Genetic mapping of the antigenic determinants of two polysaccharide K antigens, K10 and K54, in Escherichia coli.

abstract：:The Haemophilus influenzae Rd rec-1+ gene was cloned from a partial chromosomal digest into a plasmid vector as a 20-kilobase-pair (kbp) BstEII fragment and then subcloned. The smallest subclone with rec-1+ activity carried a 3.1-kbp EcoRI fragment. The identity of the rec-I gene in these clones was confirmed by trans...

journal_title：Journal of bacteriology

authors： Stuy JH

更新日期：1989-08-01 00:00:00

abstract：:The levels of reduced and oxidized nicotinamide adenine dinucleotides were determined in Xanthobacter flavus during a transition from heterotrophic to autotrophic growth. Excess reducing equivalents are rapidly dissipated following induction of the Calvin cycle, indicating that the Calvin cycle serves as a sink for ex...

journal_title：Journal of bacteriology

authors： van Keulen G,Dijkhuizen L,Meijer WG

更新日期：2000-08-01 00:00:00

abstract：:Streptococcus agalactiae is a primary cause of neonatal morbidity and mortality. Essential to the virulence of this pathogen is the production of a type-specific capsular polysaccharide (CPS) that enables the bacteria to evade host immune defenses. The identification, cloning, sequencing, and functional characterizati...

journal_title：Journal of bacteriology

authors： Chaffin DO,Beres SB,Yim HH,Rubens CE

更新日期：2000-08-01 00:00:00

abstract：:Mir M7 is a spontaneous morphologically conditional mutant of Klebsiella pneumoniae which grows as round cells (cocci) at pH 7 and as normal rods at pH 5.8. We studied the rates of peptidoglycan synthesis of cocci and rods growing at pH values of 7 and 5.8, respectively. It was found that exponentially growing cocci p...

journal_title：Journal of bacteriology

authors： Satta G,Fontana R,Canepari P,Botta G

更新日期：1979-02-01 00:00:00

abstract：:Picolinic acid (PA) is a natural toxic pyridine derivative. Microorganisms can degrade and utilize PA for growth. However, the full catabolic pathway of PA and its physiological and genetic foundation remain unknown. In this study, we identified a gene cluster, designated picRCEDFB4B3B2B1A1A2A3, responsible for the de...

journal_title：Journal of bacteriology

authors： Qiu J,Zhao L,Xu S,Chen Q,Chen L,Liu B,Hong Q,Lu Z,He J

更新日期：2019-07-24 00:00:00

abstract：:Mutations in sulA (sfiA) block the filamentation and death of capR (lon) mutants that occur after treatments that either damage DNA or inhibit DNA replication and thereby induce the SOS response. Previous sulA-lacZ gene fusion studies showed that sulA is transcriptionally regulated by the SOS response system (lexA/rec...

journal_title：Journal of bacteriology

authors： Schoemaker JM,Gayda RC,Markovitz A

更新日期：1984-05-01 00:00:00

abstract：:Genes involved in allose utilization of Escherichia coli K-12 are organized in at least two operons, alsRBACE and alsI, located next to each other on the chromosome but divergently transcribed. Mutants defective in alsI (allose 6-phosphate isomerase gene) and alsE (allulose 6-phosphate epimerase gene) were Als(-). Tra...

journal_title：Journal of bacteriology

authors： Poulsen TS,Chang YY,Hove-Jensen B

更新日期：1999-11-01 00:00:00

abstract：:The nitrogenase gene cluster in cyanobacteria has been thought to comprise multiple operons; however, in Anabaena variabilis, the promoter for the first gene in the cluster, nifB1, appeared to be the primary promoter for the entire nif cluster. The structural genes nifHDK1 were the most abundant transcripts; however, ...

journal_title：Journal of bacteriology

authors： Pratte BS,Thiel T

更新日期：2014-10-01 00:00:00

abstract：:The sugar composition of lipopolysaccharide (LPS) isolated from whole cells of Alteromonas haloplanktis 214 (previously referred to as marine pseudomonas B-16, ATCC 19855), variant 3, of the lipid A, core, and side-chain fractions derived from it, and of the LPS fractions (LPS I, II, and III) obtained by subjecting it...

journal_title：Journal of bacteriology

authors： DiRienzo JM,MacLeod RA

更新日期：1978-10-01 00:00:00

abstract：:The Rhizobium leguminosarum biovar viciae genome contains several genes predicted to determine surface polysaccharides. Mutants predicted to affect the initial steps of polysaccharide synthesis were identified and characterized. In addition to the known cellulose (cel) and acidic exopolysaccharide (EPS) (pss) genes, w...

