Structural studies of lipooligosaccharides from Haemophilus ducreyi ITM 5535, ITM 3147, and a fresh clinical isolate, ACY1: evidence for intrastrain heterogeneity with the production of mutually exclusive sialylated or elongated glycoforms.

abstract：:Vibrio cholerae is a natural inhabitant of aquatic ecosystems. Some strains of V. cholerae can colonize the human host and cause cholera, a profuse watery diarrhea. The major pathogenicity factors and virulence regulators of V. cholerae are either encoded in mobile genetic elements acquired in the environment (e.g. pa...

journal_title：Journal of bacteriology

authors： Sakib SN,Reddi G,Almagro-Moreno S

更新日期：2018-03-26 00:00:00

abstract：:The fate of 35-S during anaerobic metabolism of [35-S]sulfate, [35-S]thiosulfate, and [35-S]sulfate plus unlabeled thiosulfate by washed cell suspensions of Desulfovibrio spp, and of [35-S]thiosulfate by growing D. desulfuricans was examined. The results appear to be inconsistent with the hypothesis that thiosulfate i...

journal_title：Journal of bacteriology

authors： Chambers LA,Trudinger PA

更新日期：1975-07-01 00:00:00

abstract：:The ftsH gene encodes an ATP- and Zn(2+)-dependent metalloprotease which is anchored to the cytoplasmic membrane via two transmembrane segments in such a way that the very short amino- and the long carboxy termini are exposed to the cytoplasm. Deletion of the ftsH gene in Bacillus subtilis results in a pleiotropic phe...

journal_title：Journal of bacteriology

authors： Wehrl W,Niederweis M,Schumann W

更新日期：2000-07-01 00:00:00

abstract：UNLABELLED:Many bacteria produce secreted iron chelators called siderophores, which can be shared among cells with specific siderophore uptake systems regardless of whether the cell produces siderophores. Sharing secreted products allows freeloading, where individuals use resources without bearing the cost of productio...

journal_title：Journal of bacteriology

authors： Scholz RL,Greenberg EP

更新日期：2015-07-01 00:00:00

abstract：:A method has been developed for studying the specific activity of the pool of S-adenosylmethionine in yeast. The pool reaches half-maximal specific activity within 30 s after the addition of [methyl-3H]methionine. After addition of an excess of nonradioactive methionine, the specific activity of S-adenosylmethionine i...

journal_title：Journal of bacteriology

authors： Warner JR,Morgan SA,Shulman RW

更新日期：1976-03-01 00:00:00

abstract：:The heat shock response in Escherichia coli involves extensive induction of the heat shock proteins, with the concomitant suppression of the synthesis of the non-heat shock proteins. While the induction of the heat shock proteins has been shown to occur primarily at the transcriptional level, the suppression of non-he...

journal_title：Journal of bacteriology

authors： Henry MD,Yancey SD,Kushner SR

更新日期：1992-02-01 00:00:00

abstract：:Approximately 2 x 10(11) viable Pasteurella tularensis cells per ml, contained in suspensions, were killed by exposure to 10(6) r of gamma-radiation. When injected intraperitoneally into mice, the irradiated suspensions initially contained about 10 ld(50) per ml, and immunized mice against challenge with fully virulen...

journal_title：Journal of bacteriology

authors： Landay ME,Wright GG,Pulliam JD,Finegold MJ

更新日期：1968-09-01 00:00:00

abstract：:In wild-type Escherichia coli the activity of the maltose transport system is dependent on a periplasmic maltose-binding protein. It has been possible, however, to isolate mutants in which transport activity is mediated by the membrane components of the system and is no longer dependent on the periplasmic binding prot...

journal_title：Journal of bacteriology

authors： Reyes M,Treptow NA,Shuman HA

更新日期：1986-03-01 00:00:00

abstract：:Inhibition of deoxyribonucleic acid (DNA) synthesis in Escherichia coli by chemical inhibitors or by shifting cultures of temperature-sensitive elongation (dnaE and dnaB) or initiation (dnaA) mutants to nonpermissive conditions led to greatly increased synthesis of the enzyme ribonucleoside diphosphate reductase, whic...

