Organization and transcription of the principal sigma gene (rpoDA) of Pseudomonas aeruginosa PAO1: involvement of a sigma 32-like RNA polymerase in rpoDA gene expression.

abstract：:Bacillus anthracis Sterne cured of the pXO1 plasmid had enhanced secreted protease activity during the postexponential phase but no change in hemolytic or lecithinase activities. A zymogen profile revealed at least six proteases, including serine, metal, and perhaps cysteine types. There were similar amounts of protea...

journal_title：Journal of bacteriology

authors： Aronson AI,Bell C,Fulroth B

更新日期：2005-05-01 00:00:00

abstract：:Six peptidase activities have been distinguished electrophoretically in cell extracts of Salmonella typhimurium with the aid of a histochemical stain. The activities can also be partially separated by chromatography on diethylaminoethyl-cellulose. These peptidases show overlapping substrate specificities. Mutants (pep...

journal_title：Journal of bacteriology

authors： Miller CG,Mackinnon K

更新日期：1974-10-01 00:00:00

abstract：:The uptake of homologous DNA by Haemophilus influenzae was studied as a function of the proton motive force in completely competent cultures in the pH range of 6 to 8. The composition and magnitude of the proton motive force were varied by using the ionophores valinomycin and nigericin (in the presence of various pota...

journal_title：Journal of bacteriology

authors： Bremer W,Kooistra J,Hellingwerf KJ,Konings WN

更新日期：1984-03-01 00:00:00

abstract：:Investigation of the chromosomal region downstream of the lacZ gene from Lactobacillus delbrueckii subsp. bulgaricus revealed the presence of a gene (prtB) encoding a proteinase of 1,946 residues with a predicted molecular mass of 212 kDa. The deduced amino acid sequence showed that PrtB proteinase displays significan...

journal_title：Journal of bacteriology

authors： Gilbert C,Atlan D,Blanc B,Portailer R,Germond JE,Lapierre L,Mollet B

更新日期：1996-06-01 00:00:00

abstract：:Flavin-based electron bifurcation has recently been characterized as an essential energy conservation mechanism that is utilized by hydrogenotrophic methanogenic Archaea to generate low-potential electrons in an ATP-independent manner. Electron bifurcation likely takes place at the flavin associated with the α subunit...

journal_title：Journal of bacteriology

authors： Costa KC,Lie TJ,Xia Q,Leigh JA

更新日期：2013-11-01 00:00:00

abstract：:Lysogenization of Salmonella typhimurium with either of the bacteriophages A3 and A4 results in O-acetylation of the L-rhamnose residues of the O-polysaccharide chain of the lipopolysaccharide of the bacterial cell envelope. The O-acetyl group is found on both O-2 and O-3 of the L-rhamnosyl residues. This lysogenic co...

journal_title：Journal of bacteriology

authors： Wollin R,Stocker BA,Lindberg AA

更新日期：1987-03-01 00:00:00

abstract：:A cell-free system from Bacillus thuringiensis was found to actively incorporate phenylalanine into hot trichloroacetic acid-precipitable material in the presence of synthetic polynucleotide, ribosomes, S-100 supernatant, an energy-generating system, and guanosine triphosphate. Phenylalanine incorporation was absolute...

journal_title：Journal of bacteriology

authors： Changchien LM,Aronson JN

更新日期：1970-09-01 00:00:00

abstract：:The yeast-phase cell cycle of Wangiella dermatitidis was studied using flow microfluorimetry and the deoxyribonucleic acid (DNA) synthesis inhibitor hydroxyurea (HU). Exposure of exponential-phase yeastlike cells to 0.1 M HU for 3 to 6 h resulted in the arrest of the cells in DNA synthesis and produced a nearly homoge...

journal_title：Journal of bacteriology

authors： Roberts RL,Szaniszlo PJ

更新日期：1980-11-01 00:00:00

abstract：:Target analyses of the induction of rho(-) mutants indicated that the cytoplasm of an aerobic nonrepressed yeast contains approximately 20 mutable units, whereas repressed cells exhibit approximately 3. Aerobic adaptation of fully repressed cells brings about an increase in these cytoplasmic units which continues afte...

journal_title：Journal of bacteriology

authors： Allen NE,MacQuillan AM

更新日期：1969-03-01 00:00:00

abstract：:The ribosomal proteins from nine species of prokaryotes have been compared by polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate. The stained gels were scanned spectrophotometrically, the weight and number average molecular weights were calculated, and the detailed distribution of the protein...