journal_title：Journal of bacteriology

authors： Williams A,Wilkinson A,Krehenbrink M,Russo DM,Zorreguieta A,Downie JA

更新日期：2008-07-01 00:00:00

abstract：:The P1 plasmid addiction operon is a compact genetic structure consisting of promoter, operator, antitoxin gene (phd), and toxin gene (doc). The 73-amino-acid antitoxin protein, Phd, has two distinct functions: it represses transcription (by binding to its operator) and it prevents host death (by binding and neutraliz...

journal_title：Journal of bacteriology

authors： Smith JA,Magnuson RD

更新日期：2004-05-01 00:00:00

abstract：:Bacterial spores have long been recognized as the sturdiest known life forms on earth, revealing extraordinary resistance to a broad range of environmental assaults. A family of highly conserved spore-specific DNA-binding proteins, termed alpha/beta-type small, acid-soluble spore proteins (SASP), plays a major role in...

journal_title：Journal of bacteriology

authors： Frenkiel-Krispin D,Sack R,Englander J,Shimoni E,Eisenstein M,Bullitt E,Horowitz-Scherer R,Hayes CS,Setlow P,Minsky A,Wolf SG

更新日期：2004-06-01 00:00:00

abstract：:Wallace, W. R. (Louisiana State University, Baton Rouge), and G. T. Dimopoullos. Catalase activity in Anaplasma marginale. J. Bacteriol. 91:309-311. 1965.-Extracts of erythrocytes infected with Anaplasma marginale were found to contain more catalase activity than normal erythrocytic preparations. The increase in catal...

journal_title：Journal of bacteriology

authors： WALLACE WR,DIMOPOULLOS GT

更新日期：1965-08-01 00:00:00

abstract：:The seven proteins encoded by the comG operon of Bacillus subtilis exhibit similarity to gene products required for the assembly of type 4 pili and for the secretion of certain proteins in gram-negative bacteria. Although polar transposon insertions in comG result in the loss of transformability and in the failure of ...

journal_title：Journal of bacteriology

authors： Chung YS,Dubnau D

更新日期：1998-01-01 00:00:00

abstract：:Coliphage TuIa, which uses the OmpF protein as a receptor, can adapt by mutation to using instead the OmpC or LamB protein, or both. Most of the phage mutants retained the ability to use the OmpF protein, when present, but one class of mutants lost this ability and could only use the OmpC protein. ...

journal_title：Journal of bacteriology

authors： Moreno F,Wandersman C

更新日期：1980-12-01 00:00:00

abstract：:Disrupted spheroplast preparations of Pseudomonas schuylkilliensis strain P contained fragments of cytoplasmic membrane and approximately 82% of the total cellular phospholipid. The protoplast-bursting factor (PB-factor), partially purified from pig pancreas, and a heat-treated pancreatic lipase fraction both inhibite...

journal_title：Journal of bacteriology

authors： Mizuno S,Maruo B

更新日期：1972-01-01 00:00:00

abstract：:We identified several promoters responsible for the expression of regA, which encodes a global virulence regulator in Citrobacter rodentium. Expression of some of the promoters was strongly autoactivated by RegA in conjunction with bicarbonate. Biochemical and mutational analyses were used to determine the consensus s...

journal_title：Journal of bacteriology

authors： Tan A,Yang J,Tauschek M,Praszkier J,Robins-Browne RM

更新日期：2011-04-01 00:00:00

abstract：:FpvR is a presumed cytoplasmic membrane-associated anti-sigma factor that controls the activities of extracytoplasmic function sigma factors PvdS and FpvI responsible for transcription of pyoverdine biosynthetic genes and the ferric pyoverdine receptor gene, fpvA, respectively. Using deletion analysis and an in vivo b...

journal_title：Journal of bacteriology

authors： Rédly GA,Poole K

更新日期：2005-08-01 00:00:00

abstract：:The two-component regulatory system, OmpR-EnvZ, of Escherichia coli K-12 regulates the expression of the major outer membrane porin protein, OmpF. OmpR is a DNA-binding protein which acts as both an activator and a repressor to control ompF transcription. In this article, we describe a new OmpR-binding site that is lo...