journal_title：Journal of bacteriology

authors： Filpula D,Fuchs JA

更新日期：1977-04-01 00:00:00

abstract：:Shapira, Jacob (Consolidated Veterans Administration Hospital, Little Rock, Ark.), Lois Lowden, and Ralph Hale. Inhibition of a thymine-deficient mutant of Escherichia coli by 5-substituted uracils. J. Bacteriol. 83:919-923. 1962.-Small inocula of well-washed cells of a thymine-requiring mutant of Escherichia coli wer...

journal_title：Journal of bacteriology

authors： SHAPIRA J,LOWDEN L,HALE R

更新日期：1962-04-01 00:00:00

abstract：:Martin, Alice J. (Nassau County Department of Health, Hempstead, N.Y.), and Margaret O'Brien. Detection of enteropathogenic Escherichia coli in fecal cultures by use of a modified fluorescent-antibody technique. J. Bacteriol. 89:570-573. 1965.-The application of the fluorescent-antibody (FA) technique to cultures of f...

journal_title：Journal of bacteriology

authors： MARTIN AJ,O'BRIEN M

更新日期：1965-03-01 00:00:00

abstract：:The mechanisms involved in the virulence of Yersinia pestis, the plague pathogen, are not fully understood. In previous research, we found that a Y. pestis mutant lacking the HicB3 (YPO3369) putative orphan antitoxin was attenuated for virulence in a murine model of bubonic plague. Toxin-antitoxin systems (TASs) are w...

journal_title：Journal of bacteriology

authors： Bibi-Triki S,Li de la Sierra-Gallay I,Lazar N,Leroy A,Van Tilbeurgh H,Sebbane F,Pradel E

更新日期：2014-11-01 00:00:00

abstract：:N15 is the only bacteriophage of Escherichia coli known to lysogenize as a linear plasmid. Clear-plaque mutations lie in at least two regions of the 46-kb genome. We have cloned, sequenced, and characterized the primary immunity region, immB. This region contains a gene, cB, whose product shows homology to lambdoid ph...

journal_title：Journal of bacteriology

authors： Lobocka MB,Svarchevsky AN,Rybchin VN,Yarmolinsky MB

更新日期：1996-05-01 00:00:00

abstract：:Methanol dehydrogenase, the enzyme that oxidizes methanol to formaldehyde in gram-negative methylotrophs, contains the prosthetic group pyrroloquinoline quinone (PQQ). To begin to analyze how the synthesis of PQQ is coordinated with the production of other methanol dehydrogenase components, the transcription of one of...

journal_title：Journal of bacteriology

authors： Ramamoorthi R,Lidstrom ME

更新日期：1995-01-01 00:00:00

abstract：:A cloned cytolytic determinant from the genome of Bacillus cereus GP-4 has been characterized at the molecular level. Nucleotide sequence determination revealed the presence of two open reading frames. Both open reading frames were found by deletion and complementation analysis to be necessary for expression of the he...

journal_title：Journal of bacteriology

authors： Gilmore MS,Cruz-Rodz AL,Leimeister-Wächter M,Kreft J,Goebel W

更新日期：1989-02-01 00:00:00

abstract：:In Bacillus subtilis, carbon catabolite repression (CCR) of many genes is mediated at cis-acting carbon repression elements (cre) by the catabolite repressor protein CcpA. Mutations in transcription-repair coupling factor (mfd) partially relieve CCR at cre sites located downstream of transcriptional start sites by abo...

journal_title：Journal of bacteriology

authors： Zalieckas JM,Wray LV Jr,Fisher SH

更新日期：1998-12-01 00:00:00

abstract：:The genes for the beta, beta', and seven sigma factor subunits of RNA polymerase, for elongation factors EF-Tu1 and EF-Tu3, and for six rRNA operons were mapped on the combined genetic and physical map of the Streptomyces coelicolor chromosome. Like the previously mapped tRNA genes, the RNA polymerase and rRNA genes m...

journal_title：Journal of bacteriology

authors： van Wezel GP,Buttner MJ,Vijgenboom E,Bosch L,Hopwood DA,Kieser HM

更新日期：1995-01-01 00:00:00

abstract：:To isolate genes from Escherichia coli which regulate the labile hydrogenase activity, a plasmid library was used to transform hydL mutants lacking the labile hydrogenase. A single type of gene, designated hydG, was isolated. This gene also partially restored the hydrogenase activity in hydF mutants (which are defecti...

