Effect of the CopB auxiliary replication control system on stability of maintenance of Par(+) plasmid R1.

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：:Legionella pneumophila expresses two peroxide-scavenging alkyl hydroperoxide reductase systems (AhpC1 and AhpC2D) that are expressed differentially during the bacterial growth cycle. Functional loss of the postexponentially expressed AhpC1 system is compensated for by increased expression of the exponentially expresse...

journal_title：Journal of bacteriology

authors： LeBlanc JJ,Brassinga AK,Ewann F,Davidson RJ,Hoffman PS

更新日期：2008-05-01 00:00:00

abstract：:The halophilic bacterium Halomonas elongata synthesizes as its main compatible solute the aspartate derivative ectoine. We constructed a deletion mutant of H. elongata, KB1, defective in ectoine synthesis and tolerating elevated salt concentrations only in the presence of external compatible solutes. The dependency of...

journal_title：Journal of bacteriology

authors： Grammann K,Volke A,Kunte HJ

更新日期：2002-06-01 00:00:00

abstract：:Uptake of (35)S-hydroxyethylthiazole (4-methyl-5-hydroxyethylthiazole) by Escherichia coli intact cells was studied. Hydroxyethylthiazole was taken up in the presence and absence of glucose at the same rate. The uptake was almost proportional to a hydroxyethylthiazole concentration gradient up to 0.1 mM with no tenden...

journal_title：Journal of bacteriology

authors： Yamasaki H,Sanemori H,Yamada K,Kawasaki T

更新日期：1973-12-01 00:00:00

abstract：:Reich, Paul R. (National Institutes of Health, Bethesda, Md.), Norman L. Somerson, James A. Rose, and Sherman M. Weissman. Genetic relatedness among mycoplasmas as determined by nucleic acid homology. J. Bacteriol. 91:153-160. 1966.-A sensitive membrane filter method to detect nucleic acid homology was used to determi...

journal_title：Journal of bacteriology

authors： Reich PR,Somerson NL,Rose JA,Weissman SM

更新日期：1966-01-01 00:00:00

abstract：:The concentrations of all metabolites studied, except fructose 1,6-bisphosphate from wild-type Phycomyces blakesleeanus, were light dependent. This photoregulation appears to be independent of the mad gene product(s) and also independent of carotene biosynthesis regulation. However, the photoregulation of glyceraldehy...

journal_title：Journal of bacteriology

authors： Rua J,Rodriguez-Aparicio LB,Busto F,Soler J

更新日期：1987-02-01 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：:The polar pili of Pseudomonas aeruginosa are composed of subunits encoded by the pilA gene. Expression of pilA requires the alternative sigma factor RpoN and a pair of regulatory elements, PilS and PilR. These two proteins are members of the two-component regulatory family, in which PilS is the sensory component and P...

journal_title：Journal of bacteriology

authors： Boyd JM,Lory S

更新日期：1996-02-01 00:00:00

abstract：:Mycoplasma pneumoniae adherence to host cells is a multifactorial process that requires the cytadhesin P1 and additional accessory proteins. The hmw gene cluster consists of the genes p30, hmw3, and hmw1, the products of which are known to be essential for cytadherence, the rpsD gene, and six open reading frames of un...

journal_title：Journal of bacteriology

authors： Waldo RH 3rd,Popham PL,Romero-Arroyo CE,Mothershed EA,Lee KK,Krause DC

更新日期：1999-08-01 00:00:00

abstract：:A d-glucosamine 6-phosphate N-acetyltransferase from Blastocladiella emersonii zoospores was partially purified to a specific activity of 2.41 IU per mg of protein. Its pH optimum was 8.05 and its K(m) values were 2.4 x 10(-4) M d-glucosamine 6-phosphate and 0.38 x 10(-4) M Na(3)S-acetyl coenzyme A. ...

journal_title：Journal of bacteriology

authors： Giddings TH,Cantino EC

更新日期：1974-11-01 00:00:00

abstract：:The histidine kinase (HK) component of many two-component regulatory systems exhibits regulated ability to phosphorylate itself and to participate in transfer of phosphate to and from its cognate response regulator. The signaling system that controls expression of the UhpT sugar phosphate transporter in Escherichia co...

