Fibroins
Silk
Nucleopolyhedrovirus
Larva
Sericins
Insect Hormones
Exocrine Glands
Molecular Sequence Data
Molting
Ecdysteroids
Metamorphosis, Biological
Amino Acid Sequence
Base Sequence
Diapause, Insect
Ascophyllum
Juvenile Hormones
Baculoviridae
Ecdysterone
Cloning, Molecular
Fatty Alcohols
Densovirus
Sequence Homology, Amino Acid
Moraceae
Sex Attractants
Bacillus thuringiensis
Pheromones
DNA, Complementary
Neuropeptides
Heart Valve Prosthesis
Insects
Hemolysin Proteins
Expressed Sequence Tags
Sequence Analysis, DNA
Whale, Killer
Antigens, CD13
Endotoxins
Chromosomes, Artificial, Bacterial
Viral Structural Proteins
Tribolium
Digestive System
Chorion
Genetic Enhancement
Echo-Planar Imaging
Species Specificity
Open Reading Frames
Gene Expression Regulation, Developmental
Laboratory Chemicals
Catechol Oxidase
Corpora Allata
Fractional Precipitation
Spodoptera
DNA Primers
Sex Chromosomes
Reoviridae
Tymoviridae
Gene Library
Heavy Ions
Transcription, Genetic
Sequence Homology, Nucleic Acid
Benzoic Acid
Cytomegalovirus Infections
Arthropod Antennae
Bacopa
Manduca
Electrophoresis, Polyacrylamide Gel
DNA
beta-N-Acetyl-Galactosaminidase
Animals, Genetically Modified
Gene Expression Profiling
Drosophila melanogaster
Inclusion Bodies, Viral
Random Amplified Polymorphic DNA Technique
Receptors, Odorant
Sf9 Cells
Chymotrypsin
Conserved Sequence
RNA, Messenger
DNA Transposable Elements
RNA, Transfer
Formycins
Drosophila Proteins
Life Cycle Stages
POU Domain Factors
Genetic Vectors
Malpighian Tubules
Reverse Transcriptase Polymerase Chain Reaction
Embryo, Nonmammalian
Chromatography, Ion Exchange
Tissue Distribution
Bacterial Toxins
Introns
Gene Expression Regulation
Promoter Regions, Genetic
Diptera
Antimicrobial Cationic Peptides
Melanins
Drosophila
Asclepias
Spiders
Genes
Endocrine Glands
Pest Control, Biological
1-Deoxynojirimycin
Repetitive Sequences, Nucleic Acid
Chromosome Mapping
Gene Expression
Butterflies
Restriction Mapping
Fushi Tarazu Transcription Factors
Salivary Glands
Genes, Homeobox
Gene Expression Regulation, Viral
Escherichia coli
Receptors, Steroid
Carrier Proteins
Biotechnology
Mutation
Green Fluorescent Proteins
Amplified Fragment Length Polymorphism Analysis
Evolution, Molecular
Recombinant Fusion Proteins
Hydrogen-Ion Concentration
Synteny
Nucleic Acid Conformation
Lethal Dose 50
Bees
Trypsin Inhibitors
DNA-Binding Proteins
Gene Knockout Techniques
Amino Acyl-tRNA Synthetases
Breeding
DNA Restriction Enzymes
Monophenol Monooxygenase
Chromatography, High Pressure Liquid
RNA
Peptides
Multigene Family
Gene Deletion
Anesthetics, General
Substrate Specificity
Receptors, Cell Surface
Transcription Factors
Blotting, Northern
Endonucleases
Genetic Markers
Olfactory Receptor Neurons
Alternative Splicing
Genetic Linkage
Aneurysm, False
Organ Specificity
Oogenesis
Cell Nucleus
Virus Replication
Chromosomes
Architecture as Topic
Exons
DNA Probes
Genome
Binding Sites
Circular Dichroism
Viral Plaque Assay
Plasmids
The biosynthesis of transfer RNA in insects. II. Isolation of transfer RNA precursors from the posterior silk gland of Bombyx mori. (1/1272)
The occurrence of precursors to tRNA in the post-polysomal fraction of the posterior silk gland of Bombyx mori was demonstrated by pulse-chase labeling and DNA-RNA hybridization competition experiments. These precursors had molecular sizes ranging from 4S to 5S on polyacrylamide gel electrophoresis. Analysis of the incorporation of the methyl group from [methyl-14C]methionine revealed that a radioactive peak on polyacrylamide gel appeared in the 4.5S region during brief labeling. This suggested that some methylation occurred at the 4.5S precursor step. (+info)Comparison of Bombyx mori and Helicoverpa armigera cytoplasmic actin genes provides clues to the evolution of actin genes in insects. (2/1272)
