Features of distamycin preferential binding sites on natural DNA predicted using differential scanning calorimetry. (4/196)

The interaction of distamycin with ColE1 DNA was examined by using differential scanning calorimetry (DSC) taking the helix-coil transition theory of DNA into consideration. Our results here strongly indicate that the affinity of distamycin to DNA, at a low distamycin concentration, depends highly on the DNA sequence, and preferential binding occurs to the sites of four to six successive A-T pairs having two or more successive G-C pairs on both their ends. (+info)

Monomer-dimer control of the ColE1 P(cer) promoter. (5/196)

XerCD-mediated recombination at cer converts multimers of plasmid ColE1 to monomers, maximizing the number of independently segregating molecules and minimizing the frequency of plasmid loss. In addition to XerCD, recombination requires the accessory factors ArgR and PepA. The promoter P(cer), located centrally within cer, is also required for stable plasmid maintenance. P(cer) is active in plasmid multimers and directs transcription of a short RNA, Rcd, which appears to inhibit cell division. It has been proposed that Rcd is part of a checkpoint which ensures that multimer resolution is complete before the cell divides. This study has shown that ArgR does not act as a transcriptional repressor of P(cer) in plasmid monomers. P(cer) is unusual in that the -35 and -10 hexamers are separated by only 15 bp and this study has demonstrated that increasing this to a more conventional spacing results in elevated activity. An increase to 17 bp resulted in a 10- to 20-fold increase in activity, while smaller effects were seen when the spacer was increased to 16 bp or 18 bp. These observations are consistent with the hypothesis that P(cer) activation involves realignment of the -35 and -10 sequences within a recombinational synaptic complex. This predicts that a 17 bp spacer promoter derivative should be down-regulated by plasmid multimerization, and this is confirmed experimentally. (+info)

Purification and characterization of a proteolytic active fragment of DNA topoisomerase I from the brine shrimp Artemia franciscana (Crustacea Anostraca). (6/196)

The ATP-independent type I topoisomerase from the crustacean Artemia franciscana was purified to near-homogeneity. Its activity was measured by an assay that uses the formation of an enzyme-cleaved DNA complex in the presence of the specific inhibitor camptothecin. The purification procedure is reported. Purified topoisomerase is a single-subunit enzyme with a molecular mass of 63 kDa. Immunoblot performed on the different steps of purification shows that the purified 63 kDa peptide is a proteolytic fragment of a protein with a molecular mass of 110 kDa. Similarly to the other purified eukaryotic topoisomerases, the crustacean enzyme does not require a bivalent cation for activity, but is stimulated in the presence of 10 mM-MgCl2; moreover, it can relax both negative and positive superhelical turns. The enzyme activity is strongly inhibited by the antitumour drug camptothecin. The enzyme inhibition is related to the stabilization of the cleavable complex between topoisomerase I and DNA. (+info)

Structure of the ColE1 DNA molecule before segregation to daughter molecules. (7/196)

The segregation of daughter DNA molecules at the end stage of replication of plasmid ColE1 was examined. When circular ColE1 DNA replicates in a cell extract at a high KCl concentration (140 mM), a unique class of molecules accumulates. When the molecule is cleaved by a restriction enzyme that cuts the ColE1 DNA at a single site, an X-shaped molecule in which two linear components are held together around the origin of DNA replication is made. For a large fraction of these molecules, the 5' end of the leading strand remains at the origin and the 3' end of the strand is about 30 nucleotides upstream of the origin. The 3' end of the lagging strand is located at the terH site (17 nucleotides upstream of the origin) and the 5' end of the strand is a few hundred nucleotides upstream of the terH site. Thus the parental strands of the molecule intertwine with each other only once. When the KCl concentration is lowered to 70 mM, practically all of these molecules are converted to daughter circular monomers or to catenanes consisting of two singly interlocked circular units. (+info)

A new colicin that adsorbs to outer-membrane protein Tsx but is dependent on the tonB instead of the tolQ membrane transport system. (8/196)

A new colicin, Col5, was synthesized by an Escherichia coli isolate of human origin from the ECOR Collection. It was unique because it adsorbed to the outer-membrane protein Tsx, but used the tonB rather than the tolQ membrane transport system, which is employed by the only other Tsx-specific colicin, ColK. Col5 was encoded by a 5.2 kb plasmid, p5. It was inducible by mitomycin C, and strains harbouring p5 exhibited quasi-lysis. The bactericidal protein had an M(r) of 56,000. (+info)