journal_title：Journal of bacteriology

authors： Wright JS,Olekhnovich IN,Touchie G,Kadner RJ

更新日期：2000-11-01 00:00:00

abstract：:A positive selection method for isolation of nitrogenase-derepressed mutant strains of a filamentous cyanobacterium, Anabaena variabilis, is described. Mutant strains that are resistant to a glutamate analog, L-methionine-D,L-sulfoximine, were screened for their ability to produce and excrete NH4+ into medium. Mutant ...

journal_title：Journal of bacteriology

authors： Spiller H,Latorre C,Hassan ME,Shanmugam KT

更新日期：1986-02-01 00:00:00

abstract：:Sagers, Richard D. (Brigham Young University, Provo, Utah), Moshe Benziman, and Sigrid M. Klein. Failure of arsenate to uncouple the phosphotransacetylase system in Clostridium acidiurici. J. Bacteriol. 86:978-984. 1963.-The conversion of pyruvate to acetyl phosphate by extracts of Clostridium acidiurici required coen...

journal_title：Journal of bacteriology

authors： SAGERS RD,BENZIMAN M,KLEIN SM

更新日期：1963-11-01 00:00:00

abstract：:Strain 768-28 was isolated from a hot spring in Kamchatka, Russia, and represents a novel member of the Vulcanisaeta genus. The complete genome sequence of this thermoacidophilic anaerobic crenarchaeon reveals genes for protein and carbohydrate-active enzymes, the Embden-Meyerhof and Entner-Doudoroff pathways for gluc...

journal_title：Journal of bacteriology

authors： Gumerov VM,Mardanov AV,Beletsky AV,Prokofeva MI,Bonch-Osmolovskaya EA,Ravin NV,Skryabin KG

更新日期：2011-05-01 00:00:00

abstract：:Deoxycytosine methylase (Dcm) enzyme activity causes mutagenesis in vitro either directly by enzyme-induced deamination of cytosine to uracil in the absence of the methyl donor, S-adenosylmethionine (SAM), or indirectly through spontaneous deamination of [5-methyl]cytosine to thymine. Using a Lac reversion assay, we i...

journal_title：Journal of bacteriology

authors： Macintyre G,Atwood CV,Cupples CG

更新日期：2001-02-01 00:00:00

abstract：:The skin represents an important barrier for pathogens and is known to produce fatty acids that are toxic toward gram-positive bacteria. A screen of fatty acids as growth inhibitors of Staphylococcus aureus revealed structure-specific antibacterial activity. Fatty acids like oleate (18:1Δ9) were nontoxic, whereas palm...

journal_title：Journal of bacteriology

authors： Parsons JB,Yao J,Frank MW,Jackson P,Rock CO

更新日期：2012-10-01 00:00:00

abstract：:FabG performs the NADPH-dependent reduction of β-keto acyl-acyl carrier protein substrates in the elongation cycle of fatty acid synthesis. We report the characterization of a temperature-sensitive mutation (fabGΔ8) in Escherichia colifabG that results from an in-frame 8-amino-acid residue deletion in the α6/α7 subdom...

journal_title：Journal of bacteriology

authors： Srinivas S,Cronan JE

更新日期：2017-04-25 00:00:00

abstract：:Campylobacter jejuni, a microaerophilic bacterium, is the most frequent cause of human bacterial gastroenteritis. C. jejuni is exposed to harmful reactive oxygen species (ROS) produced during its own normal metabolic processes and during infection from the host immune system and from host intestinal microbiota. These ...

journal_title：Journal of bacteriology

authors： Flint A,Sun YQ,Stintzi A

更新日期：2012-01-01 00:00:00

abstract：:Cytochrome bd oxidase operons from more than 50 species of bacteria contain a short gene encoding a small protein that ranges from ∼30 to 50 amino acids and is predicted to localize to the cell membrane. Although cytochrome bd oxidases have been studied for more than 70 years, little is known about the role of this sm...

journal_title：Journal of bacteriology

authors： VanOrsdel CE,Bhatt S,Allen RJ,Brenner EP,Hobson JJ,Jamil A,Haynes BM,Genson AM,Hemm MR

更新日期：2013-08-01 00:00:00

abstract：:Electron cryotomography was used to analyze the structure of the Lyme disease spirochete, Borrelia burgdorferi. This methodology offers a new means for studying the native architecture of bacteria by eliminating the chemical fixing, dehydration, and staining steps of conventional electron microscopy. Using electron cr...

journal_title：Journal of bacteriology

authors： Charon NW,Goldstein SF,Marko M,Hsieh C,Gebhardt LL,Motaleb MA,Wolgemuth CW,Limberger RJ,Rowe N