The cytoplasmic actin genes BmA3 and BmA4 of Bombyx mori were found clustered in a single genomic clone in the same orientation. As a similar clustering of the two cytoplasmic actin genes Ha3a and Ha3b also occurs in another lepidopteran, Helicoverpa armigera, we analyzed the sequence of the pair of genes from each species. Due to the high conservation of cytoplasmic actins, the coding sequence of the four genes was easily aligned, allowing the detection of similarities in noncoding exon and intron sequences as well as in flanking sequences. All four genes exhibited a conserved intron inserted in codon 117, an original position not encountered in other species. It can thus be postulated that all of these genes derived from a common ancestral gene carrying this intron after a single event of insertion. The comparison of the four genes revealed that the genes of B. mori and H. armigera are related in two different ways: the coding sequence and the intron that interrupts it are more similar between paralogous genes within each species than between orthologous genes of the two species. In contrast, the other (noncoding) regions exhibited the greatest similarity between a gene of one species and a gene of the other species, defining two pairs of orthologous genes, BmA3 and HaA3a on one hand and BmA4 and HaA3b on the other. However, in each species, the very high similarities of the coding sequence and of the single intron that interrupts it strongly suggest that gene conversion events have homogenized this part of the sequence. As the divergence of the B. mori genes was higher than that of the H. armigera genes, we postulated that the gene conversion occurred earlier in the B. mori lineage. This leads us to hypothesize that gene conversion could also be responsible for the original transfer of the common intron to the second gene copy before the divergence of the B. mori and H. armigera lineages. (+info)Active transport of calcium across the isolated midgut of Hyalophora cecropia. (3/1272)
1. The net flux of 45Ca from lumen to blood side across the isolated and short-circuited Cecropia midgut was 1-9 +/- 0-2 muequiv. cm-2h-1 in 8 mM Ca and the flux ratio was as high as 56 to 1. 2. The calcium influx was depressed by anoxia; 73% after 30 min. 3. The kinetics of Ca transport were anomalous; the apparent Km varied with Ca concentration from less than 0-2 to greater than 5-6 mM Ca and the apparent Vmax varied from less than 1-3 to greater than 3-3 muequiv. cm-2h-1. 4. The calcium influx showed a delay before the tracer steady state was attained, indicating the existence in the transport route of a calcium pool equivalent to 5-7 muequiv/g. wet weight of midgut tissue. 5 High calcium (16 mM) depressed the short-circuit current and potassium transport from blood to lumen side across the midgut. 6. Calcium depressed magnesium transport, from lumen to blood side across the midgut, and magnesium depressed the calcium transport. 7. Ca transport by the midgut does not regulate the Ca level in the haemolymph in vivo; it merely aids the diffusion of calcium down its electrochemical gradient. However, Ca transport may assist the uptake of the nutrients from the midgut contents. (+info)Prophenoloxidase-activating enzyme of the silkworm, Bombyx mori. Purification, characterization, and cDNA cloning. (4/1272)
Prophenoloxidase-activating enzyme (PPAE) was purified to homogeneity as judged by SDS-polyacrylamide gel electrophoresis from larval cuticles of the silkworm, Bombyx mori. The purified PPAE preparation was shown to be a mixture of the isozymes of PPAE (PPAE-I and PPAE-II), which were eluted at different retention times in reversed-phase high performance liquid chromatography. PPAE-I and PPAE-II seemed to be post translationally modified isozymes and/or allelic variants. Both PPAE isozymes were proteins composed of two polypeptides (heavy and light chains) that are linked by disulfide linkage(s) and glycosylated serine proteases. The results of cDNA cloning, peptide mapping, and amino acid sequencing of PPAE revealed that PPAE is synthesized as prepro-PPAE with 441 amino acid residues and is activated from pro-PPAE by cleavage of a peptide bond between Lys152 and