Proteolytic cleavage of the FlhB homologue YscU of Yersinia pseudotuberculosis is essential for bacterial survival but not for type III secretion.

abstract：:Mutation of a conserved His-157 in the second pore loop of KtrB drastically reduced the activity of the K+ transporter from Synechocystis sp. strain PCC 6803. This result suggests that His-157 plays an essential role in the K+ transport activity of the transporter system. ...

journal_title：Journal of bacteriology

authors： Zulkifli L,Uozumi N

更新日期：2006-11-01 00:00:00

abstract：:Caulobacter crescentus cells adhere to surfaces by using an extremely strong polar adhesin called the holdfast. The polysaccharide component of the holdfast is comprised in part of oligomers of N-acetylglucosamine. The genes involved in the export of the holdfast polysaccharide and the anchoring of the holdfast to the...

journal_title：Journal of bacteriology

authors： Toh E,Kurtz HD Jr,Brun YV

更新日期：2008-11-01 00:00:00

abstract：:Escherichia coli exhibits a wide range of lifestyles encompassing commensalism and various pathogenic behaviors which its highly dynamic genome contributes to develop. How environmental and host factors shape the genetic structure of E. coli strains remains, however, largely unknown. Following a previous study of E. c...

journal_title：Journal of bacteriology

authors： Vieira G,Sabarly V,Bourguignon PY,Durot M,Le Fèvre F,Mornico D,Vallenet D,Bouvet O,Denamur E,Schachter V,Médigue C

更新日期：2011-03-01 00:00:00

abstract：:Five Spirochaeta aurantia chemotaxis mutants were isolated. One mutant (the che-101 mutant) never reversed, one (the che-200 mutant) flexed predominantly, two (the che-300 and che-400-1 mutants) exhibited elevated reversal frequencies, and one (the che-400 mutant) exhibited chemotactically unstimulated behavior simila...

journal_title：Journal of bacteriology

authors： Fosnaugh K,Greenberg EP

更新日期：1989-01-01 00:00:00

abstract：:LamB-LacZ fusion proteins have classically been used in studies of the general secretion pathway of Escherichia coli. Here we describe how increasing signal sequence hydrophobicity routes LamB-LacZ Hyb42-1 to the signal recognition particle (SRP) pathway. Secretion of this hydrophobic fusion variant (H*LamB-LacZ) was ...

journal_title：Journal of bacteriology

authors： Bowers CW,Lau F,Silhavy TJ

更新日期：2003-10-01 00:00:00

abstract：:Benyesh-Melnick, Matilda (Baylor University College of Medicine, Houston, Tex.), Fern Probstmeyer, Robert McCombs, Jean P. Brunschwig, and Vladimir Vonka. Correlation between infectivity and physical virus particles in human cyto-megalovirus. J. Bacteriol. 92:1555-1561. 1966.-Infectivity titers [measured as plaque-for...

journal_title：Journal of bacteriology

authors： Benyesh-Melnick M,Probstmeyer F,McCombs R,Brunschwig JP,Vonka V

更新日期：1966-11-01 00:00:00

abstract：:The pckA gene of Rhizobium meliloti, encoding phosphoenolpyruvate carboxykinase, was isolated from a genomic cosmid library by complementation of the succinate growth phenotype of a Pck- mutant. The gene region was mapped by subcloning and Tn5 insertion mutagenesis. The DNA sequence for a 2-kb region containing the st...

journal_title：Journal of bacteriology

authors： Osterås M,Driscoll BT,Finan TM

更新日期：1995-03-01 00:00:00

abstract：:The degree to which deoxyribonucleic acid segregates nonrandomly has been investigated for Escherichia coli B/r growing in different media. The degree of nonrandom segregation observed is dependent on the medium, with segregation becoming less random as the growth rate decreases. This indicates that there must be some...

journal_title：Journal of bacteriology

authors： Cooper S,Weinberger M

更新日期：1977-04-01 00:00:00

abstract：:In vivo assembly of the Klebsiella aerogenes urease nickel metallocenter requires the presence of UreD, UreF, and UreG accessory proteins and is further facilitated by UreE. Prior studies had shown that urease apoprotein exists in an uncomplexed form as well as in a series of UreD-urease (I.-S. Park, M.B. Carr, and R....

journal_title：Journal of bacteriology

authors： Moncrief MB,Hausinger RP

更新日期：1996-09-01 00:00:00

abstract：:Deletion of the citC gene, coding for isocitrate dehydrogenase, arrests sporulation of Bacillus subtilis at stage I after bipolar localization of the cell division protein FtsZ but before formation of the asymmetric septum. A spontaneous extragenic suppressor mutation that overcame the stage I block was found to map w...

