Abstract:
:Xylella fastidiosa possesses both type I and type IV pili at the same cell pole. By use of a microfluidic device, the speed of twitching movement by wild-type cells on a glass surface against the flow direction of media was measured as 0.86 (standard error [SE], 0.04) microm min(-1). A type I pilus mutant (fimA) moved six times faster (4.85 [SE, 0.27] microm min(-1)) and a pilY1 mutant moved three times slower (0.28 [SE, 0.03] microm min(-1)) than wild-type cells. Type I pili slow the rate of movement, while the putative type IV pilus protein PilY1 is likely important for attachment to surfaces.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
De La Fuente L,Burr TJ,Hoch HCdoi
10.1128/JB.00934-07subject
Has Abstractpub_date
2007-10-01 00:00:00pages
7507-10issue
20eissn
0021-9193issn
1098-5530pii
JB.00934-07journal_volume
189pub_type
杂志文章abstract::After inoculation of a stationary-phase culture of Nitrosomonas europaea into fresh growth solution, the cell-associated orthophosphate increased rapidly to 800 mumoles/g (wet weight), whereas the acid-insoluble long-chain polyphosphate content decreased rapidly to 22 mumoles/g. As growth proceeded, the orthophosphate...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.103.1.199-206.1970
更新日期:1970-07-01 00:00:00
abstract::The Caulobacter crescentus DNA adenine methyltransferase CcrM and its homologs in the alpha-Proteobacteria are essential for viability. CcrM is 34% identical to the yhdJ gene products of Escherichia coli and Salmonella enterica. This study provides evidence that the E. coli yhdJ gene encodes a DNA adenine methyltransf...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01854-06
更新日期:2007-06-01 00:00:00
abstract::Mutants with reduced lysine decarboxylase activity were isolated from an Escherichia coli polyamine auxotroph. These mutants could not produce induced enzyme, showing only a very low level of an apparently constitutive form. Both enzyme forms could be demonstrated in the parental strain. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.141.3.1428-1431.1980
更新日期:1980-03-01 00:00:00
abstract::The ribG gene at the 5' end of the riboflavin operon of Bacillus subtilis and a reading frame at 442 kb on the Escherichia coli chromosome (subsequently designated ribD) show similarity with deoxycytidylate deaminase and with the RIB7 gene of Saccharomyces cerevisiae. The ribG gene of B. subtilis and the ribD gene of ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.6.2022-2028.1997
更新日期:1997-03-01 00:00:00
abstract::We recently reported a novel genetic locus located in the sbcB-his region of the chromosomal map of Escherichia coli K-12 which directs the expression of group 6-positive phenotype in Shigella flexneri lipopolysaccharide, presumably due to the transfer of O-acetyl groups onto rhamnose residues of the S. flexneri O-spe...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.13.4133-4143.1994
更新日期:1994-07-01 00:00:00
abstract::A novel genetic scheme allowed us to isolate extragenic suppressor mutations that restored mutant OmpF assembly. One group of these mutations, termed asmB for assembly suppressor mutation B, permitted mutant OmpF assembly in a non-allele-specific manner. Genetic mapping analyses placed the asmB mutations at the 2-min ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.17.5138-5143.1996
更新日期:1996-09-01 00:00:00
abstract::Bacillus subtilis mutants deficient in amino acid repression of the histidine utilization (hut) operon were isolated by transposon mutagenesis. Genetic characterization of these mutants indicated that they most likely contained transposon insertions within the codVWXY operon. The codY gene is required for nutritional ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.13.3779-3784.1996
更新日期:1996-07-01 00:00:00
abstract::Melanin production is a major virulence factor for Cryptococcus neoformans, an organism causing life-threatening infections in an estimated 10% of AIDS patients. In order to characterize the events involved in melanin synthesis, an enzyme having diphenol oxidase activity was purified and its gene was cloned. The enzym...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.3.656-664.1994
更新日期:1994-02-01 00:00:00
abstract:UNLABELLED:Rhodopseudomonas palustris is an alphaproteobacterium that has served as a model organism for studies of photophosphorylation, regulation of nitrogen fixation, production of hydrogen as a biofuel, and anaerobic degradation of aromatic compounds. This bacterium is able to transition between anaerobic photoaut...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00771-15