Ile153. The homology search showed 36.9% identity of PPAE to easter, which is a serine protease involved in dorso-ventral pattern formation in the Drosophila embryo, and indicated the presence of two consecutive clip-like domains in the light chain. A single copy of the PPAE gene was suggested to be present in the silkworm genome. In the fifth instar larvae, PPAE transcripts were detected in the integument, hemocytes, and salivary glands but not in the fat body or mid gut. A polypeptide cross-reactive to mono-specific anti-PPAE/IgG was transiently detected in the extract of eggs between 1 and 3 h after they were laid. (+info)Gene targeting in the silkworm by use of a baculovirus. (5/1272)
The Bombyx mori fibroin light (L)-chain gene was cloned and the green fluorescent protein (GFP) gene inserted into exon 7. The chimeric L-chain-GFP gene was used to replace the polyhedrin gene of Autographa californica nucleopolyhedrovirus (AcNPV). This recombinant virus was used to target the L-chain-GFP gene to the L-chain region of the silkworm genome. Female moths were infected with the recombinant virus and then mated with normal male moths. Genomic DNA from their progenies was screened for the desired targeting event. This analysis showed that the chimeric gene had integrated into the L-chain gene on the genome by homologous recombination and was stably transmitted through generations. The chimeric gene was expressed in the posterior silk gland, and the gene product was spun into the cocoon layer. (+info)Characterization of the 25K FP gene of the baculovirus Bombyx mori nucleopolyhedrovirus: implications for post-mortem host degradation. (6/1272)
Mutagenesis experiments on the baculovirus Bombyx mori nucleopolyhedrovirus (BmNPV) using 5-bromo-2'-deoxyuridine generated five mutants with a 'few polyhedra' (FP) phenotype. Sequence analysis of the 25K gene homologue of the BmNPV FP mutants revealed nucleotide substitutions in the coding region. Rescue experiments indicated that the FP phenotype of the BmNPV mutants resulted from mutations in the 25K coding region. Effects of infection by these FP mutants were analysed following injection of the viruses into silkworm (B. mori) larvae. Compared to infection with wild-type virus, infection with each FP mutant resulted in reduced host degradation (liquefaction). The degree to which liquefaction was blocked corresponded to the degree of functional disruption of the 25K gene product and to the extent to which polyhedron production was reduced. Electron microscopy revealed that (1) polyhedron production was reduced, (2) very few virions were occluded and those that were lacked envelopes, and (3) the basal lamina of fat-body tissue was not destroyed by infection and accumulations of virions occurred along the membrane. Typical NPV-induced liquefaction was observed following infection with a polyhedrin deletion mutant, indicating that host degradation was not related to polyhedron production. These results suggest that (1) the 25K gene product is involved in the host degradation process caused by virus infection and (2) the FP phenotype is an indirect result of disruption of the 25K gene; activation or suppression of a specific host or viral gene related to tissue degradation and polyhedron formation may be involved. (+info)Studies on silk fibroin of Bombyx mori. I. Fractionation of fibroin prepared from the posterior silk gland. (7/1272)
