Regulation of bacteriocin production in Streptococcus mutans by the quorum-sensing system required for development of genetic competence.

abstract：:Das, S. K. (University of Calcutta, Calcutta, India) and G. C. Chatterjee. Pyrithiamine adaptation of Staphylococcus aureus. I. Adaptation and carbohydrate utilization. J. Bacteriol. 83:1251-1259. 1962.-Staphylococcus aureus has been adapted to pyrithiamine, a thiamine analogue; as a result of this adaptation, the col...

journal_title：Journal of bacteriology

authors： DAS SK,CHATTERJEE GC

更新日期：1962-06-01 00:00:00

abstract：:In Escherichia coli, T:G mismatches in specific contexts are corrected by a very short patch (VSP) repair system. Previous studies have shown that the product of gene vsr mediates correction of T:G to C:G in the 5'CTAGG/3'GGTCC context and in some related contexts. Amber mutations that arose in CAG sequences in gene c...

journal_title：Journal of bacteriology

authors： Lieb M,Rehmat S

更新日期：1995-02-01 00:00:00

abstract：:The segrosome is the nucleoprotein complex that mediates accurate plasmid segregation. In addition to its multifunctional role in segrosome assembly, the ParG protein of multiresistance plasmid TP228 is a transcriptional repressor of the parFG partition genes. ParG is a homodimeric DNA binding protein, with C-terminal...

journal_title：Journal of bacteriology

authors： Zampini M,Derome A,Bailey SE,Barillà D,Hayes F

更新日期：2009-06-01 00:00:00

abstract：:Thiamine pyrophosphate (TPP) is synthesized de novo in Salmonella typhimurium and is a required cofactor for many enzymes in the cell. Five kinase activities have been implicated in TPP synthesis, which involves joining a 4-methyl-5-(beta-hydroxyethyl)thiazole (THZ) moiety and a 4-amino-5-hydroxymethyl-2-methylpyrimid...

journal_title：Journal of bacteriology

authors： Petersen LA,Downs DM

更新日期：1997-08-01 00:00:00

abstract：:Phosphoenolypyruvate-dependent maltose:phosphotransferase activity was induced in cells of Fusobacterium mortiferum ATCC 25557 during growth on maltose. The disaccharide was rapidly metabolized by washed cells maintained under anaerobic conditions, but fermentation ceased immediately upon exposure of the cell suspensi...

journal_title：Journal of bacteriology

authors： Robrish SA,Fales HM,Gentry-Weeks C,Thompson J

更新日期：1994-06-01 00:00:00

abstract：:DNA sequence analysis of the modABCD operon of Escherichia coli revealed the presence of four open reading frames. The first gene, modA, codes for a 257-amino-acid periplasmic binding protein enunciated by the presence of a signal peptide-like sequence. The second gene (modB) encodes a 229-amino-acid protein with a po...

journal_title：Journal of bacteriology

authors： Maupin-Furlow JA,Rosentel JK,Lee JH,Deppenmeier U,Gunsalus RP,Shanmugam KT

更新日期：1995-09-01 00:00:00

abstract：:Streptococcus mutans is a key contributor to the formation of the extracellular polysaccharide (EPS) matrix in dental biofilms. The exopolysaccharides, which are mostly glucans synthesized by streptococcal glucosyltransferases (Gtfs), provide binding sites that promote accumulation of microorganisms on the tooth surfa...

journal_title：Journal of bacteriology

authors： Koo H,Xiao J,Klein MI,Jeon JG

更新日期：2010-06-01 00:00:00

abstract：:An open-reading-frame fragment of a Methylobacterium sp. strain AM1 gene (moxF) encoding a portion of the methanol dehydrogenase structural protein has been used as a hybridization probe to detect similar sequences in a variety of methylotrophic bacteria. This hybridization was used to isolate clones containing putati...

journal_title：Journal of bacteriology

authors： Stephens RL,Haygood MG,Lidstrom ME

更新日期：1988-05-01 00:00:00

abstract：:The cobB function of Salmonella typhimurium LT2 was defined in vivo as an alternative activity for the nicotinic acid mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase enzyme (CobT), which is involved in the assembly of the nucleotide loop of cobalamin in this bacterium (J. R. Trzebiatowski, G. A. O'T...

journal_title：Journal of bacteriology

authors： Tsang AW,Escalante-Semerena JC

更新日期：1996-12-01 00:00:00

abstract：:The nitrogen assimilation control protein (NAC) binds to a site within the promoter region of the histidine utilization operon (hutUH) of Klebsiella aerogenes, and NAC bound at this site activates transcription of hutUH. This NAC-binding site was characterized by a combination of random and directed DNA mutagenesis. M...