journal_title：Journal of bacteriology

authors： Sun TT,Bickle TA,Traut RR

更新日期：1972-08-01 00:00:00

abstract：:An m(k) (-)r(k) (-) mutation exerted no measurable effect on 5-bromouracil incorporation by a thymineless derivative of Escherichia coli K. ...

journal_title：Journal of bacteriology

authors： Matney TS,MacDougall NL,Butler MA,Suit JC

更新日期：1970-10-01 00:00:00

abstract：:Chronic lung infections in cystic fibrosis (CF) could be treated more effectively if the effects of antimicrobials on pathogens in situ were known. Here, we compared changes in the microbial community composition and pathogen growth rates in longitudinal studies of seven pediatric CF patients undergoing intravenous an...

journal_title：Journal of bacteriology

authors： Neubauer C,Kasi AS,Grahl N,Sessions AL,Kopf SH,Kato R,Hogan DA,Newman DK

更新日期：2018-11-26 00:00:00

abstract：:In streptococcal species, the key step of competence development is the transcriptional induction of comX, which encodes the alternative sigma factor sigma(X), which positively regulates genes necessary for DNA transformation. In Streptococcus species belonging to the mitis and mutans groups, induction of comX relies ...

journal_title：Journal of bacteriology

authors： Fontaine L,Boutry C,de Frahan MH,Delplace B,Fremaux C,Horvath P,Boyaval P,Hols P

更新日期：2010-03-01 00:00:00

abstract：:Balish, Edward (Argonne National Laboratory, Argonne, Ill.), and George Svihla. Ultraviolet microscopy of Candida albicans. J. Bacteriol. 92:1812-1820. 1966.-Yeast and mycelial strains of Candida albicans were grown in medium supplemented with sulfur amino acids in an effort to determine factors that control the morph...

journal_title：Journal of bacteriology

authors： Balish E,Svihla G

更新日期：1966-12-01 00:00:00

abstract：:A spontaneously arising regulatory mutant of the gluconate system in Escherichia coli was isolated. This mutant became constitutive, probably in one step, for gluconate high-affinity transport, gluconokinase, and gluconate-6-P dehydrase. The mutation involved (gntR18) is cotransducible with asd. Pseudorevertants, deri...

journal_title：Journal of bacteriology

authors： Zwaig N,Nagel de Zwaig R,Istúriz T,Wecksler M

更新日期：1973-05-01 00:00:00

abstract：:Shiga toxin (STX), a bacterial toxin produced by Shigella dysenteriae type 1, is a hexamer composed of five receptor-binding B subunits which encircle an alpha-helix at the carboxyl terminus of the enzymatic A polypeptide. Hybrid toxins constructed by fusing the A polypeptide sequences of STX and Shiga-like toxin type...

journal_title：Journal of bacteriology

authors： Jemal C,Haddad JE,Begum D,Jackson MP

更新日期：1995-06-01 00:00:00

abstract：UNLABELLED:Cell shape has been suggested to play an important role in the regulation of bacterial attachment to surfaces and the formation of communities associated with surfaces. We found that a cardiolipin synthase (Δcls) mutant of the rod-shaped bacterium Rhodobacter sphaeroides--in which synthesis of the anionic, h...

journal_title：Journal of bacteriology

authors： Lin TY,Santos TM,Kontur WS,Donohue TJ,Weibel DB

更新日期：2015-11-01 00:00:00

abstract：:Survivors of nitrosoguanidine-treated cultures of a colicinogenic strain of Salmonella typhimurium were tested for spontaneous production of colicin E1. Of about 1,000 colonies tested, 13 produced no (or very narrow) colicin zones. Four of these isolates proved to be more sensitive to ultraviolet (UV) light, X rays, a...

journal_title：Journal of bacteriology

authors： MacPhee DG

更新日期：1970-10-01 00:00:00

abstract：:The magnetosomes of many magnetotactic bacteria consist of membrane-enveloped magnetite crystals, whose synthesis is favored by a low redox potential. However, the cellular redox processes governing the biomineralization of the mixed-valence iron oxide have remained unknown. Here, we show that in the alphaproteobacter...

journal_title：Journal of bacteriology

authors： Li Y,Katzmann E,Borg S,Schüler D

更新日期：2012-09-01 00:00:00

abstract：:We have developed a general method for determining whether a gene of Escherichia coli is essential for viability. The method requires cloned DNA spanning the gene in question and a reasonably detailed genetic and physical map of the cloned segment. Using this information, one constructs a deletion of the target gene i...

