Effects of streptomycin deprivation on enzyme synthesis in streptomycin-dependent Escherichia coli.

abstract：:Transposition is a DNA reorganization reaction potentially deleterious for the host. The frequency of transposition is limited by the amount of transposase. Therefore, strict regulation of a transposase is required to keep control over the destructive multiplication of the mobile element. We have shown previously that...

journal_title：Journal of bacteriology

authors： Hõrak R,Kivisaar M

更新日期：1999-10-01 00:00:00

abstract：:An unusual xylose isomerase produced by Thermoanaerobacterium strain JW/SL-YS 489 was purified 28-fold to gel electrophoretic homogeneity, and the biochemical properties were determined. Its pH optimum distinguishes this enzyme from all other previously described xylose isomerases. The purified enzyme had maximal acti...

journal_title：Journal of bacteriology

authors： Liu SY,Wiegel J,Gherardini FC

更新日期：1996-10-01 00:00:00

abstract：:Our whole-genome microarray studies of Neisseria meningitidis MC58 previously identified a set of 153 genes whose transcription was activated during growth in iron. In this study, Fur-mediated regulation of the iron-activated nspA gene was confirmed, whereas iron-activated regulation of the secY gene was demonstrated ...

journal_title：Journal of bacteriology

authors： Shaik YB,Grogan S,Davey M,Sebastian S,Goswami S,Szmigielski B,Genco CA

更新日期：2007-01-01 00:00:00

abstract：:Carbon catabolite repression (CCR) allows bacteria to alter metabolism in response to the availability of specific sugar sources, and increasing evidence suggests that CCR is involved in regulating virulence gene expression in many pathogens. A scan of the M1 SF370 group A streptococcus (GAS) genome using a Bacillus s...

journal_title：Journal of bacteriology

authors： Almengor AC,Kinkel TL,Day SJ,McIver KS

更新日期：2007-12-01 00:00:00

abstract：:Two types of adhesive fimbriae are expressed by Actinomyces; however, the architecture and the mechanism of assembly of these structures remain poorly understood. In this study we characterized two fimbrial gene clusters present in the genome of Actinomyces naeslundii strain MG-1. By using immunoelectron microscopy an...

journal_title：Journal of bacteriology

authors： Mishra A,Das A,Cisar JO,Ton-That H

更新日期：2007-04-01 00:00:00

abstract：:The DNA sequence of a 3.23-kilobase fragment of the Escherichia coli chromosome encoding biosynthetic arginine decarboxylase (ADC) was determined. This sequence contained the speA open reading frame (ORF) as well as partial speB and metK ORFs. The ADC ORF is 1,974 nucleotides long; the deduced polypeptide contains 658...

journal_title：Journal of bacteriology

authors： Moore RC,Boyle SM

更新日期：1990-08-01 00:00:00

abstract：:Supplementation of the growth medium with high concentrations of NaCl, KCl, or sucrose caused a drastic change in the ratio of the two peptidoglycan-associated major outer membrane proteins of Escherichia coli K-12 in that the amounts of proteins b and c present in cell envelope preparations decreased and increased, r...

journal_title：Journal of bacteriology

authors： Alphen WV,Lugtenberg B

更新日期：1977-08-01 00:00:00

abstract：:An in vitro constructed plasmid, pVH15, consisting of the entire genome of the plasmid ColE1, the tryptophan operon of Escherichia coli, and regions of the bacteriophage PHI80pt190, spontaneously gave rise in E. coli to a mini-ColE1 plasmid consisting of approximately one-half of the ColE1 genome and a small segment o...

journal_title：Journal of bacteriology

authors： Hershfield V,Boyer HW,Chow L,Helinski DR

更新日期：1976-04-01 00:00:00

abstract：:By controlled addition of galactose to synchronized galactose-limited Saccharomyces cerevisiae cultures, the growth rate could be regulated while external conditions were kept constant. By using this method, the G1 phase duration was modulated and expression of cell cycle-regulated genes was investigated. The expressi...

journal_title：Journal of bacteriology

authors： Silljé HH,ter Schure EG,Rommens AJ,Huls PG,Woldringh CL,Verkleij AJ,Boonstra J,Verrips CT

