Abstract:
:The 12 incD repeats in the F plasmid each contain about 60 bits of information, which is three times the amount of conservation that a single protein would need to distinguish the repeats from the rest of the Escherichia coli genome. This is the first reported discovery of a case of threefold excess information, and it implies that at least three proteins bind independently to the repeats. In support of this observation, other workers have shown that three polypeptides bind to this region, but only one, SopB, is known to bind independently of other factors. Identification of the other two proteins should help us to understand the mechanism of plasmid partitioning during cell division.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Herman ND,Schneider TDdoi
10.1128/jb.174.11.3558-3560.1992keywords:
subject
Has Abstractpub_date
1992-06-01 00:00:00pages
3558-60issue
11eissn
0021-9193issn
1098-5530journal_volume
174pub_type
杂志文章abstract::Lactobacillus plantarum is a lactic acid bacterium (LAB) species commonly used as a probiotic. We have sequenced the genome of Lactobacillus plantarum JDM1, which is a Chinese commercial LAB with several probiotic functions, using a GS 20 system. We recommend that each commercial probiotic strain should undergo comple...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00587-09
更新日期:2009-08-01 00:00:00
abstract::The mutations of eight chemotaxis-deficient strains of Salmonella typhimurium, including five new mutants in strain LT2, were mapped by P22 transduction in relation to various fla mot deletions in S. abortus-equi. Seven recessive che mutations mapped between motB and flaC: three, all nontumbling, the che region I, adj...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.128.3.754-765.1976
更新日期:1976-12-01 00:00:00
abstract::Acetate kinase catalyzes the reversible phosphorylation of acetate (CH3COO- + ATP<-->CH3CO2PO3(2-) + ADP). A mechanism which involves a covalent phosphoryl-enzyme intermediate has been proposed, and chemical modification studies of the enzyme from Escherichia coli indicate an unspecified glutamate residue is phosphory...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.5.1129-1134.1998
更新日期:1998-03-01 00:00:00
abstract::Genes from Bacillus subtilis predicted to encode a phosphate-specific transport (Pst) system were shown by mutation to affect high-affinity Pi uptake but not arsenate resistance or phosphate (Pho) regulation. The transcription start of the promoter upstream of the pstS gene was defined by primer extension. The promote...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.8.2534-2539.1997
更新日期:1997-04-01 00:00:00
abstract::Multiple promoters drive the expression of the principal cell division gene, ftsZ, in bacterial systems. Primer extension analysis of total RNA from Mycobacterium tuberculosis and a Mycobacterium smegmatis transformant containing 1.117 kb of the upstream region of M. tuberculosis ftsZ and promoter fusion studies ident...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.7.2540-2550.2005
更新日期:2005-04-01 00:00:00
abstract::Shafia, Fred (University of Nebraska, Lincoln), and T. L. Thompson. Isolation and preliminary characterization of bacteriophage phimu-4. J. Bacteriol. 87:999-1002. 1964.-Bacteriophage phimu-4 was isolated from lysogenic Bacillus stearothermophilus NU strain 4, and was propagated in strain 10 of the same species. The p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.87.5.999-1002.1964
更新日期:1964-05-01 00:00:00
abstract::The alkaline phosphatase (orthophosphoric monoester phosphydrolase, EC 3.1.3.1) of Bacillus licheniformis MC14 was studied in an attempt to determine the number of subunits contained in the 120,000-molecular-weight native enzyme. Two moles of arginine was liberated per mole of native enzyme by carboxypeptidases A and ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.128.2.651-657.1976
更新日期:1976-11-01 00:00:00
abstract::Cholera, a severe diarrheal disease, is caused by ingestion of the gram-negative bacterium Vibrio cholerae. Expression of V. cholerae virulence factors is highly regulated at the transcriptional and posttranscriptional levels by a complex network of proteins and small noncoding RNAs. The direct activator of transcript...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00512-08
更新日期:2008-12-01 00:00:00
