Conservation of structure and location of Rhizobium meliloti and Klebsiella pneumoniae nifB genes.

abstract：:Extracytoplasmic function σ factors that are stress inducible are often sequestered in an inactive complex with a membrane-associated anti-σ factor. Mycobacterium tuberculosis membrane-associated anti-σ factors have a small, stable RNA gene A (ssrA)-like degron for targeted proteolysis. Interaction between the unfolda...

journal_title：Journal of bacteriology

authors： Joshi AC,Kaur P,Nair RK,Lele DS,Nandicoori VK,Gopal B

更新日期：2019-02-25 00:00:00

abstract：:While coagulase-negative staphylococci (CoNS), with their ability to form a thick, multilayered biofilm on foreign bodies, have been identified as the major cause of implant-associated infections, no data are available about biofilm formation by staphylococcal small-colony variants (SCVs). In the past years, a number ...

journal_title：Journal of bacteriology

authors： Al Laham N,Rohde H,Sander G,Fischer A,Hussain M,Heilmann C,Mack D,Proctor R,Peters G,Becker K,von Eiff C

更新日期：2007-06-01 00:00:00

abstract：:A noncomposite transposon, designated Tn5541, was isolated from strain Fd33 of the filamentous cyanobacterium Fremyella diplosiphon UTEX 481. Sequence analysis showed that Tn5541 is structurally and genetically very similar to Tn5469, which is also endogenous to F. diplosiphon. Both Tn5469 and Tn5541 encode homologous...

journal_title：Journal of bacteriology

authors： Schaefer MR,Kahn K

更新日期：1998-11-01 00:00:00

abstract：:A class II restriction endonuclease which recognizes the same nucleotide sequence as EndoR.HaeIII has been found in four of seven isolates of Neisseria gonorrhoeae tested. ...

journal_title：Journal of bacteriology

authors： Clanton DJ,Woodward JM,Miller RV

更新日期：1978-07-01 00:00:00

abstract：:The dnaA genes of Salmonella typhimurium and Serratia marcescens, which complemented the temperature-sensitive dnaA46 mutation of Escherichia coli, were cloned and sequenced. They were very homologous to the dnaA gene of E. coli. The 63 N-terminal amino acids and the 333 C-terminal amino acids of the corresponding Dna...

journal_title：Journal of bacteriology

authors： Skovgaard O,Hansen FG

更新日期：1987-09-01 00:00:00

abstract：:Competent cell-deoxyribonucleic acid (DNA) interactions were examined using tritium-labeled homologous or heterologous native or denatured DNAs and competent Streptococcus sanguis Wicky cells (strain WE4). The DNAs used were extracted from WE4 cells, Escherichia coli B cells, and E. coli bacteriophages T2, T4, T6, and...

journal_title：Journal of bacteriology

authors： Ranhand JM

更新日期：1980-05-01 00:00:00

abstract：:The molecular mechanisms of regulation of the genes involved in the biosynthesis of cysteine are poorly characterized in Bacillus subtilis and other gram-positive bacteria. In this study we describe the expression pattern of the B. subtilis cysH operon in response to sulfur starvation. A 6.1-kb polycistronic transcrip...

journal_title：Journal of bacteriology

authors： Mansilla MC,Albanesi D,de Mendoza D

更新日期：2000-10-01 00:00:00

abstract：:Spectinomycin dependence in Bacillus subtilis involves two mutations, one conferring drug resistance and the other producing a requirement for spectinomycin for growth. ...

journal_title：Journal of bacteriology

authors： Henkin TM,Campbell KM,Chambliss GH

更新日期：1979-03-01 00:00:00

abstract：:Formation of the Escherichia coli division septum is catalyzed by a number of essential proteins (named Fts) that assemble into a ring-like structure at the future division site. Many of these Fts proteins are intrinsic transmembrane proteins whose functions are largely unknown. In the present study, we attempted to i...

journal_title：Journal of bacteriology

authors： Karimova G,Robichon C,Ladant D

更新日期：2009-01-01 00:00:00

abstract：:Rhizobium japonicum 122 DES bacteroids from soybean nodules possess an active H(2)-oxidizing system that recycles all of the H(2) lost through nitrogenase-dependent H(2) evolution. The addition of 72 muM H(2) to suspensions of bacteroids increased O(2) uptake 300% and the rate of C(2)H(2) reduction 300 to 500%. The op...

