Insertional inactivation of trpC in cloned Bacillus trp segments: evidence for a polar effect on trpF.

abstract：:Purified suspensions of Chlamydia psittaci were prepared from L cells. Thin sections of intact elementary bodies and intact developmental reticulate bodies and of their purified envelopes were observed by electron microscopy. In both intact organisms and partially purified envelopes, two membranous structures, each ap...

journal_title：Journal of bacteriology

authors： Tamura A,Matsumoto A,Manire GP,Higashi N

更新日期：1971-01-01 00:00:00

abstract：:Expression of a circadian rhythm of conidiation in Neurospora crassa is enhanced in cultures grown on medium that is neutral or deficient in biotin. ...

journal_title：Journal of bacteriology

authors： West DJ

更新日期：1975-07-01 00:00:00

abstract：:In order to study the Salmonella typhimurium cobalamin biosynthetic pathway, the S. typhimurium cob operon was isolated and cloned into Escherichia coli. This approach has given the new host of the cob operon the ability to make cobalamins de novo, an ability that had probably been lost by this organism. In total, 20 ...

journal_title：Journal of bacteriology

authors： Raux E,Lanois A,Levillayer F,Warren MJ,Brody E,Rambach A,Thermes C

更新日期：1996-02-01 00:00:00

abstract：:Galactose-negative mutants of the group H Streptococcus strain Challis were obtained by treatment with nitrosoguanidine. Enzyme assays of extracts of these mutants revealed that 12 of the mutants were lacking one of the enzymes of the Leloir pathway. Thus, the Leloir pathway is the major means of galactose metabolism ...

journal_title：Journal of bacteriology

authors： Luginbuhl GH,Gooder H

更新日期：1972-02-01 00:00:00

abstract：:We demonstrate that the expression of hem genes in Rhodobacter capsulatus is transcriptionally repressed in response to the exogenous addition of heme. A high-copy suppressor screen for regulators of hem gene expression resulted in the identification of an LysR-type transcriptional regulator, called HbrL, that regulat...

journal_title：Journal of bacteriology

authors： Smart JL,Bauer CE

更新日期：2006-02-01 00:00:00

abstract：:Transcription-coupled repair (TCR) is a cellular process by which some forms of DNA damage are repaired more rapidly from transcribed strands of active genes than from nontranscribed strands or the overall genome. In humans, the TCR coupling factor, CSB, plays a critical role in restoring transcription following both ...

journal_title：Journal of bacteriology

authors： Schalow BJ,Courcelle CT,Courcelle J

更新日期：2012-05-01 00:00:00

abstract：:Multitrichously polar flagellated mutants were isolated from a monotrichously flagellated strain of Pseudomonas aeruginosa. The ability of the mutant cells to swarm in semisolid media at given gel strengths was increased by the multiflagellation. Observations of the mutant cells by electron microscopy revealed that th...

journal_title：Journal of bacteriology

authors： Suzuki T,Iino T

更新日期：1980-09-01 00:00:00

abstract：:The mode of synthesis and the regulation of fructose-1,6-bisphosphatase (Fbpase), a gluconeogenic enzyme, and phosphofructokinase (PFK), a glycolytic enzyme, were investigated in Saccharomyces cerevisiae after growth in the presence of different concentrations of glucose or various gluconeogenic carbon sources. The ac...

journal_title：Journal of bacteriology

authors： Foy JJ,Bhattacharjee JK

更新日期：1978-11-01 00:00:00

abstract：:Cerulenin is a fungal mycotoxin that potently inhibits fatty acid synthesis by covalent modification of the active site thiol of the chain-elongation subtypes of beta-ketoacyl-acyl carrier protein (ACP) synthases. The Bacillus subtilis fabF (yjaY) gene (fabF(b)) encodes an enzyme that catalyzes the condensation of mal...

journal_title：Journal of bacteriology

authors： Schujman GE,Choi KH,Altabe S,Rock CO,de Mendoza D

更新日期：2001-05-01 00:00:00

abstract：:Holins are a diverse group of small integral membrane proteins elaborated by bacteriophages to lyse bacterial hosts and effect release of progeny phages in a precisely timed manner. Recently, the holin S gene of phage lambda was overexpressed and the holin protein was purified to homogeneity by means of an oligohistid...

journal_title：Journal of bacteriology

authors： Smith DL,Young R

更新日期：1998-08-01 00:00:00

abstract：:Crude cell extracts of Bacillus subtilis 168T exhibit enzyme activity capable of releasing free uracil from phage PBS1 deoxyribonucleic acid (DNA) in the presence of ethylenediaminetetraacetate. By measuring the enzyme activity in 300 clones that emanated from mutagenized cells, we obtained a mutant strain that did no...