journal_title：Journal of bacteriology

authors： Pomposiello PJ,Janes BK,Bender RA

更新日期：1998-02-01 00:00:00

abstract：:The Escherichia coli beta-galactosidase enzyme was used as a reporter molecule for genetic fusions in Rhodobacter capsulatus. DNA fragments that were from the upstream region of the hydrogenase structural operon hupSLM and contained 5' hupS sequences were fused in frame to a promoterless lacZ gene, yielding fusion pro...

journal_title：Journal of bacteriology

authors： Colbeau A,Vignais PM

更新日期：1992-07-01 00:00:00

abstract：:Heat, salinity, or osmotic stress influenced protein synthesis in nitrogen-fixing Anabaena sp. strain L-31. Salinity and osmotic stresses were identical and specifically induced 15 polypeptides. Four polypeptides were unique to heat shock, and four other polypeptides were induced under every stress. The results demons...

journal_title：Journal of bacteriology

authors： Bhagwat AA,Apte SK

更新日期：1989-09-01 00:00:00

abstract：:We reported previously that a Salmonella enterica serovar Enteritidis dam mutant expressing a truncated Dam protein does not agglutinate in the presence of specific antibodies against O9 polysaccharide. Here we investigate the participation of Dam in lipopolysaccharide (LPS) synthesis in Salmonella. The LPS O-antigen ...

journal_title：Journal of bacteriology

authors： Sarnacki SH,Marolda CL,Noto Llana M,Giacomodonato MN,Valvano MA,Cerquetti MC

更新日期：2009-11-01 00:00:00

abstract：:PacI and SpeI restriction maps were obtained for the two chromosomes of each of the six species of the genus Brucella: B. melitensis, B. abortus, B. suis, B. canis, B. ovis, and B. neotomae. Three complementary techniques were used: hybridization with the two replicons as probes, cross-hybridization of restriction fra...

journal_title：Journal of bacteriology

authors： Michaux-Charachon S,Bourg G,Jumas-Bilak E,Guigue-Talet P,Allardet-Servent A,O'Callaghan D,Ramuz M

更新日期：1997-05-01 00:00:00

abstract：:Mycoplasma pneumoniae exhibits a novel form of gliding motility that is mediated by the terminal organelle, a differentiated polar structure. Given that genes known to be involved in gliding in other organisms are absent in M. pneumoniae, random transposon mutagenesis was employed to generate mutants with gliding-defi...

journal_title：Journal of bacteriology

authors： Page CA,Krause DC

更新日期：2013-04-01 00:00:00

abstract：:The pbpB gene product penicillin-binding protein 3 (PBP3) of Escherichia coli is one of the major targets of beta-lactam antibiotics. At the permissive temperature, the temperature-sensitive pbpBr1 mutant, which was obtained after selection for increased resistance to cephalexin, shows a dramatic change in shape which...

journal_title：Journal of bacteriology

authors： Taschner PE,Ypenburg N,Spratt BG,Woldringh CL

更新日期：1988-10-01 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：:Transcription of the tryptophanase (tna) operon of Escherichia coli is regulated by catabolite repression and tryptophan-induced transcription antitermination. Induction results from ribosome stalling after translation of tnaC, the coding region for a 24-residue leader peptide. The last sense codon of tnaC, proline co...

journal_title：Journal of bacteriology

authors： Gong M,Gong F,Yanofsky C

更新日期：2006-03-01 00:00:00

abstract：:Listeria monocytogenes has caused numerous human outbreaks. Here we report draft genomes of L. monocytogenes J1816 and J1-220, which belong to epidemic clones II and IV, respectively. Whole-genome sequence analysis of these strains provides a tool for studying the short-term evolution of these epidemic clones. ...

journal_title：Journal of bacteriology

authors： Chen Y,Strain EA,Allard M,Brown EW

更新日期：2011-07-01 00:00:00

abstract：:In Klebsiella aerogenes, arylsulfatase synthesis was repressed by inorganic sulfate, sulfite, sulfide, thiosulfate, and cysteine, but not by methionine under normal growth conditions. We isolated cysteine-requiring mutants (Cys minus), and mutants (AtsS minus, AtsR minus) in which the regulation of arylsulfatase synth...