abstract::The electron transport system of Acinetobacter sp. HO1-N was studied to determine the specific cytochromes and to measure changes in the composition of the respiratory system due to growth in various concentrations of oxygen or types of growth substrates. Spectrophotometric analysis revealed that the quantity and type...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.142.3.859-868.1980
更新日期:1980-06-01 00:00:00
abstract::Glucose-6-phosphate dehydrogenase was partially purified from both glucose-grown and iron-glucose-grown Thiobacillus ferrooxidans. The enzyme possesses a dual nucleotide specificity for either nicotinamide adenine dinucleotide phosphate (NADP) or nicotinamide adenine dinucleotide (NAD) and has a molecular weight of 11...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.108.1.343-352.1971
更新日期:1971-10-01 00:00:00
abstract::L-Glutamate decarboxylase (GAD) activity of Clostridium perfringens (ATCC 8009) cells grown in various culture conditions was investigated. Remarkable variations of GAD level occur during the growth cycle in thioglycollate broth. These changes are affected by the pH of the culture medium. Addition of alkali to the cul...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.123.3.1115-1123.1975
更新日期:1975-09-01 00:00:00
abstract::A computer program has been designed to study behavior in populations of Spirochaeta aurantia cells, and this program has been used to analyze changes in behavior in response to chemoattractants. Three kinds of behavior were distinguished: smooth swimming, flexing, and reversals in direction of swimming after a short ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.4.1768-1774.1988
更新日期:1988-04-01 00:00:00
abstract::The sog gene of the IncI alpha group plasmid ColIb is known to encode a DNA primase that can substitute for defective host primase in dnaG mutants of Escherichia coli during discontinuous DNA replication. The biological significance of this enzyme was investigated by using sog mutants, constructed from a derivative of...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:
更新日期:1982-12-01 00:00:00
abstract::Utilization of heme as an iron source by Bradyrhizobium japonicum involves induction of the outer membrane heme receptor gene hmuR and other genes within the heme utilization locus. Here, we discovered the hmuP gene located upstream of hmuR and transcribed divergently from it along with hmuTUV. hmuP encodes a small pr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00071-12
更新日期:2012-06-01 00:00:00
abstract::Insertion of Tn7 in nine independently derived isolates occurred in a single small region of the Caulobacter crescentus chromosome, suggesting that Tn7 insertion occurs at or near a single site. The order of markers in this region of the Caulobacter chromosome was shown to be flaA-argG-Tn7. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.2.1056-1058.1982
更新日期:1982-08-01 00:00:00
abstract::In anaerobic cultures of Mucor rouxii, morphogenesis was strongly dependent on hexose concentration as well as pCO(2). At low levels of hexose or CO(2), or both, hyphal development occurred; at high levels, the fungus developed as yeast cells. Other dimorphic strains of Mucor responded similarly to hexose and CO(2) bu...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.96.5.1586-1594.1968
更新日期:1968-11-01 00:00:00
abstract::Binding of uncharged tRNA to the nascent transcript promotes readthrough of a leader region transcription termination signal in genes regulated by the T box transcription antitermination mechanism. Each gene in the T box family responds independently to its cognate tRNA, with specificity determined by base pairing of ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.186.16.5392-5399.2004
更新日期:2004-08-01 00:00:00
abstract::Hydrolytic deamination of cytosine to uracil in DNA is increased in organisms adapted to high temperatures. Hitherto, the uracil base excision repair (BER) pathway has only been described in two archaeons, the crenarchaeon Pyrobaculum aerophilum and the euryarchaeon Archaeoglobus fulgidus, which are hyperthermophiles ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00233-11
更新日期:2011-09-01 00:00:00
abstract::Clostridium perfringens food poisoning is caused by type A isolates carrying a chromosomal enterotoxin (cpe) gene (C-cpe), while C. perfringens-associated non-food-borne gastrointestinal (GI) diseases are caused by isolates carrying a plasmid-borne cpe gene (P-cpe). C. perfringens spores are thought to be the importan...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01748-07
更新日期:2008-02-01 00:00:00