1. Fractionation of fibroin prepared from the posterior silk glands of Bombyx mori was carried out. After carboxymethylation of the fibroin, it was fractionated by ammonium sulfate precipitation, Sephadex G-200 gel filtration and DEAE-cellulose column chromatography. 2. The fibroin was composed of at least two protein groups of large molecular size and three or four components of small molecular size, and, in addition, a mixture of proteins ranging in size from about 25,000 to more than 100,000 daltons with almost the same amino acid compositions. 3. The latter proteins contained about 48% glycine, 32% alanine, 11% serine, 4.5% tyrosine, 2% valine, and other minor amino acids. The sum of these main five amino acids accounts for more than 97% of the total amino acid residues of the proteins. 4. The present results indicate major heterogeneity in the molecular size of posterior silk gland fibroin, and, in addition, suggest the possibility of repeating sequences with relatively simple amino acid compositions in major peptide chains of fibroin. (+info)A TATA element is required for tRNA promoter activity and confers TATA-binding protein responsiveness in Drosophila Schneider-2 cells. (8/1272)
In contrast to yeast and mammalian systems, which depend principally on internal promoter elements for tRNA gene transcription, insect systems require additional upstream sequences. To understand the function of the upstream sequences, we have asked whether the Bombyx mori tRNACAla and tRNASGAla genes, which are absolutely dependent on these sequences in vitro, also require them for transcription in vivo. We introduced wild-type and mutant versions of the Bombyx tRNAAla genes into Drosophila Schneider-2 cells and found that the tRNACAla gene is efficiently transcribed and that its transcription depends strongly on the distal segment of its upstream promoter. In contrast, the tRNASGAla gene is inefficiently transcribed, and this inefficiency results from lack of a specific sequence within the distal tRNACAla upstream promoter. This sequence, 5'-TTTATAT-3', is sufficient to increase the activity of the tRNASGAla promoter to that of the tRNACAla promoter. Moreover, promoters containing the 5'-TTTATAT-3' element are stimulated by increased levels of cellular TATA-binding protein. Together these results indicate that, in insect cells, a TATA-like element is specifically required to form functional TATA-binding protein-containing complexes that promote efficient transcription of tRNA genes. (+info)CMV infections are more common in people with weakened immune systems, such as those with HIV/AIDS, cancer, or taking immunosuppressive drugs after an organ transplant. In these individuals, CMV can cause severe and life-threatening complications, such as pneumonia, retinitis (inflammation of the retina), and gastrointestinal disease.
In healthy individuals, CMV infections are usually mild and may not cause any symptoms at all. However, in some cases, CMV can cause a mononucleosis-like illness with fever, fatigue, and swollen lymph nodes.
CMV infections are diagnosed through a combination of physical examination, blood tests, and imaging studies such as CT scans or MRI. Treatment is generally not necessary for mild cases, but may include antiviral medications for more severe infections. Prevention strategies include avoiding close contact with individuals who have CMV, practicing good hygiene, and considering immunoprophylaxis (prevention of infection through the use of immune globulin) for high-risk individuals.
Overall, while CMV infections can be serious and life-threatening, they are relatively rare in healthy individuals and can often be treated effectively with supportive care and antiviral medications.
Example sentences for 'Aneurysm, False'
The patient was diagnosed with a false aneurysm after experiencing sudden severe pain in his leg following a fall.
The surgeon treated the false aneurysm by inserting a catheter into the affected blood vessel and using it to deliver a special coil that would seal off the dilated area.
1. Neuropathy (nerve damage): Lead, mercury, and arsenic are known to cause neuropathy, which can result in numbness, tingling, and weakness in the hands and feet.
2. Cognitive impairment: Exposure to heavy metals such as lead, mercury, and methylmercury has been linked to decreased IQ and cognitive function, memory loss, and difficulty with concentration and attention.
3. Neurodegeneration: Some heavy metals, such as aluminum, have been implicated in the development of neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis (ALS).