journal_title：Journal of bacteriology

authors： Adachi T,Murooka Y,Harada T

更新日期：1975-01-01 00:00:00

abstract：:Transition metals are essential for life but are toxic when in excess. Metal ion intoxication may result from the mismetallation of essential metal-dependent enzymes with a noncognate metal. To begin to identify enzymes and processes that are susceptible to mismetallation, we have selected for strains with increased r...

journal_title：Journal of bacteriology

authors： Pi H,Wendel BM,Helmann JD

更新日期：2020-03-11 00:00:00

abstract：:Xenorhabdus nematophilus, a gram-negative bacterium, is a mutualist of Steinernema carpocapsae nematodes and a pathogen of larval-stage insects. We use this organism as a model of host-microbe interactions to identify the functions bacteria require for mutualism, pathogenesis, or both. In many gram-negative bacteria, ...

journal_title：Journal of bacteriology

authors： Vivas EI,Goodrich-Blair H

更新日期：2001-08-01 00:00:00

abstract：:A strain of Veillonella parvula M4, which grows readily in lactate broth without a requirement for carbon dioxide, has been isolated from the oral cavity. Anaerobic, washed cells of this organism fermented sodium lactate to the following products (moles/100 moles of lactate): propionate, 66; acetate, 40; carbon dioxid...

journal_title：Journal of bacteriology

authors： Ng SK,Hamilton IR

更新日期：1971-03-01 00:00:00

abstract：:Vegetative cells and cysts of Azotobacter vinelandii 12837 were prepared for electron microscopy by several methods assumed to preserve structural details destroyed by techniques previously reported in the literature. Examination of large numbers of cells and cysts by these methods revealed four structural details not...

journal_title：Journal of bacteriology

authors： Vela GR,Cagle GD,Holmgren PR

更新日期：1970-11-01 00:00:00

abstract：:Spo0A is a DNA binding protein in Bacillus subtilis required for the activation of spoIIG and other promoters at the onset of endospore formation. Activation of some of these promoters may involve interaction of Spo0A and the sigmaA subunit of RNA polymerase. Previous studies identified two single-amino-acid substitut...

journal_title：Journal of bacteriology

authors： Buckner CM,Schyns G,Moran CP Jr

更新日期：1998-07-01 00:00:00

abstract：:The methylenetetrahydrofolate dehydrogenase of the amethopterin-resistant strain Streptococcus faecium var. durans A(k) was purified 100-fold. Because it is extremely labile, this enzyme required protection by 1 mm nicotinamide adenine dinucleotide phosphate (NADP(+)) during purification; 0.01 mm EADP(+) with 0.1% bov...

journal_title：Journal of bacteriology

authors： Albrecht AM,Pearce FK,Hutchison DJ

更新日期：1968-05-01 00:00:00

abstract：:Polyribosomes detected in extracts of spores harvested with water also were found in extracts prepared from spores harvested with nonaqueous fluids. ...

journal_title：Journal of bacteriology

authors： Brambl R

更新日期：1975-06-01 00:00:00

abstract：:The ethanol oxidase respiratory chain of Gluconobacter suboxydan was characterized by using G. suboxydans subsp. alpha, a variant species of G. suboxydans incapable of oxidizing ethanol. The membranes of G. suboxydans subsp. alpha exhibited neither alcohol dehydrogenase, ethanol oxidase, nor glucose-ferricyanide oxido...

journal_title：Journal of bacteriology

authors： Matsushita K,Nagatani Y,Shinagawa E,Adachi O,Ameyama M

更新日期：1991-06-01 00:00:00

abstract：:Expression of the Escherichia coli OmpC and OmpF outer membrane proteins is regulated by the osmolarity of the culture media. In contrast, expression of OmpC in Salmonella typhi is not influenced by osmolarity, while OmpF is regulated as in E. coli. To better understand the lack of osmoregulation of OmpC expression in...

journal_title：Journal of bacteriology

authors： Martínez-Flores I,Cano R,Bustamante VH,Calva E,Puente JL

更新日期：1999-01-01 00:00:00

abstract：:Bulk membrane fragments were prepared from cells of Bacillus cereus ATCC 4342 harvested at different stages of growth and sporulation and examined for enzymes involved in electron transport functions. The presence of succinate: DCPIP oxidoreductase (EC 1.3.99.1), succinate: cytochrome c oxidoreductase (EC 1.3.2.1), NA...

journal_title：Journal of bacteriology

authors： Lang DR,Felix J,Lundgren DG

更新日期：1972-06-01 00:00:00