更新日期：1997-11-01 00:00:00

abstract：:The pattern of transcription of the rplKAJLrpoBC gene cluster of Escherichia coli appears to be complex. At least four different promoters and a transcriptional attenuator have been identified. To compare the relative effect of each of the putative promoters and the attenuator on transcription of these genes, we fused...

journal_title：Journal of bacteriology

authors： Ralling G,Linn T

更新日期：1984-04-01 00:00:00

abstract：:The sheath of the filamentous, gliding cyanobacterium Phormidium uncinatum was studied by using light and electron microscopy. In thin sections and freeze fractures the sheath was found to be composed of helically arranged carbohydrate fibrils, 4 to 7 nm in diameter, which showed a substantial degree of crystallinity....

journal_title：Journal of bacteriology

authors： Hoiczyk E

更新日期：1998-08-01 00:00:00

abstract：:In aquatic environments, Caulobacter spp. can be found at the boundary between liquid and air known as the neuston. I report an approach to study temporal features of Caulobacter crescentus colonization and pellicle biofilm development at the air-liquid interface and have defined the role of cell surface structures in...

journal_title：Journal of bacteriology

authors： Fiebig A

更新日期：2019-08-22 00:00:00

abstract：:Spontaneous mutators of Salmonella typhimurium LT2 were generated by inserting the transposable element Tn5 or Tn10 into the bacterial chromosome. Two mutators mapped at the position of the mutH and mutL loci of S. typhimurium, and two other mutators mapped at positions corresponding to the mutS and uvrD loci of Esche...

journal_title：Journal of bacteriology

authors： Shanabruch WG,Behlau I,Walker GC

更新日期：1981-09-01 00:00:00

abstract：:Cells of Candida albicans WO-1 switch frequently and reversibly between two colony-forming phenotypes, white and opaque. In the white form, budding cells appear similar to those of most other strains of C. albicans, but in the opaque form, budding cells are larger, are bean shaped, and possess pimples on the wall. The...

journal_title：Journal of bacteriology

authors： Anderson J,Mihalik R,Soll DR

更新日期：1990-01-01 00:00:00

abstract：:We have developed a method, using laser, optical tweezers and direct microscopic analysis of reproductive potential and membrane integrity, to assess single-cell viability in a stationary-phase Escherichia coli population. It is demonstrated here that a reduction in cell integrity, determined by using the fluorescent ...

journal_title：Journal of bacteriology

authors： Ericsson M,Hanstorp D,Hagberg P,Enger J,Nyström T

更新日期：2000-10-01 00:00:00

abstract：:Aspergillus fumigatus secretes a number of glycosidases into the culture medium when the cells are grown in a mineral salts medium containing guar flour (a galactomannan) as the carbon source. At least some of these glycosidases have been reported to be glycoproteins having N-linked oligosaccharides. In this study, we...

journal_title：Journal of bacteriology

authors： Elbein AD,Mitchell M,Molyneux RJ

更新日期：1984-10-01 00:00:00

abstract：:FK-506-binding proteins (FKBPs), which in T cells are supposed to mediate the immunosuppressive effects of the compounds FK-506 and rapamycin, have been isolated from Streptomyces chrysomallus, S. hygroscopicus subsp. ascomyceticus, and S. hygroscopicus. The latter two strains are producers of ascomycin (the ethyl ana...

journal_title：Journal of bacteriology

authors： Pahl A,Keller U

更新日期：1992-09-01 00:00:00

abstract：:Reference strains from 48 selected serovars representing eight species of Leptospira were examined by two polymerase chain reaction (PCR)-based strategies. First, mapped restriction site polymorphisms (MRSP) were examined in PCR products from portions of rrs (16S rRNA gene) and rrl (23S rRNA gene). Twenty MRSP and 2 l...

journal_title：Journal of bacteriology

authors： Ralph D,McClelland M,Welsh J,Baranton G,Perolat P

更新日期：1993-02-01 00:00:00

abstract：:The nucleotide sequence of the Clostridium thermocellum F1 xynC gene, which encodes the xylanase XynC, consists of 1,857 bp and encodes a protein of 619 amino acids with a molecular weight of 69,517. XynC contains a typical N-terminal signal peptide of 32 amino acid residues, followed by a 165-amino-acid sequence whic...