journal_title：Journal of bacteriology

authors： Matsuno K,Sonenshein AL

更新日期：1999-06-01 00:00:00

abstract：:The Staphylococcus aureus autoinducer-2 (AI-2) producer protein LuxS is phosphorylated by the Ser/Thr kinase Stk1 at a unique position, Thr14. The enzymatic activity of the phosphorylated isoform of LuxS was abrogated compared to that of nonphosphorylated LuxS, thus providing the first evidence of an AI-2-producing en...

journal_title：Journal of bacteriology

authors： Cluzel ME,Zanella-Cléon I,Cozzone AJ,Fütterer K,Duclos B,Molle V

更新日期：2010-12-01 00:00:00

abstract：:Functional domain structures of pyocins AP41, S1, and S2 were assigned by examining the functions of chimeric pyocins and deletion derivatives. Pyocins AP41, S1, and S2 are essentially composed of three domains, the receptor-binding domain, the translocation domain, and the DNase domain, in that order from the N termi...

journal_title：Journal of bacteriology

authors： Sano Y,Kobayashi M,Kageyama M

更新日期：1993-10-01 00:00:00

abstract：:Orf20 of the conjugative transposon Tn916 was purified as a chimeric protein fused to maltose binding protein (MBP-Orf20). The chimeric protein possessed endonucleolytic activity, cleaving both strands of the Tn916 origin of conjugal transfer (oriT) at several distinct sites and favoring GT dinucleotides. Incubation o...

journal_title：Journal of bacteriology

authors： Rocco JM,Churchward G

更新日期：2006-03-01 00:00:00

abstract：:Periplasmic membrane fusion proteins (MFPs) are essential components of multidrug efflux pumps and type I protein secretion systems of gram-negative bacteria. Located in the periplasm, MFPs function by creating a physical link between inner membrane transporters and outer membrane channels. The most conserved sequence...

journal_title：Journal of bacteriology

authors： Ge Q,Yamada Y,Zgurskaya H

更新日期：2009-07-01 00:00:00

abstract：:The terminus region of the Caulobacter crescentus chromosome and the dif chromosome dimer resolution site were characterized. The Caulobacter genome contains skewed sequences that abruptly switch strands at dif and may have roles in chromosome maintenance and segregation. Absence of dif or the XerCD recombinase result...

journal_title：Journal of bacteriology

authors： Jensen RB

更新日期：2006-08-01 00:00:00

abstract：:RsbT is an essential component of the pathway that activates the Bacillus subtilis sigma(B) transcription factor in response to physical stress. rsbT is located within an operon that includes the genes for its principal negative regulator (RsbS) and the stress pathway component that it activates (RsbU), as immediate u...

journal_title：Journal of bacteriology

authors： Zhang S,Reeves A,Woodbury RL,Haldenwang WG

更新日期：2005-12-01 00:00:00

abstract：:Klein, Dolph (Rutgers, The State University, New Brunswick, N. J.), and David Pramer. Bacterial dissimilation of streptomycin. J. Bacteriol. 82:505-510. 1961.-The influence of various nutritional and environmental factors on the dissimilation of streptomycin by a pseudomonad isolated from soil was investigated, and co...

journal_title：Journal of bacteriology

authors： KLEIN D,PRAMER D

更新日期：1961-10-01 00:00:00

abstract：:We have extended our previous studies of the DNA sequences required for growth rate-dependent control of rRNA transcription in Escherichia coli. Utilizing a reporter system suitable for evaluation of promoters with low activities, we have found that the core promoter region of rrnB P1 (-41 to +1 with respect to the tr...

journal_title：Journal of bacteriology

authors： Bartlett MS,Gourse RL

更新日期：1994-09-01 00:00:00

abstract：:After heating at 65 C, ribosomes isolated from Bacillus stearothermophilus were strikingly more heat-stable than comparable preparations from Escherichia coli when tested for ability to support polyuridylic acid-directed phenylalanine incorporation at 37 C. The stability of ribosomes was also determined by measurement...

journal_title：Journal of bacteriology

authors： Friedman SM,Axel R,Weinstein IB

更新日期：1967-05-01 00:00:00

abstract：:A transformable strain of Bacillus subtilis 6160, a derivative of B. subtilis 168, produces three kinds of casein hydrolytic enzymes (alkaline protease, neutral protease, and esterase) in a culture medium. B. natto IAM 1212 produces 15 to 20 times as much total proteolytic activity as does B. subtilis. Extracellular p...