journal_title：Journal of bacteriology

authors：

更新日期：1977-08-01 00:00:00

abstract：:Alpha granules were isolated from a blue-green alga, Nostoc muscorum, in large quantities and high purity by sucrose density gradient centrifugation. Sodium deoxycholate was used to eliminate membrane contamination. Isolated alpha granules from this species have average dimension of 31 nm in width and 65 nm in length....

journal_title：Journal of bacteriology

authors： Chao L,Bowen CC

更新日期：1971-01-01 00:00:00

abstract：:The central metabolic model for Geobacter sulfurreducens included a single pathway for the biosynthesis of isoleucine that was analogous to that of Escherichia coli, in which the isoleucine precursor 2-oxobutanoate is generated from threonine. 13C labeling studies performed in G. sulfurreducens indicated that this pat...

journal_title：Journal of bacteriology

authors： Risso C,Van Dien SJ,Orloff A,Lovley DR,Coppi MV

更新日期：2008-04-01 00:00:00

abstract：:Nitrogenase is a functionally constant protein catalyzing N2 reduction, which is found in many phylogenetic lineages of Archaea and Bacteria. A phylogenetic analysis of nif genes may provide insights into the evolution of the bacterial genomes. Moreover, it may be used to study diazotrophic communities, when classical...

journal_title：Journal of bacteriology

authors： Hurek T,Egener T,Reinhold-Hurek B

更新日期：1997-07-01 00:00:00

abstract：:Two cell shape-determining genes of Escherichia coli K-12, pbpA, the structural gene for penicillin-binding protein 2, and rodA, whose protein is unknown, were subcloned into plasmid vectors from the transducing phage lambda MAd lip24, which carries the lip-leuS region of the E. coli chromosome. Plasmids with restrict...

journal_title：Journal of bacteriology

authors： Asoh S,Matsuzawa H,Matsuhashi M,Ohta T

更新日期：1983-04-01 00:00:00

abstract：:Gaines, Sidney (Walter Reed Army Institute of Research, Washington, D.C.), Julius A. Currie, and Joseph G. Tully. Factors affecting formation of incomplete Vi antibody in mice. J. Bacteriol. 90:635-642. 1965.-Single immunizing doses of purified Vi antigen elicited complete and incomplete Vi antibodies in BALB/c mice, ...

journal_title：Journal of bacteriology

authors： Gaines S,Currie JA,Tully JG

更新日期：1965-09-01 00:00:00

abstract：:Rhizobactin 1021 is a hydroxymate siderophore produced by the soil bacterium Sinorhizobium meliloti 2011. A regulon comprising rhtA, encoding the outer membrane receptor protein for the ferrisiderophore; the biosynthesis operon rhbABCDEF; and rhrA, the Ara-C-like regulator of the receptor and biosynthesis genes has be...

journal_title：Journal of bacteriology

authors： Cuív PO,Clarke P,Lynch D,O'Connell M

更新日期：2004-05-01 00:00:00

abstract：:Multicopy single-stranded DNA is found as a small single-stranded RNA-DNA complex in certain wild-type strains of Escherichia coli as well as in other gram-negative bacteria. Using the promoter region of the previously characterized retron-Ec107 from E. coli ECOR70, I constructed a chromosomally located lacZ operon fu...

journal_title：Journal of bacteriology

authors： Herzer PJ

更新日期：1996-08-01 00:00:00

abstract：:The formation of recombinants in Hfr crosses was studied in Escherichia coli strains carrying combinations of genes known to affect recombination and DNA repair. Mutations in ruv and recG eliminate activities that have been shown to process Holliday junction intermediates by nuclease cleavage and/or branch migration. ...

journal_title：Journal of bacteriology

authors： Ryder L,Whitby MC,Lloyd RG

更新日期：1994-03-01 00:00:00

abstract：:The reproduction and morphogenesis of Rickettsiella chironomi, an unusual procaryotic parasite of midge larvae, was studied with electron microscopy. The morphogenic cycle was similar to that found in chlamydia and consisted of four major cell types: (i) medium-sized spherical initial bodies (ca. 1 micrometers in diam...

journal_title：Journal of bacteriology

authors： Federici BA

更新日期：1980-08-01 00:00:00

abstract：:Atractyloside and carboxyatractyloside partially inhibited nitrogenase activity (acetylene reduction) by isolated vesicles of Frankia strain EAN1pec. Extracts of disrupted vesicles showed nitrogenase activity that was not affected by the inhibitors. The vesicles accumulated ATP by an atractyloside-sensitive mechanism....