journal_title：Journal of bacteriology

authors： Hayashi H,Takagi KI,Fukumura M,Kimura T,Karita S,Sakka K,Ohmiya K

更新日期：1997-07-01 00:00:00

abstract：:The activation of the Pm promoter of the meta operon of the TOL plasmid of Pseudomonas putida by its cognate XylS activator protein in the presence and absence of benzoate inducers has been examined in specialized Escherichia coli strains carrying Pm-lacZ fusions and the xylS gene in different configurations in which ...

journal_title：Journal of bacteriology

authors： Kessler B,Herrero M,Timmis KN,de Lorenzo V

更新日期：1994-06-01 00:00:00

abstract：:Flavobacterium johnsoniae cells move rapidly over surfaces by gliding motility. Gliding results from the movement of adhesins such as SprB and RemA along the cell surface. These adhesins are delivered to the cell surface by a Bacteroidetes-specific secretion system referred to as the type IX secretion system (T9SS). G...

journal_title：Journal of bacteriology

authors： Shrivastava A,Johnston JJ,van Baaren JM,McBride MJ

更新日期：2013-07-01 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：:Shewanella oneidensis is a metal reducer that uses the cyclic AMP receptor protein, CRP, to regulate anaerobic respiration. In addition, ArcA(So) is required for anaerobic growth with dimethyl sulfoxide (DMSO) and plays a role in aerobic respiration. The sensor kinase that activates ArcA(So) in S. oneidensis is not kn...

journal_title：Journal of bacteriology

authors： Shroff NP,Charania MA,Saffarini DA

更新日期：2010-06-01 00:00:00

abstract：:Salmonella typhimurium and Escherichia coli from anaerobic cultures displayed tactic responses to gradients of nitrate, fumarate, and oxygen when the appropriate electron transport pathway was present. Such responses were named "electron acceptor taxis" because they are elicited by terminal electron acceptors. Mutant ...

journal_title：Journal of bacteriology

authors： Taylor BL,Miller JB,Warrick HM,Koshland DE Jr

更新日期：1979-11-01 00:00:00

abstract：:Upon cold shock, Escherichia coli cell growth transiently stops. During this acclimation phase, specific cold shock proteins (CSPs) are highly induced. At the end of the acclimation phase, their synthesis is reduced to new basal levels, while the non-cold shock protein synthesis is resumed, resulting in cell growth re...

journal_title：Journal of bacteriology

authors： Yamanaka K,Inouye M

更新日期：2001-05-01 00:00:00

abstract：:Loss of the ability of Pseudomonas syringae pv. "phaseolicola" NPS3121 to elicit a hypersensitive response on tobacco and other nonhost plants was associated with loss of pathogenicity on the susceptible host bean. Eight independent, prototrophic transposon Tn5 insertion mutants which had lost the ability to elicit a ...

journal_title：Journal of bacteriology

authors： Lindgren PB,Peet RC,Panopoulos NJ

更新日期：1986-11-01 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：:The diversity of regulatory systems encoded by bacteria provides an indication of the variety of stresses and interactions that these organisms encounter in nature. We have been investigating how the plant pathogen Pseudomonas syringae pv. tomato DC3000 responds to iron limitation and have focused on the iron starvati...

journal_title：Journal of bacteriology

authors： Markel E,Maciak C,Butcher BG,Myers CR,Stodghill P,Bao Z,Cartinhour S,Swingle B

更新日期：2011-10-01 00:00:00

abstract：:We purified membrane-bound cytochrome c-550 [cytochrome c-550(m)] to an electrophoretically homogeneous state from Nitrobacter winogradskyi. The cytochrome showed peaks at 409 and 525 nm in the oxidized form and peaks at 416, 521, and 550 nm in the reduced form. The molecular weight of the cytochrome was estimated to ...

journal_title：Journal of bacteriology

authors： Nomoto T,Fukumori Y,Yamanaka T

更新日期：1993-07-01 00:00:00

abstract：:In order to examine the potential role of bacterial collagenases in periodontal tissue destruction, we recently isolated a gene, prtC, from Porphyromonas gingivalis ATCC 53977, which expressed collagenase activity (N. Takahashi, T. Kato, and H. K. Kuramitsu, FEMS Microbiol. Lett. 84:135-138, 1991). The nucleotide sequ...

journal_title：Journal of bacteriology

authors： Kato T,Takahashi N,Kuramitsu HK

更新日期：1992-06-01 00:00:00