journal_title：Journal of bacteriology

authors： Emerich DW,Ruiz-Argüeso T,Ching TM,Evans HJ

更新日期：1979-01-01 00:00:00

abstract：:The heat-stable enterotoxin (ST) produced by enterotoxigenic Escherichia coli is an extracellular peptide toxin that evokes watery diarrhea in the host. Two types of STs, STI and STII, have been found. Both STs are synthesized as precursor proteins and are then converted to the active forms with intramolecular disulfi...

journal_title：Journal of bacteriology

authors： Yamanaka H,Kobayashi H,Takahashi E,Okamoto K

更新日期：2008-12-01 00:00:00

abstract：:Transmembrane bacterial chemoreceptors are extended, rod-shaped homodimers with ligand-binding sites at one end and interaction sites for signaling complex formation and histidine kinase control at the other. There are atomic-resolution structures of chemoreceptor fragments but not of intact, membrane-inserted recepto...

journal_title：Journal of bacteriology

authors： Akkaladevi N,Bunyak F,Stalla D,White TA,Hazelbauer GL

更新日期：2018-02-07 00:00:00

abstract：:In stationary phase, 95% of the fructosyltransferase (FTase) activity of Streptococcus salivarius ATCC 25975 was found associated with the cells. Within the first 15 min after inoculation into fresh medium, the specific activity of cell-associated FTase decreased by 92% of its initial value. After this period of initi...

journal_title：Journal of bacteriology

authors： Jacques NA,Wittenberger CL

更新日期：1981-12-01 00:00:00

abstract：:A comparison of the spectra of spontaneous growth-dependent and adaptive mutations in ebgR shows that both spectra are dominated by insertion sequence (IS)-mediated mutations. The difference between growth-dependent mutations (61% IS mediated) and adaptive mutations (80% IS mediated) is highly significant (P < 0.0001)...

journal_title：Journal of bacteriology

authors： Hall BG

更新日期：1999-02-01 00:00:00

abstract：:Poly-beta-hydroxybutyrate (PHB) synthesis in a cyanobacterium, Synechococcus sp. strain MA19, is controlled at the enzyme level and is dependent on the C/N balance in the culture medium. The control involves at least two enzymes. The first enzyme is PHB synthase. Little PHB synthase activity was detected in crude extr...

journal_title：Journal of bacteriology

authors： Miyake M,Kataoka K,Shirai M,Asada Y

更新日期：1997-08-01 00:00:00

abstract：:Three plasmid-mediated chloramphenicol acetyltransferases isolated from different Haemophilus influenzae strains were purified and characterized. All three enzymes had properties in common with the gram-negative family of chloramphenicol acetyltransferase. The Haemophilus enzymes and the enteric type II enzyme were se...

journal_title：Journal of bacteriology

authors： Roberts M,Corney A,Shaw WV

更新日期：1982-08-01 00:00:00

abstract：:A novel of Escherichia coli endopeptidase was used for a selective partial hydrolysis of the peptide bridges which interlink the glycan chains in E. coli sacculi. The loosening of the murein network revealed, in the electron microscope, a preferential orientation of the glycan chains, more or less perpendicular to the...

journal_title：Journal of bacteriology

authors： Verwer RW,Nanninga N,Keck W,Schwarz U

更新日期：1978-11-01 00:00:00

abstract：:We have constructed a series of broad-host-range plasmids which use "visual screens" to detect promoter activity. These plasmids contain the pMB1 and pRO1600 origins of replication and are capable of replicating in a wide range of gram-negative bacteria. The genes encoding beta-galactosidase and alkaline phosphatase f...

journal_title：Journal of bacteriology

authors： Farinha MA,Kropinski AM

更新日期：1990-06-01 00:00:00

abstract：:Scanning electron microscopy has been employed to examine events in the release and development of mitospores of the aquatic fungus, Allomyces arbuscula. Among the salient features of spore release from the mitosporangium is the digestion of the inner matrix of the exit papillum. Hydrolysis appears to begin at the out...

journal_title：Journal of bacteriology

authors： Seale TW,Delehanty J,Runyan RB

更新日期：1974-12-01 00:00:00

abstract：:Through hybridization of available probes, we have added nine genes to the macrorestriction map of the Haloferax mediterranei chromosome and five genes to the contig map of Haloferax volcanii. Additionally, we hybridized 17 of the mapped cosmid clones from H. volcanii to the H. mediterranei genome. The resulting 35-po...

journal_title：Journal of bacteriology

authors： López-García P,St Jean A,Amils R,Charlebois RL

更新日期：1995-03-01 00:00:00

abstract：:The Salmonella typhimurium LT2 ilvYC genes were studied by fusion of each gene to the Escherichia coli K-12 galK gene. The expression of ilvY and ilvC could then be determined by measurement of the galK-encoded galactokinase enzyme. The promoter for ilvC, pC, was located by this technique to a 0.42-kilobase BglII-EcoR...