journal_title：Journal of bacteriology

authors： Uehara H,Yoneda Y,Yamane K,Maruo B

更新日期：1974-07-01 00:00:00

abstract：:Evident in its name, the gastric pathogen Helicobacter pylori has a helical cell morphology which facilitates efficient colonization of the human stomach. An improved light-focusing strategy allowed us to robustly distinguish even subtle perturbations of H. pylori cell morphology by deviations in light-scattering prop...

journal_title：Journal of bacteriology

authors： Yang DC,Blair KM,Taylor JA,Petersen TW,Sessler T,Tull CM,Leverich CK,Collar AL,Wyckoff TJ,Biboy J,Vollmer W,Salama NR

更新日期：2019-06-21 00:00:00

abstract：:A delta tyrT::kan mutant from Escherichia coli K-12 (DTK-12) shows a transient growth lag that is caused by glycine starvation (U. Michelsen, M. Bösl, T. Dingermann, and H. Kersten, J. Bacteriol. 171:5987-5994, 1989). The same deletion, transduced into the relA1 spoT1 mutant CA274 to construct strain DTC274, caused co...

journal_title：Journal of bacteriology

authors： Bösl M,Kersten H

更新日期：1994-01-01 00:00:00

abstract：:Yeast cells growing on mineral medium plus ammonia and glucose contained high levels of nicotinamide adenine dinucleotide phosphate-dependent glutamate dehydrogenase activity, as measured in crude extracts. After suspension of cells in fresh medium lacking glucose, there was a loss of the glutamate dehydrogenase activ...

journal_title：Journal of bacteriology

authors： Mazón MJ

更新日期：1978-02-01 00:00:00

abstract：:Campylobacter jejuni, a spiral-shaped gram-negative bacterium, is a leading bacterial cause of human food-borne illness. Acute disease is associated with C. jejuni invasion of the intestinal epithelium. Further, maximal host cell invasion requires the secretion of proteins termed Campylobacter invasion antigens (Cia)....

journal_title：Journal of bacteriology

authors： Malik-Kale P,Parker CT,Konkel ME

更新日期：2008-04-01 00:00:00

abstract：:Evidence is presented that progametangia in both the plus and the minus mating types of Mucor mucedo can be induced by one substance, namely (-)-trisporic acid B. A method is described for the determination of the concentration of the sex factors (trisporone, trisporic acid B, trisporic acid C) in mated cultures of Mu...

journal_title：Journal of bacteriology

authors： Van den Ende H,Wiechmann AH,Reyngoud DJ,Hendriks T

更新日期：1970-02-01 00:00:00

abstract：:The Bacillus subtilis ureABC operon encodes homologs of the three subunits of urease enzymes of the family Enterobacteriaceae. Disruption of ureC prevented utilization of urea as a nitrogen source and resulted in a partial growth defect in minimal medium containing limiting amounts of arginine or allantoin as the sole...

journal_title：Journal of bacteriology

authors： Cruz-Ramos H,Glaser P,Wray LV Jr,Fisher SH

更新日期：1997-05-01 00:00:00

abstract：:Mechanisms of Li+ stimulation of proline transport were studied in cells of Escherichia coli 7 and NR70, a mutant of strain 7 lacking adenosine triphosphatase (EC 3.6.1.3). An electrochemical potential difference of Li+ induced in an inward direction of energy-depleted cells caused a transient uptake of proline depend...

journal_title：Journal of bacteriology

authors： Kayama-Gonda Y,Kawasaki T

更新日期：1979-08-01 00:00:00

abstract：:The effect of L-methionine-DL-sulfoximine, an inhibitor of glutamine synthetase, on the formation of nitrate reductase in the wild-type strain of Neurospora in the presence of ammonium ions and of glutamine was studied. Under conditions in which glutamine synthetase was inactivated, it was found that only glutamine co...

journal_title：Journal of bacteriology

authors： Premakumar R,Sorger GJ,Gooden D

更新日期：1980-07-01 00:00:00

abstract：:Using a model system, we have studied deletion formation in Bacillus subtilis. When the staphylococcal plasmids pSA2100 (7.1 kilobases) and pUB110 (4.5 kilobases) were ligated to one another at their unique XbaI sites and transformed into either rec+ or recE4 strains of B. subtilis, an intramolecular recombination eve...

journal_title：Journal of bacteriology

authors： Hahn J,Dubnau D

更新日期：1985-06-01 00:00:00

abstract：:Type 1 fimbriae and flagella have been previously shown to contribute to the virulence of uropathogenic Escherichia coli (UPEC) within the urinary tract. In this study, the relationship between motility and type 1 fimbrial expression was tested for UPEC strain CFT073 by examining the phenotypic effect of fimbrial expr...

journal_title：Journal of bacteriology

authors： Lane MC,Simms AN,Mobley HL

更新日期：2007-08-01 00:00:00