4. Seizures: Exposure to heavy metals such as lead, mercury, and arsenic can cause seizures in some individuals.
5. Neuroinflammation: Heavy metal exposure can trigger an inflammatory response in the nervous system, leading to neuroinflammation and further damage to nerve cells.
6. Oxidative stress: Heavy metals can generate reactive oxygen species (ROS), which can damage cellular components and contribute to oxidative stress.
7. Neurotransmitter dysfunction: Exposure to heavy metals can disrupt the normal functioning of neurotransmitters, leading to changes in mood, behavior, and cognitive function.
8. Motor neuron damage: Some heavy metals, such as lead and mercury, have been shown to damage motor neurons, leading to muscle weakness and wasting.
9. Developmental neurotoxicity: Prenatal and early childhood exposure to heavy metals can have long-lasting effects on brain development and has been linked to an increased risk of neurodevelopmental disorders such as ADHD, autism, and learning disabilities.
It's important to note that the effects of heavy metal poisoning on the nervous system can be subtle and may not be immediately apparent. Chronic exposure to low levels of heavy metals can accumulate over time and lead to significant neurological damage. If you suspect that you or someone you know has been exposed to heavy metals, it is important to seek medical attention as soon as possible.
Bombyx
Bombyx rotundapex
Bombyx lemeepauli
Bombyx hybrid
Bombyx horsfieldi
Bombyx mandarina
Bombyx shini
Bombyx mori
Bombyx huttoni
Bombyx incomposita
Bombyx second hybrid
Dryocampa rubicunda
Tamir Muskat
Genetically modified animal
Genetically modified organism
Avshalom Pollak
Pachypasa otus
RNA interference
Coa vestis
6,7-dihydropteridine reductase
Sperm heteromorphism
Silk
List of sequenced animal genomes
Stazione Bacologica Sperimentale
J. B. S. Haldane
Moth
Dicallomera
Mir-277 microRNA precursor family
Slow bee paralysis virus
Sepiapterin deaminase
Bombyx mori - Taxonomy - NCBI
The complete sequence of mag, a new retrotransposon in Bombyx mori - PubMed
Sea Grass | Bombyx Color Harmonies
MedlinePlus - Search Results for: ANAS PLATYRHYNCHOS FEATHER OR ANSER ANSER FEATHER OR BOMBYX MORI FIBER OR BOS TAURUS SKIN OR...
High-quality genome assembly of the silkworm, Bombyx mori - Dimensions
Triplicate Alternative Splicings that Ptoduce Multiple Variants of the PERIOD Protein in the Silk Moth Bombyx mori by Deletion...
Domain assignment for Bmb000323 from Bombyx mori
Subjects: Bombyx -- microbiology - Digital Collections - National Library of Medicine Search Results
Gene: LOC101743819 - Summary - Bombyx mori gca014905235v2 - Ensembl Genomes 56
Matagot/Bombyx
Marcia Ball - BOMBYX
Growth promoting effect of black gram and ground nut seed powder on Bombyx mori | International Journal of Current Research
Facebook Bombyx Archives - RobetNews
Marketing Archives | Bombyx PLM
Matevž Jerman - Rain (Bombyx Lori)...
Edible Silkworm Pupae - Bombyx Mori
Willi Carlisle Tickets at BOMBYX Center for Arts & Equity in Northampton by DSP Shows | Tixr
i|Bombyx mori ß-1,3-Glucan Recognition Protein 4|/i| (|i|BmßGRP4|/i|) Could Inhibit the Proliferation of |i|B. mori|/i|...
Silkislæða / Silk scarf - BOMBYX Jurtalitun / Eco Dyeing
DailyMed - Search Results for 895470
Silkworm Pupae (Bombyx Mori) - JR Unique Foods Ltd
20/2 Bombyx Silk - Ariel's Voice - Jane Stafford Textiles
In vivo and in vitro interactions of the Bombyx mori chymotrypsin inhibitor b1 with Escherichia coli - Fingerprint -...
