Effects of homocitrate, homocitrate lactone, and fluorohomocitrate on nitrogenase in NifV- mutants of Azotobacter vinelandii.

abstract：:Formylation of initiator methionyl-tRNA is essential for normal growth of eubacteria. However, under special conditions, it has been possible to initiate protein synthesis with unformylated initiator tRNA even in eubacteria. Earlier studies suggested that the lack of ribothymidine (rT) modification in initiator tRNA m...

journal_title：Journal of bacteriology

authors： Thanedar S,Dineshkumar TK,Varshney U

更新日期：2001-12-01 00:00:00

abstract：:Two genes, nahG and nahW, encoding two independent salicylate 1-hydroxylases have been identified in the naphthalene-degrading strain Pseudomonas stutzeri AN10. While nahG resides in the same transcriptional unit as the meta-cleavage pathway genes, forming the naphthalene degradation lower pathway, nahW is situated ou...

journal_title：Journal of bacteriology

authors： Bosch R,Moore ER,García-Valdés E,Pieper DH

更新日期：1999-04-01 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 biosynthesis of asparaginase II in Saccharomyces cerevisiae is subject to nitrogen catabolite repression. In the present study we examined the physiological effects of glutamate auxotrophy on cellular metabolism and on the nitrogen catabolite repression of asparaginase II. Glutamate auxotrophic cells, incubated wi...

journal_title：Journal of bacteriology

authors： Kang L,Keeler ML,Dunlop PC,Roon RJ

更新日期：1982-07-01 00:00:00

abstract：:Cysteine and methionine availability influences many processes in the cell. In bacteria, transcription of the specific genes involved in the synthesis of these two amino acids is usually regulated by different mechanisms or regulators. Pathways for the synthesis of cysteine and methionine and their interconversion wer...

journal_title：Journal of bacteriology

authors： Sperandio B,Polard P,Ehrlich DS,Renault P,Guédon E

更新日期：2005-06-01 00:00:00

abstract：:In all organisms, chromosome replication is regulated mainly at the initiation step. Most of the knowledge about the mechanisms that regulate replication initiation in bacteria has come from studies on rod-shaped bacteria, such as Escherichia coli and Bacillus subtilisStreptomyces is a bacterial genus that is characte...

journal_title：Journal of bacteriology

authors： Łebkowski T,Wolański M,Ołdziej S,Flärdh K,Zakrzewska-Czerwińska J

更新日期：2020-01-15 00:00:00

abstract：:In Streptococcus mutans, enzyme II(scr) and sucrose-6-phosphate hydrolase are two important enzymes in the transport and metabolism of dietary sucrose. The scr regulon of S. mutans is composed of three genes, scrA and scrB, which code for enzyme II(scr) and sucrose-6-phosphate hydrolase, respectively, and scrR, which ...

journal_title：Journal of bacteriology

authors： Wang B,Kuramitsu HK

更新日期：2003-10-01 00:00:00

abstract：:Staphylococcus pseudintermedius is a member of the coagulase-positive staphylococci and is the commonest cause of canine pyoderma. We report the first genome sequence of S. pseudintermedius, which shows the presence of numerous virulence factors akin to those of the related human pathogen Staphylococcus aureus. ...

journal_title：Journal of bacteriology

authors： Tse H,Tsoi HW,Leung SP,Urquhart IJ,Lau SK,Woo PC,Yuen KY

更新日期：2011-04-01 00:00:00

abstract：:Escherichia coli O55 is an important antigen which is often associated with enteropathogenic E. coli clones. We sequenced the genes responsible for its synthesis and identified genes for O-antigen polymerase, O-antigen flippase, four enzymes involved in GDP-colitose synthesis, and three glycosyltransferases, all by co...

journal_title：Journal of bacteriology

authors： Wang L,Huskic S,Cisterne A,Rothemund D,Reeves PR

更新日期：2002-05-01 00:00:00

abstract：:Valentine, R. C. (University of Illinois, Urbana), H. Drucker, and R. S. Wolfe. Glyoxylate fermentation by Streptococcus allantoicus. J. Bacteriol. 87:241-246. 1964.-Extracts of Streptococcus allantoicus were found to degrade glyoxylate, yielding tartronic semialdehyde and CO(2). Tartronic semialdehyde was prepared ch...

journal_title：Journal of bacteriology

authors： VALENTINE RC,DRUCKER H,WOLFE RS

更新日期：1964-02-01 00:00:00

abstract：:Chromosomal DNAs from exponential-phase and competent cells of Haemophilus influenzae were examined by electron microscopy to determine whether the chromosome undergoes structural changes during competence development. Single-stranded gaps and single-stranded tails formed in chromosomal DNA during competence developme...