abstract::Serpulina hyodysenteriae, the etiologic agent of swine dysentery, contains complex periplasmic flagella which are composed of multiple class A and class B polypeptides. To examine the role these proteins play in flagellar synthesis, structure, and function and to develop strains which may provide insight into the impo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.20.5959-5970.1995
更新日期:1995-10-01 00:00:00
abstract::The mechanisms by which hyperthermophilic Archaea, such as "Pyrococcus abyssi" and Pyrococcus furiosus, survive high doses of ionizing gamma irradiation are not thoroughly elucidated. Following gamma-ray irradiation at 2,500 Gy, the restoration of "P. abyssi" chromosomes took place within chromosome fragmentation. DNA...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.13.3958-3961.2003
更新日期:2003-07-01 00:00:00
abstract::Certain gram-negative pathogens are known to control virulence gene expression through cell-cell communication via small diffusible signal molecules termed autoinducers. This intercellular signal transduction mechanism termed quorum sensing depends on the interaction of an N-acylhomoserine lactone (AHL) auto-inducer m...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.9.3004-3012.1997
更新日期:1997-05-01 00:00:00
abstract::Siderophore-mediated iron transport in Pseudomonas aeruginosa is dependent upon the cytoplasmic membrane-associated TonB1 energy coupling protein for activity. To assess the functional significance of the various regions of this molecule and to identify functionally important residues, the tonB1 gene was subjected to ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.6.1503-1513.2002
更新日期:2002-03-01 00:00:00
abstract::The imp genes, responsible for the UV protection and mutation effects of the I incompatibility group plasmid TP110, have been cloned into vector plasmids, and their products have been analyzed. The genetic information required for expression of these properties was carried in a continuous DNA sequence of approximately...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.168.1.251-256.1986
更新日期:1986-10-01 00:00:00
abstract::The oral bacterium Streptococcus salivarius takes up lactose via a transporter called LacS that shares 95% identity with the LacS from Streptococcus thermophilus, a phylogenetically closely related organism. S. thermophilus releases galactose into the medium during growth on lactose. Expulsion of galactose is mediated...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.23.6764-6772.2003
更新日期:2003-12-01 00:00:00
abstract::The inability of Micrococcus sodonensis to grow on glucose as the sole source of carbon and energy was investigated. Estimation of pathways of glucose catabolism indicated that both the glycolytic and hexose monophosphate pathways are present in this organism. Comparative studies with Escherichia coli demonstrated tha...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.93.6.1839-1846.1967
更新日期:1967-06-01 00:00:00
abstract:UNLABELLED:Neisseria meningitidis, an exclusively human pathogen and the leading cause of bacterial meningitis, must adapt to different host niches during human infection. N. meningitidis can utilize a restricted range of carbon sources, including lactate, glucose, and pyruvate, whose concentrations vary in host niches...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00659-15
更新日期:2015-12-07 00:00:00
abstract::Most motile bacteria are able to bias their movement towards more favorable environments or to escape from obnoxious substances by a process called chemotaxis. Chemotaxis depends on a chemosensory system that is able to sense specific environmental signals and generate a behavioral response. Typically, the signal is t...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00793-17
更新日期:2018-03-12 00:00:00
abstract::Enzymes of tyrosine biosynthesis (prephenate dehydrogenase and arogenate dehydrogenase) were characterized in 90 species currently classified within the genera Pseudomonas, Xanthomonas, and Alcaligenes. Variation in cofactor specificity and regulatory properties of the dehydrogenase proteins allowed the separation of ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.144.1.247-257.1980
更新日期:1980-10-01 00:00:00
abstract::Leucine and isoleucine-valine loci have been mapped in Rhizobium japonicum. Transformation analysis suggests a common pathway for isoleucine-valine biosynthesis. Three-point reciprocal crosses indicated that all the leucine loci are not genetically linked. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.126.2.997-998.1976
更新日期:1976-05-01 00:00:00