The davDT operon of Pseudomonas putida, involved in lysine catabolism, is induced in response to the pathway intermediate delta-aminovaleric acid.

abstract：:A mutant of Escherichia coli resistant to serine hydroxamate which has a large increase in Km for serine of seryl-tRNA synthetase is described. The mutant serS gene was cloned and sequenced and was found to contain a single-base-pair mutation, resulting in the substitution of the residue alanine 262 by valine in motif...

journal_title：Journal of bacteriology

authors： Willison JC,Härtlein M,Leberman R

更新日期：1995-06-01 00:00:00

abstract：:A gene encoding only the C-terminal portion of the receptor-transducer protein Tar of Escherichia coli was constructed. The gene product was detected and localized in the cytoplasmic fraction of the cell by immunoblotting with anti-Tar antibodies. The C-terminal fragments from wild-type and mutant tar genes were chara...

journal_title：Journal of bacteriology

authors： Oosawa K,Mutoh N,Simon MI

更新日期：1988-06-01 00:00:00

abstract：:LcrV, an essential piece of the Yop virulon, is encoded by the large lcrGVsycDyopBD operon. In spite of repeated efforts, the role of LcrV in the Yop virulon remains elusive. In an attempt to clarify this, we engineered a complete deletion of lcrV in the pYV plasmid of Yersinia enterocolitica E40 and characterized the...

journal_title：Journal of bacteriology

authors： Sarker MR,Neyt C,Stainier I,Cornelis GR

更新日期：1998-03-01 00:00:00

abstract：:Chlamydia spp. exhibit a unique biphasic developmental cycle whereby infectious elementary bodies (EBs) invade host epithelial cells and differentiate into noninfectious, metabolically active reticulate bodies (RBs). EBs posses a unique outer envelope where rigidity is achieved by disulfide bonding among cysteine-rich...

journal_title：Journal of bacteriology

authors： Betts-Hampikian HJ,Fields KA

更新日期：2011-12-01 00:00:00

abstract：:Escherichia coli W3110 contains four types of IS1 elements in the chromosome. Using an insertion element entrapping system, we collected 116 IS1 plasmid insertion mutants, which resulted from a minimum of 26 independent IS1 insertion events. All of them had insertions of IS1 of the IS1A (IS1E and IS1G) type. Inspectio...

journal_title：Journal of bacteriology

authors： Chen JH,Hsu WB,Hwang JL

更新日期：1998-10-01 00:00:00

abstract：:The deoxyribonucleic acid (DNA) polymerase activities in Bacillus subtilis strains Marburg 168 (thy-trp2) and D22, a DNA polymerase I-deficient mutant, were measured at various stages of sporulation. The DNA polymerase I activity, which had decreased after the exponential growth, began to increase at the early stage o...

journal_title：Journal of bacteriology

authors： Honjo M,Shibano Y,Komano T

更新日期：1976-10-01 00:00:00

abstract：:West Indian spiny lobsters, Panulirus argus, synthesized a hemolymph bactericidin after being injected with killed suspensions of gram-negative bacillus EMB-1 isolated from the normal gut of this lobster. To study differences between the primary response and secondary response, animals were given a primary antigen inj...

journal_title：Journal of bacteriology

authors： Evans EE,Weinheimer PF,Painter B,Acton RT,Evans ML

更新日期：1969-06-01 00:00:00

abstract：:Penicillin-binding protein 4a (PBP4a) from Bacillus subtilis was overproduced and purified to homogeneity. It clearly exhibits DD-carboxypeptidase and thiolesterase activities in vitro. Although highly isologous to the Actinomadura sp. strain R39 DD-peptidase (B. Granier, C. Duez, S. Lepage, S. Englebert, J. Dusart, O...

journal_title：Journal of bacteriology

authors： Duez C,Vanhove M,Gallet X,Bouillenne F,Docquier J,Brans A,Frère J

更新日期：2001-03-01 00:00:00

abstract：:Sigma 54 associates with bacterial core RNA polymerase and converts it into an enhancer-responsive enzyme. Deletion of the N-terminal 40 amino acids is known to result in loss of the ability to respond to enhancer binding proteins. In this work PCR mutagenesis and genetic screens were used to identify a small patch, f...

journal_title：Journal of bacteriology

authors： Syed A,Gralla JD

更新日期：1998-11-01 00:00:00

abstract：:Fast-growing species of Rhizobium were found to secrete low-molecular-weight beta-2-linked glucans when cultured in synthetic liquid medium. These glucans are quite similar to beta-2-linked glucans produced by species of Agrobacterium. No reducing terminus was detected in these glucans. ...