更新日期:2015-12-28 00:00:00
abstract::The Bacillus subtilis anti-TRAP protein regulates the ability of the tryptophan-activated TRAP protein to bind to trp operon leader RNA and promote transcription termination. AT synthesis is regulated both transcriptionally and translationally by uncharged tRNA(Trp). In this study, we examined the roles of AT synthesi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01820-07
更新日期:2008-03-01 00:00:00
abstract::Replication of the broad-host-range, IncPalpha plasmid RK2 requires two plasmid loci: trfA, the replication initiator gene, and oriV, the origin of replication. While these determinants are sufficient for replication in a wide variety of bacteria, they do not confer the stable maintenance of parental RK2 observed in i...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.182.21.6014-6026.2000
更新日期:2000-11-01 00:00:00
abstract::The importance of the physiological state of a culture of Saccharomyces cerevisiae for tolerance to sudden osmotic dehydration was studied, and it was investigated whether specific osmotolerance factors were demonstrable. The microcalorimeter was used to monitor growth, and different physiological states of the cultur...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.10.4562-4568.1988
更新日期:1988-10-01 00:00:00
abstract:UNLABELLED:Deacetylation of 7-aminocephalosporanic acid (7-ACA) at position C-3 provides valuable starting material for producing semisynthetic β-lactam antibiotics. However, few enzymes have been characterized in this process before now. Comparative analysis of the genome of the thermophilic bacterium Alicyclobacillus...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00471-15
更新日期:2015-11-02 00:00:00
abstract::After UV irradiation, Escherichia coli uvrA mutant cells show higher survival on minimal than on rich growth medium, i.e., they show minimal-medium recovery. This effect of rich growth medium on survival is not observed in a uvrA mutant carrying an mmrA1 mutation, and the uvrA mmrA strain showed the same survival rate...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.154.2.743-747.1983
更新日期:1983-05-01 00:00:00
abstract::The Escherichia coli gene cluster encoding enzymatic activities responsible for the synthesis and activation of 2,3-dihydroxybenzoic acid in the formation of the catechol siderophore enterobactin was localized to a 4.2-kilobase chromosomal DNA fragment. Analysis of various subclones and transposon insertion mutations ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.9.4163-4170.1987
更新日期:1987-09-01 00:00:00
abstract::plsB mutants of Escherichia coli are sn-glycerol 3-phosphate auxotrophs which owe their requirement to a K(m) defect in sn-glycerol 3-phosphate acyltransferase, the first enzyme in the phospholipid biosynthetic pathway. We have located the plsB gene at minute 69 of the E. coli genetic map, far removed from the gene de...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.120.1.227-233.1974
更新日期:1974-10-01 00:00:00
abstract::CatR, a LysR family protein, positively regulates the Pseudomonas putida catBC operon, which is required for growth on benzoate as a sole carbon source. Transcriptional studies show that the catR and catBC promoters are divergent and overlapping by 2 bp. A beta-galactosidase promoter probe vector was constructed to an...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.15.4717-4724.1991
更新日期:1991-08-01 00:00:00
abstract::FtsK is essential for Escherichia coli cell division. We report that cells lacking the C terminus of FtsK are defective in chromosome segregation as well as septation, often exhibiting asymmetrically positioned nucleoids and large anucleate regions. Combining the corresponding truncated ftsK gene with a mukB null muta...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::Escherichia coli AT2046 has been shown previously to lack the enzyme serine transhydroxymethylase and to require exogenous glycine for growth as a consequence. Strains JEV73 and JEV73R, mutants derived from strain AT2046, are shown here to be serine transhydroxymethylase deficient, but able to derive their glycine fro...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.122.3.810-817.1975
更新日期:1975-06-01 00:00:00