Bacteriocin genes are located either on chromosomes or on plasmids. Strain 5 produces a plasmid-encoded bacteriocin that is ... A Theta-type plasmid has been characterized in Lactobacillus sakei in 2003. It is a potential basis for Low-Copy-Number vectors ... Sakacins are bacteriocins of class II produced by L. sakei. In strain CCUG 42687, their production is dependent on nutrients, ... The key elements of these vectors are a regulatable promoter involved in the production of the bacteriocins sakacin A and ...

https://en.wikipedia.org/wiki/Latilactobacillus_sakei

Association of a 13.6-megadalton plasmid in Pediococcus pentosaceus with bacteriocin activity. Appl. Environ. Microbiol. 50: ... Genetics of bacteriocins produced by lactic acid bacteria. FEMS Microbiol. Rev. 12 :39S-85S Barros R.R., Carvalho G.S., Peralta ... Anti-Listeria effect of enoterocin A, produced by cheese-isolated Enterococcus faecium EFM01, relative to other bacteriocins ... primarily through the production of lactic acid and secretion of bacteriocins known as pediocins. P. acidilactici has a wide ...

https://en.wikipedia.org/wiki/Pediococcus_acidilactici

Biotyping, bacteriocin typing, phage typing, plasmid analysis, and ribotyping can also be used. Most strains of S. marcescens ...

https://en.wikipedia.org/wiki/Serratia

Kerry-Williams, S.M.; Noble, W.C. (1984). "Plasmid-associated bacteriocin production in a JK-type coryneform bacterium". FEMS ... Kerry-Williams, S. M.; Noble, W. C. (2009). "Plasmids in group JK coryneform bacteria isolated in a single hospital". Journal ... Some species produce metabolites similar to antibiotics: bacteriocins of the corynecin-linocin type, antitumor agents, etc. One ... Kono, M.; Sasatsu, M.; Aoki, T. (1983). "R Plasmids in Corynebacterium xerosis Strains". Antimicrobial Agents and Chemotherapy ...

https://en.wikipedia.org/wiki/Corynebacterium

Col plasmids, which contain genes that code for bacteriocins, proteins that can kill other bacteria. Degradative plasmids, ... Plasmids can be broadly classified into conjugative plasmids and non-conjugative plasmids. Conjugative plasmids contain a set ... Many plasmids have been created over the years and researchers have given out plasmids to plasmid databases such as the non- ... Virulence plasmids, which turn the bacterium into a pathogen. e.g. Ti plasmid in Agrobacterium tumefaciens Plasmids can belong ...

https://en.wikipedia.org/wiki/Plasmid

"Molecular structure and function of the bacteriocin gene and bacteriocin protein of plasmid Clo DF13". Nucleic Acids Res. 11 (8 ... The two general classes of colicinogenic plasmids are large, low-copy-number plasmids, and small, high-copy-number plasmids. ... Retaining the colicin plasmid is very important for cells that live with their relatives, because if a cell loses the immunity ... The larger plasmids carry other genes, as well as the colicin operon. The colicin operons are generally organized with several ...

https://en.wikipedia.org/wiki/Colicin

... s, also known as bacteriocinogenic plasmids, are bacterial plasmids that direct the synthesis of bacteriocins, ... Normally the bacteriocinogen is repressed and doesn't expresss bacteriocin, but under certain conditions the plasmid is ... Wiley,USA v t e (Orphaned articles from August 2015, All orphaned articles, Plasmids, All stub articles, Microbiology stubs). ... "In vitro construction of deletion mutants of the bacteriocinogenic plasmid Clo DF13". Nucleic Acids Research. 5 (6): 1801-20. ...

https://en.wikipedia.org/wiki/Bacteriocinogen

Bacteriocin AS-48 is encoded by the pheromone-responsive plasmid pMB2, and acts on the plasma membrane in which it opens pores ... though it lacks sequence homology with bacteriocins AS-48. Bacteriocin uses components of the mannose phosphotransferase system ... Bacteriocin AS-48 is a cyclic peptide antibiotic produced by the eubacteria Enterococcus faecalis (Streptococcus faecalis) that ... González C, Langdon GM, Bruix M, Gálvez A, Valdivia E, Maqueda M, Rico M (October 2000). "Bacteriocin AS-48, a microbial cyclic ...