journal_title：Journal of bacteriology

authors： York WS,McNeil M,Darvill AG,Albersheim P

更新日期：1980-04-01 00:00:00

abstract：:A previously constructed trp-S-lacZ fusion encoding a hybrid protein with beta-galactosidase activity was subcloned from a multicopy plasmid onto a lambda vector. Single-copy lysogens of lambda trpS-lacZ were used to determine whether trpS was regulated in a manner similar to that of other aminoacyl-tRNA synthetases. ...

journal_title：Journal of bacteriology

authors： Hall CV,Yanofsky C

更新日期：1982-08-01 00:00:00

abstract：:Little is known about the effect of the host on the genetic stability of bacterial plant pathogens. Crown gall, a plant disease caused by Agrobacterium tumefaciens, may represent a useful model to study this effect. Indeed, our previous observations on the natural occurrence and origin of nonpathogenic agrobacteria su...

journal_title：Journal of bacteriology

authors： Bélanger C,Canfield ML,Moore LW,Dion P

更新日期：1995-07-01 00:00:00

abstract：:The expression of Escherichia coli purR, which encodes the pur regulon repressor protein, is autoregulated. Autoregulation at the level of transcription requires two operator sites, designated purRo1 and purRo2 (O1 and O2). Operator O1 is in the region of DNA between the transcription start site and the site for trans...

journal_title：Journal of bacteriology

authors： Rolfes RJ,Zalkin H

更新日期：1990-10-01 00:00:00

abstract：:Biofilm formation was repressed by glucose in several species of Enterobacteriaceae. In Escherichia coli, this effect was mediated at least in part by cyclic AMP (cAMP)-cAMP receptor protein. A temporal role for cAMP in biofilm development was indicated by the finding that glucose addition after approximately 24 h fai...

journal_title：Journal of bacteriology

authors： Jackson DW,Simecka JW,Romeo T

更新日期：2002-06-01 00:00:00

abstract：:In Pseudomonas putida DOT-T1E multidrug efflux pumps of the resistance-nodulation-division family make a major contribution to solvent resistance. Two pumps have been identified: TtgABC, expressed constitutively, and TtgDEF, induced by aromatic hydrocarbons. A double mutant lacking both efflux pumps was able to surviv...

journal_title：Journal of bacteriology

authors： Rojas A,Duque E,Mosqueda G,Golden G,Hurtado A,Ramos JL,Segura A

更新日期：2001-07-01 00:00:00

abstract：:Outer membranes, free of cytoplasmic or thylakoid membranes and peptidoglycan components, were obtained from Synechocystis sp. strain PCC6714. Electron microscope studies revealed double-track outer membrane vesicles with a smooth-appearing exoplasmic surface, an exoplasmic fracture face covered by closely packed part...

journal_title：Journal of bacteriology

authors： Jürgens UJ,Weckesser J

更新日期：1985-10-01 00:00:00

abstract：:Intact yeast cells treated with alkali cations took up plasmid DNA. Li+, Cs+, Rb+, K+, and Na+ were effective in inducing competence. Conditions for the transformation of Saccharomyces cerevisiae D13-1A with plasmid YRp7 were studied in detail with CsCl. The optimum incubation time was 1 h, and the optimum cell concen...

journal_title：Journal of bacteriology

authors： Ito H,Fukuda Y,Murata K,Kimura A

更新日期：1983-01-01 00:00:00

abstract：:Nine high copy number mutations of plasmid R6-5, representing five phenotypically distinct groups, have been identified by DNA sequencing. In each mutant plasmid examined, a single nucleotide change was found. The effects of the mutations on possible gene products, and DNA-RNA secondary structure, were analyzed and co...

journal_title：Journal of bacteriology

authors： Brady G,Frey J,Danbara H,Timmis KN

更新日期：1983-04-01 00:00:00

abstract：:Tn916 [carries tet(M)] is a 16.4-kb conjugative transposon that can establish itself in multiple copies in Enterococcus faecalis. To study the interaction of coresident homologous transposons during conjugation, an E. faecalis mutant defective in homologous recombination was utilized for construction of strains harbor...

journal_title：Journal of bacteriology

authors： Flannagan SE,Clewell DB

更新日期：1991-11-01 00:00:00

abstract：:A lytic enzyme active against viable, intact staphylococci is released into culture fluids upon lysis of bacteriophage-infected Staphylococcus aureus PS53 cells. This enzyme, staphylococcal phage-associated lysin (PAL), was partially purified by ammonium sulfate precipitation and gel filtration through Sephadex G-200....