abstract::Lazaroff, Norman (British Columbia Research Council, Vancouver, B.C., Canada). Sulfate requirement for iron oxidation by Thiobacillus ferrooxidans. J. Bacteriol. 85:78-83. 1963.-The growth of Thiobacillus ferrooxidans is initially inhibited in media containing ferrous chloride in place of ferrous sulfate. This inhibit...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.85.1.78-83.1963
更新日期:1963-01-01 00:00:00
abstract::From the marine sponge Halichondria panicea a lectin was isolated and characterized. The homogeneous lectin (composed of protein to 80.7% and of neutral carbohydrates to 14.1%) had a molecular weight of 78,000 (determined by gel filtration) and consisted of four subunits with a molecular weight of 21,000 each (determi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.145.1.548-558.1981
更新日期:1981-01-01 00:00:00
abstract::Anaerobic microbial toluene catabolism is initiated by addition of fumarate to the methyl group of toluene, yielding (R)-benzylsuccinate as first intermediate, which is further metabolized via beta-oxidation to benzoyl-coenzyme A (CoA) and succinyl-CoA. A specific succinyl-CoA:(R)-benzylsuccinate CoA-transferase activ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.183.14.4288-4295.2001
更新日期:2001-07-01 00:00:00
abstract::The crystal structure of the Na(+)-coupled melibiose permease of Salmonella enterica serovar Typhimurium (MelBSt) demonstrates that MelB is a member of the major facilitator superfamily of transporters. Arg residues at positions 295, 141, and 363 are involved in interdomain interactions at the cytoplasmic side by gove...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01868-14
更新日期:2014-09-01 00:00:00
abstract::Previous studies have indicated that a single enzyme, "kynureninase," catalyzes the reactions of l-kynurenine to anthranilate and l-3-hydroxykynurenine to 3-hydroxyanthranilate in Neurospora crassa and in other organisms. The present report describes separate enzymes which catalyze these reactions in N. crassa. The fi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.108.2.902-909.1971
更新日期:1971-11-01 00:00:00
abstract::Streptococcus faecalis transposon Tn917 was cloned in Escherichia coli on plasmid vector pBR325. The erythromycin resistance determinant of Tn917 was not expressed in the E. coli background. The nucleotide sequence of Tn917 was determined and found to be 5,257 base pairs in length. Six open reading frames (ORFs) were ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.164.2.782-796.1985
更新日期:1985-11-01 00:00:00
abstract::A novel of Escherichia coli endopeptidase was used for a selective partial hydrolysis of the peptide bridges which interlink the glycan chains in E. coli sacculi. The loosening of the murein network revealed, in the electron microscope, a preferential orientation of the glycan chains, more or less perpendicular to the...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.136.2.723-729.1978
更新日期:1978-11-01 00:00:00
abstract::Weaver, Judith R. (Iowa State University, Ames), and P. A. Pattee. Inducible resistance to erythromycin in Staphylococcus aureus. J. Bacteriol. 88:574-580. 1964.-The dissociated resistance of Staphylococcus aureus to erythromycin was examined and was found to possess the characteristics of an inducible enzyme. The ind...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.88.3.574-580.1964
更新日期:1964-09-01 00:00:00
abstract::Acid-soluble spore proteins (ASSPs) comprise about 5% of the total protein of mature spores of different Bacillus subtilis strains. They consist of three abundant species, alpha, beta, and gamma, four less abundant species, and several minor species, alpha, beta, and gamma make up about 18, 18 and 36%, respectively, o...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.146.3.972-982.1981
更新日期:1981-06-01 00:00:00
abstract::In Escherichia coli, the three branched-chain amino acid activating enzymes appear to be essential for multivalent repression of the isoleucine- and valine-forming enzymes. The results of experiments with a mutant, strain CU18, having an altered threonine deaminase, indicate that free isoleucine and some form of threo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.117.1.29-39.1974
更新日期:1974-01-01 00:00:00
abstract::Temperate bacteriophages effect chromosomal evolution of their bacterial hosts, mediating rearrangements and the acquisition of novel genes from other taxa. Although the Haemophilus influenzae genome shows evidence of past phage-mediated lateral transfer, the phages presumed responsible have not been identified. To da...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.24.6893-6905.2002
更新日期:2002-12-01 00:00:00