https://en.wikipedia.org/wiki/Bacteriocin_IId

Bacteriocin AS-48 is encoded by the pheromone-responsive plasmid pMB2, and acts on the plasma membrane in which it opens pores ... Bacteriocins for which disulfide bonds are the only modification to the peptide are Class II bacteriocins. One important and ... The class IIb bacteriocins (two-peptide bacteriocins) require two different peptides for activity. It includes the alpha ... Class II bacteriocins are a class of small peptides that inhibit the growth of various bacteria. Many Gram-positive bacteria ...

https://en.wikipedia.org/wiki/Class_II_bacteriocin

... large plasmids, small plasmids, chromosomal), molecular weight and chemistry (large protein, peptide, with/without sugar moiety ... Colicins are bacteriocins found in the Gram-negative E. coli. Similar bacteriocins (CLBs, colicin-like bacteriocins) occur in ... Wikimedia Commons has media related to Bacteriocin. Bagel Bacteriocin Database BACTIBASE Database Bacteriocins at the US ... They are the longest studied bacteriocins. They are a diverse group of bacteriocins and do not include all the bacteriocins ...

https://en.wikipedia.org/wiki/Bacteriocin

This sample did not contain any plasmids. The most extensively studied strain, L. rhamnosus GG, a gut isolate, consists of a ... bacteriocin production, pili production, the CRISPR-Cas system, the clustered regularly interspaced short palindromic repeat ( ... CRISPR) loci, and more than 100 transporter functions and mobile genetic elements such as phages, plasmid genes, and ...

https://en.wikipedia.org/wiki/Lacticaseibacillus_rhamnosus

... and Plasmid Profiles". Phytopathology. 88 (11): 1179-86. doi:10.1094/phyto.1998.88.11.1179. PMID 18944851. Bouarab, edited by ... Purification and Characterization of a Highly Specific Bacteriocin and Cloning of Its Structural Gene". Applied and ... Purification and Characterization of a Highly Specific Bacteriocin and Cloning of Its Structural Gene". Applied and ...

https://en.wikipedia.org/wiki/Streptomyces_ipomoeae

The two plasmids are pTiC58, responsible for the processes involved in virulence, and pAtC58, once dubbed the "cryptic" plasmid ... K84 produces a bacteriocin (agrocin 84) which is an antibiotic specific against related bacteria, including A. tumefaciens. ... To be virulent, the bacterium contains tumour-inducing plasmid (Ti plasmid or pTi), of 200 kbp, which contains the T-DNA and ... PMID 32915125.{{cite journal}}: CS1 maint: uses authors parameter (link) "At plasmid" when talking about related plasmids Smith ...

https://en.wikipedia.org/wiki/Agrobacterium_tumefaciens

Many lactobacilli also contain multiple plasmids. A recent study has revealed that plasmids encode the genes which are required ... The antibacterial and antifungal activity of lactobacilli relies on production of bacteriocins and low molecular weight ... Davray D, Deo D, Kulkarni R (November 2020). "Plasmids encode niche-specific traits in Lactobacillaceae". Microbial Genomics. 7 ... Lactobacilli produce bacteriocins to suppress pathogenic growth of certain bacteria, as well as lactic acid and H2O2 (hydrogen ...

https://en.wikipedia.org/wiki/Lactobacillus

This genome has one circular chromosome and two plasmids. The two plasmids found in the genome are pGD01 and pGD02 which ... produces a bacteriocin against Xanthomonas albilineans, a sugar cane pathogen". Research in Microbiology. 153 (6): 345-351. doi ...

https://en.wikipedia.org/wiki/Gluconacetobacter_diazotrophicus

Plasmid pBCE4810 shares homology with the B. anthracis virulence plasmid pXO1, which encodes the anthrax toxin. Periodontal ... Naclerio G, Ricca E, Sacco M, De Felice M (December 1993). "Antimicrobial activity of a newly identified bacteriocin of ... structure and location on a mega virulence plasmid related to Bacillus anthracis toxin plasmid pXO1". BMC Microbiology. 6: 20. ... It was shown independently by two research groups to be encoded on multiple plasmids: pCERE01 or pBCE4810. ...

https://en.wikipedia.org/wiki/Bacillus_cereus

These conjugative plasmids carry a number of genes that can be assembled and rearranged, which could then enable bacteria to ... Another research team was able to use bacteriocins, antimicrobial peptides and bacteriophages in the control of bacterial ... Bennett P. M. (2008). Plasmid encoded antibiotic resistance: acquisition and transfer of antibiotic resistance genes in ... Joerger R.D. (2003). "Alternatives to antibiotics: bacteriocins, antimicrobial peptides and bacteriophages". Poultry Science. ...