journal_title：Journal of bacteriology

authors： McCarthy D,Kupfer DM

更新日期：1987-02-01 00:00:00

abstract：:Protein glycosylation is an important posttranslational modification that occurs in all domains of life. Pilins, the structural components of type IV pili, are O glycosylated in Neisseria meningitidis, Neisseria gonorrhoeae, and some strains of Pseudomonas aeruginosa. In this work, we characterized the P. aeruginosa 1...

journal_title：Journal of bacteriology

authors： Faridmoayer A,Fentabil MA,Mills DC,Klassen JS,Feldman MF

更新日期：2007-11-01 00:00:00

abstract：:Systematic inactivation of pathways involved in DNA alkylation damage repair demonstrated that inactivation of the ada, ogt, tag, uvrA, and mfd genes is required to detect a Salmonella enterica virulence decrease. Furthermore, the fitness of S. enterica, defective in these genes, is lowered only when the bacterium is ...

journal_title：Journal of bacteriology

authors： Alvarez G,Campoy S,Spricigo DA,Teixidó L,Cortés P,Barbé J

更新日期：2010-04-01 00:00:00

abstract：:The molecular mechanisms of regulation of the genes involved in the biosynthesis of cysteine are poorly characterized in Bacillus subtilis and other gram-positive bacteria. In this study we describe the expression pattern of the B. subtilis cysH operon in response to sulfur starvation. A 6.1-kb polycistronic transcrip...

journal_title：Journal of bacteriology

authors： Mansilla MC,Albanesi D,de Mendoza D

更新日期：2000-10-01 00:00:00

abstract：:NADPH is an intermediate in the oxidation of organic compounds coupled to Fe(III) reduction in Geobacter species, but Fe(III) reduction with NADPH as the electron donor has not been studied in these organisms. Crude extracts of Geobacter sulfurreducens catalyzed the NADPH-dependent reduction of Fe(III)-nitrilotriaceti...

journal_title：Journal of bacteriology

authors： Kaufmann F,Lovley DR

更新日期：2001-08-01 00:00:00

abstract：:Twenty-four independent phosphate starvation-inducible (psi) transcriptional fusions made with Mu d1(lacZbla) were analyzed by sequencing the psi::lacZ(Mu d1) chromosomal junctions by using DNAs amplified with the polymerase chain reaction or mini-Mu cloning. Our DNA sequence analysis showed that the MuR DNA in Mu d1 ...

journal_title：Journal of bacteriology

authors： Metcalf WW,Steed PM,Wanner BL

更新日期：1990-06-01 00:00:00

abstract：UNLABELLED:The airways of patients with cystic fibrosis are colonized with diverse bacterial communities that change dynamically during pediatric years and early adulthood. Staphylococcus aureus is the most prevalent pathogen during early childhood, but during late teens and early adulthood, a shift in microbial compos...

journal_title：Journal of bacteriology

authors： Filkins LM,Graber JA,Olson DG,Dolben EL,Lynd LR,Bhuju S,O'Toole GA

更新日期：2015-07-01 00:00:00

abstract：:UDP-N-acetylmuramic acid:L-alanine ligase (MurC) catalyzes the addition of the first amino acid to the cytoplasmic precursor of the bacterial cell wall peptidoglycan. The crystal structures of Haemophilus influenzae MurC in complex with its substrate UDP-N-acetylmuramic acid (UNAM) and Mg(2+) and of a fully assembled ...

journal_title：Journal of bacteriology

authors： Mol CD,Brooun A,Dougan DR,Hilgers MT,Tari LW,Wijnands RA,Knuth MW,McRee DE,Swanson RV

更新日期：2003-07-01 00:00:00

abstract：UNLABELLED:Bacteriophage λ N protein binds boxB RNA hairpins in the nut (N utilization) sites of immediate early λ transcripts and interacts with host factors to suppress transcriptional termination at downstream terminators. In opposition to λ N, the Nun protein of HK022 binds the boxBs of coinfecting λ transcripts, i...

journal_title：Journal of bacteriology

authors： Tawk CS,Ghattas IR,Smith CA

更新日期：2015-11-01 00:00:00

abstract：:The metD D-methionine transporter locus of Escherichia coli was identified as the abc-yaeE-yaeC cluster (now renamed metNIQ genes). The abc open reading frame is preceded by tandem MET boxes bracketed by the -10 and -35 boxes of a promoter. The expression driven by this promoter is controlled by the MetJ repressor and...