journal_title：Journal of bacteriology

authors： Blazey DL,Burns RO

更新日期：1984-09-01 00:00:00

abstract：:It has been suggested that catalase-peroxidase plays an important role in several aspects of mycobacterial metabolism and is a virulence factor in the main pathogenic mycobacteria. In this investigation, we studied genes encoding for this protein in the fast-growing opportunistic pathogen Mycobacterium fortuitum. Nucl...

journal_title：Journal of bacteriology

authors： Menéndez MC,Ainsa JA,Martín C,García MJ

更新日期：1997-11-01 00:00:00

abstract：:A new osmotically inducible gene in Escherichia coli, osmY, was induced 8- to 10-fold by hyperosmotic stress and 2- to 3-fold by growth in complex medium. The osmY gene product is a periplasmic protein which migrates with an apparent molecular mass of 22 kDa on sodium dodecyl sulfate-polyacrylamide gels. A genetic fus...

journal_title：Journal of bacteriology

authors： Yim HH,Villarejo M

更新日期：1992-06-01 00:00:00

abstract：:Genetic studies have identified a specificity domain for prohead binding in the C-terminal 32 amino acids of gpA, the large subunit of bacteriophage lambda terminase (S. Frackman, D. A. Siegele, and M. Feiss, J. Mol. Biol. 180:283-300, 1984). In the present work, an amber mutation, Aam42, in the fifth-to-last codon of...

journal_title：Journal of bacteriology

authors： Sippy J,Feiss M

更新日期：1992-02-01 00:00:00

abstract：:The inducible temperate bacteriophage phi75 and a clear-plaque-forming variant, phi75C1, mediated transduction of a 4.4 X 10(6)-dalton multicopy Bacillus pumilus plasmid, pPL10, at frequencies of 10(-5) to 10(-6) transductants per plaque-forming unit. phi75- and phi75C1-mediated transduction of several chromosome mark...

journal_title：Journal of bacteriology

authors： Bramucci MG,Lovett PS

更新日期：1977-09-01 00:00:00

abstract：:The biosynthesis of the thaxtomin cyclic dipeptide phytotoxins proceeds nonribosomally via the thiotemplate mechanism. Acyladenylation, thioesterification, N-methylation, and cyclization of two amino acid substrates are catalyzed by the txtAB-encoded thaxtomin synthetase. Nucleotide sequence analysis of the region 3' ...

journal_title：Journal of bacteriology

authors： Healy FG,Krasnoff SB,Wach M,Gibson DM,Loria R

更新日期：2002-04-01 00:00:00

abstract：:Undecyl acetate esterase has been purified from Pseudomonas cepacia grown on the methyl ketone, 2-tridecanone. The K(m) for undecyl acetate was 2.3 x 10(-2) M. Polyacrylamide gel electrophoresis indicated that two esterase bands were being recovered during purification. These bands were separated by preparative polyac...

journal_title：Journal of bacteriology

authors： Shum AC,Markovetz AJ

更新日期：1974-06-01 00:00:00

abstract：:The restriction systems McrA and McrB of Escherichia coli K-12 are known to attack DNA containing modified cytosine. In strains lacking both activities, however, we observed that DNA methylated at CG dinucleotides (as is mammalian DNA) was still significantly restricted. We show that this substantial barrier to the ac...

journal_title：Journal of bacteriology

authors： Kelleher JE,Raleigh EA

更新日期：1991-08-01 00:00:00

abstract：:Clinical isolates of the porcine pathogen Actinobacillus pleuropneumoniae often form adherent colonies on agar plates due to expression of an operon, pgaABCD, encoding a poly-beta-1,6-N-acetyl-D-glucosamine (PGA) extracellular matrix. The adherent colony phenotype, which correlates with the ability to form biofilms on...

journal_title：Journal of bacteriology

authors： Bossé JT,Sinha S,Li MS,O'Dwyer CA,Nash JH,Rycroft AN,Kroll JS,Langford PR

更新日期：2010-05-01 00:00:00

abstract：:Bacterial pathogenesis depends on changes in metabolic and virulence gene expression in response to changes within a pathogen's environment. The plague-causing pathogen, Yersinia pestis, requires expression of the gene encoding the Pla protease for progression of pneumonic plague. The catabolite repressor protein Crp,...

journal_title：Journal of bacteriology

authors： Ritzert JT,Lathem WW

更新日期：2018-05-09 00:00:00