journal_title：Journal of bacteriology

authors： Joyce CM,Grindley ND

更新日期：1984-05-01 00:00:00

abstract：:Two mutations concerned with mannan biosynthesis in the yeast Saccharomyces cerevisiae have been mapping. The mnn2 mutation, which affects the addition to the polysaccharide backbone of the first side-chain D-mannose unit in alpha1-leads to2 linkage, was located on chromosome II linked to the centromere and the gall l...

journal_title：Journal of bacteriology

authors： Ballou DL

更新日期：1975-08-01 00:00:00

abstract：:Isoaspartyl sites, in which an aspartic acid residue is linked to its C-flanking neighbor via its beta-carboxyl side chain, are generally assumed to be an abnormal modification arising as proteins age. The enzyme protein L-isoaspartate methyltransferase (PIMT), present in many bacteria, plants, and animals, catalyzes ...

journal_title：Journal of bacteriology

authors： David CL,Keener J,Aswad DW

更新日期：1999-05-01 00:00:00

abstract：:Analysis of rRNA genes in Vibrio fischeri indicates the presence of eight rRNA gene sets in this organism. It was found that the genes for 5S rRNA, 16S rRNA, and 23S rRNA are organized in operons in the following order: 5' end 16S rRNA 23S RNA 5S rRNA 3' end. Although the operons are homologous, they are not identical...

journal_title：Journal of bacteriology

authors： Amikam D,Kuhn J

更新日期：1987-05-01 00:00:00

abstract：:Mutations in the tcmII-tcmIV region of the Streptomyces glaucescens chromosome block the C-3 and C-8 O-methylations of the polyketide antibiotic tetracenomycin C (Tcm C). The nucleotide sequence of this region reveals the presence of two genes, tcmN and tcmO, whose deduced protein products display similarity to the hy...

journal_title：Journal of bacteriology

authors： Summers RG,Wendt-Pienkowski E,Motamedi H,Hutchinson CR

更新日期：1992-03-01 00:00:00

abstract：:The genes encoding the two isoenzymes of methyl coenzyme M reductase (MRI and MRII) in Methanobacterium thermoautotrophicum delta H have been cloned and sequenced. The MRI-encoding mcr operon (mcrBDCGA) has been located immediately upstream from the mtr operon (mtrEDCBA) that encodes N5-methyltetrahydromethanopterin:c...

journal_title：Journal of bacteriology

authors： Pihl TD,Sharma S,Reeve JN

更新日期：1994-10-01 00:00:00

abstract：:Two different mutations (pabA and pabB) affecting 4-aminobenzoate biosynthesis were obtained in strains of Escherichia coli lacking chorismate mutase and anthranilate synthetase activity, thus allowing study of the pathway of biosynthesis of 4-aminobenzoate by use of cell extracts of strains carrying the pab mutations...

journal_title：Journal of bacteriology

authors： Huang M,Gibson F

更新日期：1970-06-01 00:00:00

abstract：:Although the pervasive soil and water microorganism Pseudomonas aeruginosa demonstrates heightened sensitivity to UV radiation, this species possesses a recA gene that, based on structural and functional properties, could mediate a DNA damage-responsive regulon similar to the SOS regulon of Escherichia coli. To determ...

journal_title：Journal of bacteriology

authors： Warner-Bartnicki AL,Miller RV

更新日期：1992-03-01 00:00:00

abstract：:A bacterium was isolated by elective culture with p-hydroxybenzoate as substrate and nitrate as electron acceptor. It grew either aerobically or anaerobically, by nitrate respiration, on a range of aromatic compounds. The organism was identified as a pseudomonad and was given the trivial name Pseudomonas PN-1. Benzoat...

journal_title：Journal of bacteriology

authors： Taylor BF,Campbell WL,Chinoy I

更新日期：1970-05-01 00:00:00

abstract：:Evidence is reported here that alkalinization of Clostridium acetobutylicum cytoplasm involves hydrogenase activity. A decrease of in vivo hydrogenase activity is accompanied by intracellular accumulation of protons leading to a negative (interior acidic) pH gradient. However, the organism is able to maintain a consta...

journal_title：Journal of bacteriology

authors： Girbal L,Vasconcelos I,Soucaille P

更新日期：1994-10-01 00:00:00

abstract：:Bap (biofilm-associated protein) is a 254-kDa staphylococcal surface protein implicated in formation of biofilms by staphylococci isolated from chronic mastitis infections. The presence of potential EF-hand motifs in the amino acid sequence of Bap prompted us to investigate the effect of calcium on the multicellular b...

journal_title：Journal of bacteriology

authors： Arrizubieta MJ,Toledo-Arana A,Amorena B,Penadés JR,Lasa I

更新日期：2004-11-01 00:00:00