journal_title：Journal of bacteriology

authors： Gál J,Szvetnik A,Schnell R,Kálmán M

更新日期：2002-09-01 00:00:00

abstract：:Analyses of Rhizobium meliloti trp auxotrophs suggest that anthranilate biosynthesis by the R. meliloti trpE(G) gene product is necessary during nodule development for establishment of an effective symbiosis. trpE(G) mutants, as well as mutants blocked earlier along this pathway in aromatic amino acid biosynthesis, fo...

journal_title：Journal of bacteriology

authors： Barsomian GD,Urzainqui A,Lohman K,Walker GC

更新日期：1992-07-01 00:00:00

abstract：:The control of men gene expression during growth and sporulation of Bacillus subtilis was examined at the transcriptional level. Two different approaches were used. (i) Steady-state levels of men-specific mRNA were measured directly. (ii) A men'-lacZ gene fusion was constructed. In both cases, it was observed that men...

journal_title：Journal of bacteriology

authors： Miller P,Mueller J,Hill K,Taber H

更新日期：1988-06-01 00:00:00

abstract：:Cells of Pseudomonas aeruginosa resistant to benzalkonium chloride (BC) underwent unique ultrastructural reorganizations when they were grown in the presence of 1 mg of BC/ml. The resistant cells usually contained a single, centrally positioned pseudovacuole. The pseudovacuole was surrounded by a diffuse substance tha...

journal_title：Journal of bacteriology

authors： Hoffmann HP,Geftic SG,Gelzer J,Heymann H,Adair FW

更新日期：1973-01-01 00:00:00

abstract：:Growth of Escherichia coli B in simple media enriched with Mn(II) resulted in the elevation of the manganese-containing superoxide dismutase, whereas growth in such medium enriched with iron caused increased content of the iron-containing superoxide dismutase. Enrichment of the medium with Co(II), Cu(II), Mo(VI), Zn(I...

journal_title：Journal of bacteriology

authors： Pugh SY,DiGuiseppi JL,Fridovich I

更新日期：1984-10-01 00:00:00

abstract：:Overexpression of vsr in Escherichia coli stimulates transition and frameshift mutations. The pattern of mutations suggests that mutagenesis is due to saturation or inactivation of dam-directed mismatch repair. ...

journal_title：Journal of bacteriology

authors： Doiron KM,Viau S,Koutroumanis M,Cupples CG

更新日期：1996-07-01 00:00:00

abstract：:Mycobacterium tuberculosis utilizes the methylerythritol phosphate (MEP) pathway for biosynthesis of isopentenyl diphosphate and its isomer, dimethylallyl diphosphate, precursors of all isoprenoid compounds. This pathway is of interest as a source of new drug targets, as it is absent from humans and disruption of the ...

journal_title：Journal of bacteriology

authors： Eoh H,Brown AC,Buetow L,Hunter WN,Parish T,Kaur D,Brennan PJ,Crick DC

更新日期：2007-12-01 00:00:00

abstract：:The addition of 1 mM orthophenanthroline (OP) into a mating mixture drastically reduced the production of recombinants. Examination of the effect of OP on each step of conjugation showed that the effect on the following steps could not account for the up to 500-fold reduction of recombinant formation: (i) preliminary ...

journal_title：Journal of bacteriology

authors： Ou JT,Reim R

更新日期：1976-10-01 00:00:00

abstract：:Transcriptional regulation of the Mg(2+)-citrate transporter, CitM, the main citrate uptake system of Bacillus subtilis, was studied during growth in rich medium. Citrate in the growth medium was required for induction under all growth conditions. In Luria-Bertani medium containing citrate, citM expression was complet...

journal_title：Journal of bacteriology

authors： Warner JB,Magni C,Lolkema JS

更新日期：2003-02-01 00:00:00

abstract：:Seven mutants of Haemophilus influenzae were isolated by the criterion of sensitivity to ultraviolet (UV) inactivation of colony formation. These mutants and the wild type were characterized with regard to X-ray inactivation of colony formation, UV induction of division inhibition, the ability of the eight strains to ...

journal_title：Journal of bacteriology

authors： Setlow JK,Brown DC,Boling ME,Mattingly A,Gordon MP

更新日期：1968-02-01 00:00:00

abstract：:Bacteroides fragilis V479-1 (also designated strain 92) has previously been shown to contain a conjugative plasmid, pBF4, that specifies resistance to clindamycin (Cc). A report of inducible tetracycline (Tc) resistance in this strain suggested that this phenotype was also plasmid associated (G. Privitera et al., Natu...

journal_title：Journal of bacteriology

authors： Smith CJ,Welch RA,Macrina FL

更新日期：1982-07-01 00:00:00