更新日期：2009-01-01 00:00:00

abstract：:Spontaneous mutators of Salmonella typhimurium LT2 were generated by inserting the transposable element Tn5 or Tn10 into the bacterial chromosome. Two mutators mapped at the position of the mutH and mutL loci of S. typhimurium, and two other mutators mapped at positions corresponding to the mutS and uvrD loci of Esche...

journal_title：Journal of bacteriology

authors： Shanabruch WG,Behlau I,Walker GC

更新日期：1981-09-01 00:00:00

abstract：:All bacteria use the conserved Sec pathway to transport proteins across the cytoplasmic membrane, with the SecA ATPase playing a central role in the process. Mycobacteria are part of a small group of bacteria that have two SecA proteins: the canonical SecA (SecA1) and a second, specialized SecA (SecA2). The SecA2-depe...

journal_title：Journal of bacteriology

authors： Ligon LS,Rigel NW,Romanchuk A,Jones CD,Braunstein M

更新日期：2013-10-01 00:00:00

abstract：:A gene for the constitutive ribosephosphate isomerase (rpiA) is highly cotransducible with serA at 56.2 min on the genetic linkage map of Escherichia coli K-12. Suppression of ribosephosphate isomerase A-negative mutants can occur by a regulator gene mutation permitting constitutive synthesis of the normally inducible...

journal_title：Journal of bacteriology

authors： Skinner AJ,Cooper RA

更新日期：1974-06-01 00:00:00

abstract：:Changes in the cell wall of a species of Flavobacterium can be quantitated by measuring vancomycin adsorption. Treatment of the cells with ethylenediaminetetraacetic acid or tris(hydroxymethyl)aminomethane (or both) increased adsorption of the antibiotic. ...

journal_title：Journal of bacteriology

authors： Haslam DF,Best GK,Durham NN

更新日期：1970-08-01 00:00:00

abstract：:A protease-activated antimicrobial peptide (PAMP) and its inactive precursor were purified from the culture supernatant of Propionibacterium jensenii LMG 3032 and characterized at the molecular level. PAMP is a 64-amino-acid cationic peptide of 6,383 Da with physicochemical features similar to those of bacteriocins fr...

journal_title：Journal of bacteriology

authors： Faye T,Brede DA,Langsrud T,Nes IF,Holo H

更新日期：2002-07-01 00:00:00

abstract：:The sdiA gene codes for a protein that regulates expression of the ftsQAZ cluster of essential cell division genes of Escherichia coli. SdiA up-regulates the ftsQ2p promoter that initiates transcription into the ftsQAZ cluster. In this paper, we report that expression of sdiA is itself regulated by a factor that is re...

journal_title：Journal of bacteriology

authors： García-Lara J,Shang LH,Rothfield LI

更新日期：1996-05-01 00:00:00

abstract：:Containment strategies for outbreaks of invasive Neisseria meningitidis disease are informed by serogroup assays that characterize the polysaccharide capsule. We sought to uncover the genomic basis of conflicting serogroup assay results for an isolate (M16917) from a patient with acute meningococcal disease. To this e...

journal_title：Journal of bacteriology

authors： Rishishwar L,Katz LS,Sharma NV,Rowe L,Frace M,Dolan Thomas J,Harcourt BH,Mayer LW,Jordan IK

更新日期：2012-10-01 00:00:00

abstract：:Two isoenzymes of malate dehydrogenase (MDH) were demonstrated in plasmodia of Physarum polycephalum by polyacrylamide-gel electrophoresis. The more "cathodal" form was uniquely associated with mitochondria (M-MDH) and the other form was found in the soluble cytoplasm (S-MDH). The isoenzymes were separated by acetone ...

journal_title：Journal of bacteriology

authors： Teague WM,Henney HR Jr

更新日期：1973-11-01 00:00:00

abstract：:Holwerda, Jack (Michigan Department of Health, Grand Rapids) and Grace Eldering. Culture and fluorescent-antibody methods in diagnosis of whooping cough. J. Bacteriol. 86:449-451. 1963.-Nasopharyngeal swabs from 517 suspected whooping-cough patients were examined by culture and by fluorescent-antibody (FA) staining pr...

journal_title：Journal of bacteriology

authors： HOLWERDA J,ELDERING G

更新日期：1963-09-01 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