journal_title：Journal of bacteriology

authors： Huang KJ,Schieberl JL,Igo MM

更新日期：1994-03-01 00:00:00

abstract：:Lee, Spencer H. S. (Dalhousie University, Halifax, Nova Scotia). Effect of 6-aminonicotinamide on chick-embryo tissue cultures infected with vaccinia virus. J. Bacteriol. 88:885-892. 1964.-6-Aminonicotinamide (6-AN) was shown to render chick-embryo fibroblast (CEF) tissue cultures refractory to infection with vaccinia...

journal_title：Journal of bacteriology

authors： LEE SH

更新日期：1964-10-01 00:00:00

abstract：:Clostridium difficile is the etiological agent of antibiotic-associated diarrhea. Among the factors that may play a role in infection are S-layer proteins (SLPs). Previous work has shown these to consist mainly of two components, resulting from the cleavage of a precursor encoded by the slpA gene. The high-molecular-w...

journal_title：Journal of bacteriology

authors： Calabi E,Fairweather N

更新日期：2002-07-01 00:00:00

abstract：:Chorpenning, Frank W. (The Ohio State University, Columbus), and Matthew C. Dodd. Heterogenetic antigens of gram-positive bacteria. J. Bacteriol. 91:1440-1445. 1966.-Soluble antigens obtained by various methods from gram-positive bacteria were used to modify erythrocytes whose hemagglutinating reactions with immune ra...

journal_title：Journal of bacteriology

authors： Chorpenning FW,Dodd MC

更新日期：1966-04-01 00:00:00

abstract：:Maleylacetate reductase (EC 1.3.1.32) plays a major role in the degradation of chloroaromatic compounds by channelling maleylacetate and some chlorinated derivatives into the 3-oxoadipate pathway. Several substituted maleylacetates were prepared in situ by alkaline or enzymatic hydrolysis of dienelactones as the precu...

journal_title：Journal of bacteriology

authors： Kaschabek SR,Reineke W

更新日期：1995-01-01 00:00:00

abstract：:Isolated flagellar filaments of Sulfolobus shibatae were 15 nm in diameter, and they were composed of two major flagellins which have M(r)s of 31,000 and 33,000 and which stained positively for glycoprotein. The flagellar filaments of Thermoplasma volcanium were 12 nm in diameter and were composed of one major flagell...

journal_title：Journal of bacteriology

authors： Faguy DM,Bayley DP,Kostyukova AS,Thomas NA,Jarrell KF

更新日期：1996-02-01 00:00:00

abstract：:A DNA region carrying lysS, the gene encoding the lysyl-tRNA synthetase, was cloned from the extreme thermophile prokaryote Thermus thermophilus VK-1 and sequenced. The analysis indicated an open reading frame encoding a protein of 492 amino acids. This putative protein has significant homologies to previously sequenc...

journal_title：Journal of bacteriology

authors： Chen J,Brevet A,Lapadat-Tapolsky M,Blanquet S,Plateau P

更新日期：1994-05-01 00:00:00

abstract：:The extracellular chlamydial infectious particle, or elementary body (EB), is enveloped by an intra- and intermolecular cysteine cross-linked protein shell called the chlamydial outer membrane complex (COMC). A few abundant proteins, including the major outer membrane protein and cysteine-rich proteins (OmcA and OmcB)...

journal_title：Journal of bacteriology

authors： Liu X,Afrane M,Clemmer DE,Zhong G,Nelson DE

更新日期：2010-06-01 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：:Studies by R. Lin et al. (J. Bacteriol. 174:1948-1955, 1992) suggested that the Escherichia coli leu operon might be a member of the Lrp regulon. Their results were obtained with a leucine auxotroph; in leucine prototrophs grown in a medium lacking leucine, there was little difference in leu operon expression between ...

journal_title：Journal of bacteriology

authors： Landgraf JR,Boxer JA,Calvo JM

更新日期：1999-10-01 00:00:00

abstract：:The R-factor R1 is present in a low number of copies per genome (near unity, so-called stringent control of replication). The replication of R1 was studied in a density-shift experiment. One generation after the shift about 20% of the R1 copies had not replicated, whereas about 20% had replicated at least twice. The r...

journal_title：Journal of bacteriology

authors： Gustafsson P,Nordström K

更新日期：1975-08-01 00:00:00

abstract：:Membrane fragments containing diacyl phospholipids were released from viable cells of Haemophilus parainfluenzae during incubation in ethylenediaminetetraacetic acid (EDTA)- tris(hydroxymethyl)aminomethane (Tris) buffer. The phospholipids located in the part of the membrane that was released during the EDTA-Tris treat...

journal_title：Journal of bacteriology

authors： Tucker AN,White DC

更新日期：1970-08-01 00:00:00