journal_title：Journal of bacteriology

authors： Tisa LS,Ensign JC

更新日期：1988-07-01 00:00:00

abstract：:Kimler, Alexander (National Institutes of Health, Bethesda, Md.). Fluorescein amine media for rapid differentiation of staphylococci. J. Bacteriol. 82:106-109. 1961.-By modifying conventional media to include blood, mannitol, and fluorescein amine, staphylococci may be isolated and identified directly. Staphylococcus ...

journal_title：Journal of bacteriology

authors： KIMLER A

更新日期：1961-07-01 00:00:00

abstract：:The blp locus of a type 6A strain of Streptococcus pneumoniae encodes a two-peptide bacteriocin, pneumocin MN, which mediates intraspecies competition during mouse nasopharyngeal colonization. This locus is regulated by a quorum-sensing mechanism consisting of a dedicated two-component regulatory system and a peptide ...

journal_title：Journal of bacteriology

authors： Dawid S,Sebert ME,Weiser JN

更新日期：2009-03-01 00:00:00

abstract：:Cefsulodin lyses actively growing Escherichia coli by binding specifically to penicillin-binding proteins (PBPs) 1a and 1b. Recent findings (F. García del Portillo, M. A. de Pedro, D. Joseleau-Petit, and R. D'Ari, J. Bacteriol. 171:4217-4221, 1989) have linked cefsulodin-induced lysis to septation during the first div...

journal_title：Journal of bacteriology

authors： Jacoby GH,Young KD

更新日期：1991-01-01 00:00:00

abstract：:The CpxA-CpxR two-component signal transduction pathway of Escherichia coli was studied in a mutant (pss-93) lacking phosphatidylethanolamine (PE). Several properties of this mutant are comparable to phenotypes of cpxA point mutants, indicating that this two-component pathway is activated in PE-deficient cells. In con...

journal_title：Journal of bacteriology

authors： Mileykovskaya E,Dowhan W

更新日期：1997-02-01 00:00:00

abstract：:Extracellular muramidase-2 of Enterococcus hirae ATCC 9790 was purified to homogeneity by substrate binding, guanidine-HCl extraction, and reversed-phase chromatography. A monoclonal antibody, 2F8, which specifically recognizes muramidase-2, was used to screen a genomic library of E. hirae ATCC 9790 DNA in bacteriopha...

journal_title：Journal of bacteriology

authors： Chu CP,Kariyama R,Daneo-Moore L,Shockman GD

更新日期：1992-03-01 00:00:00

abstract：:Sialidase activity varies widely among strains and tends to correlate with strain virulence in the avian pathogen Mycoplasma synoviae. To characterize the forms of selection acting on enzymes required for sialic acid scavenging and catabolism, the ratios of nonsynonymous (K(a)) to synonymous (K(s)) mutation frequency ...

journal_title：Journal of bacteriology

authors： May M,Brown DR

更新日期：2009-06-01 00:00:00

abstract：:In gram-negative bacteria, numerous cell functions, including respiration-linked electron transport, have been ascribed to the cytoplasmic membrane. Gram-negative bacteria which use solid substrates (e.g., oxidized manganese or iron) as terminal electron acceptors for anaerobic respiration are presented with a unique ...

journal_title：Journal of bacteriology

authors： Myers CR,Myers JM

更新日期：1992-06-01 00:00:00

abstract：:Archaea are abundant and drive critical microbial processes in the Earth's cold biosphere. Despite this, not enough is known about the molecular mechanisms of cold adaptation and no biochemical studies have been performed on stenopsychrophilic archaea (e.g., Methanogenium frigidum). This study examined the structural ...

journal_title：Journal of bacteriology

authors： Giaquinto L,Curmi PM,Siddiqui KS,Poljak A,DeLong E,DasSarma S,Cavicchioli R

更新日期：2007-08-01 00:00:00

abstract：:A cyclic version of the Entner-Doudoroff pathway is used by Pseudomonas aeruginosa to metabolize carbohydrates. Genes encoding the enzymes that catabolize intracellular glucose to pyruvate and glyceraldehyde 3-phosphate are coordinately regulated, clustered at 39 min on the chromosome, and collectively form the hex re...

journal_title：Journal of bacteriology

authors： Hager PW,Calfee MW,Phibbs PV

更新日期：2000-07-01 00:00:00