journal_title：Journal of bacteriology

authors： Sonstein SA,Hammel JM,Bondi A

更新日期：1971-08-01 00:00:00

abstract：:Bacterial Gre factors associate with RNA polymerase (RNAP) and stimulate intrinsic cleavage of the nascent transcript at the active site of RNAP. Biochemical and genetic studies to date have shown that Escherichia coli Gre factors prevent transcriptional arrest during elongation and enhance transcription fidelity. Fur...

journal_title：Journal of bacteriology

authors： Kusuya Y,Kurokawa K,Ishikawa S,Ogasawara N,Oshima T

更新日期：2011-06-01 00:00:00

abstract：:The ability of deoxyribonucleic acid (DNA) isolated from a number of actinomycetes to reassociate with reference DNA from Actinoplanes philippinensis or Streptomyces venezuelae has been measured. All of the DNA preparations except for those from Nocardia erythropolis and Thermomonospora viridis contained 70 to 73 mole...

journal_title：Journal of bacteriology

authors： Farina G,Bradley SG

更新日期：1970-04-01 00:00:00

abstract：:Cohen, Jay O. (Communicable Disease Center, Atlanta, Ga.), Glenda S. Cowart, and William B. Cherry. Antibodies against Staphylococcus aureus in nonimmunized rabbits. J. Bacteriol. 82:110-114. 1961.-Antibody against staphylococci was demonstrated in the serum of each of 36 nonimmunized specific-pathogen-free rabbits th...

journal_title：Journal of bacteriology

authors： COHEN JO,COWART GS,CHERRY WB

更新日期：1961-07-01 00:00:00

abstract：:Type 1 fimbriae and flagella have been previously shown to contribute to the virulence of uropathogenic Escherichia coli (UPEC) within the urinary tract. In this study, the relationship between motility and type 1 fimbrial expression was tested for UPEC strain CFT073 by examining the phenotypic effect of fimbrial expr...

journal_title：Journal of bacteriology

authors： Lane MC,Simms AN,Mobley HL

更新日期：2007-08-01 00:00:00

abstract：:Groman, Neal B. (University of Washington, Seattle) and Grace Suzuki. Quantitative study of endolysin synthesis during reproduction of lambda phages. J. Bacteriol. 86:187-194. 1963.-Endolysin is presumed to be a phage-induced enzyme participating in lysis through its destructive action on the host cell wall. A method ...

journal_title：Journal of bacteriology

authors： GROMAN NB,SUZUKI G

更新日期：1963-08-01 00:00:00

abstract：UNLABELLED:Bacteriophytochrome photoreceptors (BphPs) and their cognate response regulators make up two-component signal transduction systems which direct bacteria to mount phenotypic responses to changes in environmental light quality. Most of these systems utilize single-domain response regulators to transduce signal...

journal_title：Journal of bacteriology

authors： Baker AW,Satyshur KA,Moreno Morales N,Forest KT

更新日期：2016-03-31 00:00:00

abstract：:Glyoxal is toxic and mutagenic α-oxoaldehyde generated in vivo as an oxidation by-product of sugar metabolism. We selected glyoxal-resistant mutants from an Escherichia coli strain lacking major glyoxal-detoxifying genes, gloA and yqhD, by growing cells in medium containing a lethal concentration of glyoxal. The mutan...

journal_title：Journal of bacteriology

authors： Kwon M,Lee J,Lee C,Park C

更新日期：2012-04-01 00:00:00

abstract：:Synthesis of wild-type Neurospora crassa assimilatory nitrate reductase is induced in the presence of nitrate ions and repressed in the presence of ammonium ions. Effects of several Neurospora mutations on the regulation of this enzyme are shown: (i) the mutants, nit-1 and nit-3, involving separate lesions, lack reduc...

journal_title：Journal of bacteriology

authors： Dantzig AH,Zurowski WK,Ball TM,Nason A

更新日期：1978-02-01 00:00:00

abstract：:We report here the identification of a new lipoprotein, NlpI, in Escherichia coli K-12. The NlpI structural gene (nlpI) is located between the genes pnp (polynucleotide phosphorylase) and deaD (RNA helicase) at 71 min on the E. coli chromosome. The nlpI gene encodes a putative polypeptide of approximately 34 kDa, and ...

journal_title：Journal of bacteriology

authors： Ohara M,Wu HC,Sankaran K,Rick PD

更新日期：1999-07-01 00:00:00

abstract：:The growth constant and Y (sucrose) (grams of cells per mole of sucrose) for NH(3)-grown cultures of Clostridium pasteurianum were 1.7 times those of N(2)-grown cultures, whereas the rate of sucrose utilized per gram of cells per hour was similar for both conditions. The Y (sucrose) of chemostat cultures grown on limi...

journal_title：Journal of bacteriology

authors： Daesch G,Mortenson LE

更新日期：1968-08-01 00:00:00