journal_title：Journal of bacteriology

authors： Stoker K,Reijnders WN,Oltmann LF,Stouthamer AH

更新日期：1989-08-01 00:00:00

abstract：:When Agrobacterium tumefaciens cells grown in the presence of tritiated thymidine to label specifically the bacterial deoxyribonucleic acid (DNA) are incubated with carrot root tissue for short periods of time, an appreciable fraction of the label becomes firmly associated with the root tissue. Such association is not...

journal_title：Journal of bacteriology

authors： Yajko DM,Hegeman GD

更新日期：1971-12-01 00:00:00

abstract：:Photorhabdus is a genus of gram-negative Enterobacteriaceae that is pathogenic to insect larvae while also maintaining a mutualistic relationship with nematodes from the family Heterorhabditis, where the bacteria occupy the gut of the infective juvenile (IJ) stage of the nematode. In this study we describe the identif...

journal_title：Journal of bacteriology

authors： Bennett HP,Clarke DJ

更新日期：2005-01-01 00:00:00

abstract：:Upon prolonged exposure to cholate and other toxic compounds, Lactococcus lactis develops a multidrug resistance phenotype that has been attributed to an elevated expression of the heterodimeric ABC-type multidrug transporter LmrCD. To investigate the molecular basis of bile acid resistance in L. lactis and to evaluat...

journal_title：Journal of bacteriology

authors： Zaidi AH,Bakkes PJ,Lubelski J,Agustiandari H,Kuipers OP,Driessen AJ

更新日期：2008-11-01 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：:In cells of Leuconostoc oenos, the fermentation of L-malic acid generates both a transmembrane pH gradient, inside alkaline, and an electrical potential gradient, inside negative. In resting cells, the proton motive force ranged from -170 mV to -88 mV between pH 3.1 and 5.6 in the presence Of L-malate. Membrane potent...

journal_title：Journal of bacteriology

authors： Salema M,Lolkema JS,San Romão MV,Lourero Dias MC

更新日期：1996-06-01 00:00:00

abstract：:Recipient (F(-)) cells of Escherichia coli are sensitive to an excess of Hfr donor cells. This phenomenon of lethal zygosis is associated with conjugation and is observed as a continuous fall in F(-) viable cells during liquid mating, or as inhibition of F(-) growth on solid media. One class of survivors, which arose ...

journal_title：Journal of bacteriology

authors： Skurray RA,Reeves P

更新日期：1974-01-01 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：:Single-celled organisms must survive exposure to environmental extremes. Perhaps one of the most variable and potentially life-threatening changes that can occur is that of a rapid and acute decrease in external osmolarity. This easily translates into several atmospheres of additional pressure that can build up within...

journal_title：Journal of bacteriology

authors： Booth IR,Blount P

更新日期：2012-09-01 00:00:00

abstract：:Salmonella enterica degrades 1,2-propanediol (1,2-PD) in a coenzyme B12 (adenosylcobalamin, AdoCbl)-dependent fashion. Salmonella obtains AdoCbl by assimilation of complex precursors, such as vitamin B12 and hydroxocobalamin. Assimilation of these compounds requires reduction of their central cobalt atom from Co3+ to ...

journal_title：Journal of bacteriology

authors： Cheng S,Bobik TA

更新日期：2010-10-01 00:00:00

abstract：:This article contains an analysis of a version of the well-known inhibitor-dilution model for the control of initiation of chromosome replication in bacteria. According to this model, an unstable inhibitor interacts with an initiation primer in a hit-and-destroy fashion to prevent successful initiation; both constitue...

journal_title：Journal of bacteriology

authors： Margalit H,Grover NB

更新日期：1987-11-01 00:00:00

abstract：:Activities of gamma-butyrobetaine hydroxylase and carnitine dehydrogenase were low in cells of Pseudomonas sp. AK 1 grown in the absence of their respective substrates. ...

journal_title：Journal of bacteriology

authors： Lindstedt G,Lindstedt S,Midtvedt T,Tofft M

更新日期：1970-03-01 00:00:00

abstract：:Microarray studies of the Escherichia coli response to nitric oxide and nitrosative stress have suggested that additional transcriptional regulators of this response remain to be characterized. We identify here the product of the yjeB gene as a negative regulator of the transcription of the ytfE, hmpA and ygbA genes, ...

journal_title：Journal of bacteriology

authors： Bodenmiller DM,Spiro S

更新日期：2006-02-01 00:00:00