https://en.wikipedia.org/wiki/Antibiotic_use_in_livestock

Genes for bacteriocins may reside on plasmids.. Read more about this term in the Online Textbook:. Emerging Infectious Diseases ... Bacteriocin. Proteins produced by some bacteria, which inhibit the growth of other strains of the same organism or related ... A plasmid vector used to clone large fragments of DNA (average size of 150 kb) in E. coli. ... A plasmid vector used to clone large fragments of DNA (average size of 150 kb) in E. coli. ...

https://www.learner.org/glossary/constructing-social-reality/

https://www.learner.org/glossary/bivariate-data-and-analysis/

Potential Markets for Bacteriocins as Food Antibacterials. Bacteriocins such as colicins and salmocins are promising ... Plasmid Constructs. Constructs used were described in Schulz et al. (2015) or Schneider et al. (2018). ... Table 1. Bacteriocins versus antibiotics: major biological differences and market potential of bacteriocins. ... 2018). Plant-made Salmonella bacteriocins salmocins for control of Salmonella pathovars. Sci. Rep. 8:4078. doi: 10.1038/s41598- ...

https://www.frontiersin.org/articles/10.3389/fpls.2019.00437/full

Association of a 13.6-megadalton plasmid in Pediococcus pentosaceus with bacteriocin activity. Appl. Environ. Microbiol. 50: ...

https://www.atcc.org/products/43200

Research field: Plasmid biology and molecular biology of acidophilic biomining bacteria, microbial interactions, bacteriocin ...

http://www.sun.ac.za/english/faculty/science/microbiology/staff/academic-staff

Bacteriocins, a heterogeneous group of bioactive bacterial peptides or proteins, are ribosomally synthesized that inhibit or ... Genes encoding these bacteriocins can be present either on the plasmid or chromosome as a subset of three genes, bacteriocin ... Classification of Bacteriocins. Bacteriocins are classified into different groups (Table 2). Class I bacteriocins (lantibiotics ... Table 6: Potential applications of bacteriocin in various formulations sector.. Bacteriocin Toxicity. Bacteriocins have been ...

https://www.alliedacademies.org/articles/microbial-production-of-bacteriocins-and-its-applications-in-food-preservation-a-review-15940.html

The bacteriocin pediocin PA-1 has potential use as a food biopreservative, and understanding its effect on the commensal gut ... Effects of ingested (i) pediocin PA-1 producing Lactobacillus plantarum DDEN 11007, (ii) the plasmid cured pediocin negative L ... N2 - The bacteriocin pediocin PA-1 has potential use as a food biopreservative, and understanding its effect on the commensal ... AB - The bacteriocin pediocin PA-1 has potential use as a food biopreservative, and understanding its effect on the commensal ...

https://orbit.dtu.dk/en/publications/pediocin-pa-1-and-a-pediocin-producing-lactobacillus-plantarum-st

Plasmid-determined Bacteriocin Production by Rhizobium leguminosarum. A - Papers appearing in refereed journals ... Conjugative plasmids in Rhizobium. Abstracts ESF Workshop on Plasmid Mediated Gene Transfer, University of Birmingham, 12-15 ... Ecology of plasmid transfer and spread. in: Thomas, C. M. (ed.) The horizontal gene pool: bacterial plasmids and gene spread ... Abstracts 3rd ESF Workshop on Molecular Biology and Ecology of Plasmid-Mediated Gene Transfer, Cuenca, 12-16 September 1997 . ...

https://repository.rothamsted.ac.uk/item/87785/plant-genotype-micronutrient-fertilization-and-take-all-infection-influence-bacterial-populations-in-the-rhizosphere-of-wheat

Bacteriocin Plasmids. en_US. dc.subject.mesh. Colicins --biosynthesis. en_US. dc.subject.mesh. Drug Resistance, Microbial. en_ ... Sharma PL, Sharma KB, Prakash K. Colicin production & coexistence of Col+ plasmid with R-plasmid in Salmonellae. Indian Journal ... Colicin production & coexistence of Col+ plasmid with R-plasmid in Salmonellae.. en_US. ...

https://imsear.searo.who.int/handle/123456789/23533?mode=full