Positive Tested Species Reactivity: Bombyx-mori, Rodent, Recommended Applications: ELISA, Immunoprecipitation
DailyMed - Search Results for Non-Standardized Insect Allergenic Extract
IMSEAR at SEARO: RH-5992--an ecdysone agonist on model system of the silkworm Bombyx mori.
Hand Dyed Cultivated Bombyx Silk Fiber for Spinning or Felting in Grey
- The Tin Thimble
Larvae4
- The effect of ecdysone agonist RH-5992 on larval period, larval weight, silk gland weight and haemolymph protein profile were examined in the model organism, the larvae of silkworm, Bombyx mori. (who.int)
- The recombinant protein, purified by affinity chromatography, showed both exo- and endo-chitinase activities and produced perforations on the peritrophic membrane (PM) of Bombyx mori larvae which increased in number and in size, in a dose-dependent manner. (unimi.it)
- AcMNPV Chi A protein disrupts the peritrophic membrane and alters midgut physiology of Bombyx mori larvae / R. Rao, L. Fiandra, B. Giordana, M. de Eguileor, T. Congiu, N. Burlini, S. Arciello, G. Corrado, F. Pennacchio. (unimi.it)
- Expression of foreign genes in Bombyx mori larvae using baculovirus vectors. (nih.gov)
Silkworm Pupae2
- Edible Silkworm Pupae (Bombyx Mori), seasoned and ready-to-eat. (bizarrefood.com)
- Silkworm pupae oil is extracted from the larva of the bombyx mori moth using a cold press process. (bizarrefood.com)
Silk3
- Bombyx silk is commonly referred to as "Cultivated" or "Mulberry" silk. (outbackfibers.com)
- 100% bombyx silk. (janestaffordtextiles.com)
- HONG KONG -July 18, 2019 - Bombyx, a China-based organic silk manufacturer, has announced a larger than expected silk cocoon harvest as a result of its commitment to regenerative agriculture technology. (textileworldasia.com)
20171
- Founded in 2017 by PFGHL Group, Bombyx creates environmentally conscious textiles through historically sustainable and responsible practices. (textileworldasia.com)
Silkworms1
- Dehydrated Silkworms (Bombyx Mori) 500g Silkworms have an awful lot going for them. (bizarrefood.com)
Mulberry3
- The results of the present study recommend supplementation of black gram and ground nut with mulberry leaf for feeding Bombyx mori. (journalcra.com)
- In order to produce the highest quality cocoon for their customers, Bombyx uses organic fertilizer, releasing fewer carbon emissions and restoring the vitality of the soil, allowing farmers to resume the planting of mulberry trees and prepare for the next harvest quicker and more efficiently. (textileworldasia.com)
- The family contains a single species, Bombyx mori from the Greek for silkworm + mulberry tree (on which it feeds). (nih.gov)
Protein2
- Bombyx mori ß-1,3-Glucan Recognition Protein 4 ( BmßGRP4 ) Could Inhibit the Proliferation of B. mori Nucleopolyhedrovirus through Promoting Apoptosis. (bvsalud.org)
- In this study, we identified a Bombyx mori ß-1,3- glucan recognition protein gene named BmßGRP4, which showed differential expression, from a previous transcriptome database. (bvsalud.org)
Mori6
- Identification and characterization of a serine racemase in the silkworm Bombyx mori. (bvsalud.org)
- In the silkworm Bombyx mori , d- serine is negligible during the larval stage but increases markedly during the pupal stage, reaching 50% of the total free serine . (bvsalud.org)
- 14. Expansion of CRISPR targeting sites in Bombyx mori. (nih.gov)
- influenza delle radiazioni mitogenetiche sulle uovo del Bombyx mori. (nih.gov)
- Expression of foreign genes in Bombyx mori larvae using baculovirus vectors. (nih.gov)
- The family contains a single species, Bombyx mori from the Greek for silkworm + mulberry tree (on which it feeds). (nih.gov)