Bordetella pertussis major outer membrane porin protein forms small, anion-selective channels in lipid bilayer membranes.

abstract：:Biogenesis of the outer membrane (OM) is an essential process in gram-negative bacteria. One of the key steps of OM biogenesis is the assembly of integral outer membrane beta-barrel proteins (OMPs) by a protein machine called the Bam complex. In Escherichia coli, the Bam complex is composed of the essential proteins B...

journal_title：Journal of bacteriology

authors： Rigel NW,Schwalm J,Ricci DP,Silhavy TJ

更新日期：2012-03-01 00:00:00

abstract：:Integrons constitute a novel family of DNA elements which evolved by site-specific integration of discrete units between two conserved segments. On the In4 integron of Tn1696, a precisely inserted gene cassette of 1,549 bp conferring nonenzymatic chloramphenicol resistance (cmlA) is present between the streptomycin-sp...

journal_title：Journal of bacteriology

authors： Bissonnette L,Champetier S,Buisson JP,Roy PH

更新日期：1991-07-01 00:00:00

abstract：:Two chemotactic transducers for inorganic phosphate (P(i)), designated CtpH and CtpL, have been identified in Pseudomonas aeruginosa. The corresponding genes (ctpH and ctpL) were inactivated by inserting kanamycin and tetracycline resistance gene cassettes into the wild-type genes in the P. aeruginosa PAO1 genome. Com...

journal_title：Journal of bacteriology

authors： Wu H,Kato J,Kuroda A,Ikeda T,Takiguchi N,Ohtake H

更新日期：2000-06-01 00:00:00

abstract：:Mated cultures of Blakeslea trispora, grown in a potato extract-glucose-thiamine medium, produced 10 to 15 times more beta-carotene than either unmated culture. Mated, but not unmated, cultures produced a family of compounds (beta factor) which stimulated carotenogenesis in unmated cultures. In fact, carotenogenesis w...

journal_title：Journal of bacteriology

authors： Sutter RP,Rafelson ME Jr

更新日期：1968-02-01 00:00:00

abstract：:The antibacterial protein Colicin V (ColV) is secreted from gram-negative bacteria by a signal sequence-independent pathway. The proteins that mediate the export of ColV share sequence similarities with components from other signal sequence-independent export systems such as those for alpha-hemolysin (Hly) and Erwinia...

journal_title：Journal of bacteriology

authors： Fath MJ,Skvirsky RC,Kolter R

更新日期：1991-12-01 00:00:00

abstract：:Alcohol-oxidizing enzymes of the facultative methylotroph PAR were investigated after growth of the bacteria on methanol and ethanol. During methanol growth only a phenazine methosulfate-linked alcohol dehydrogenase was detected. This enzyme had broad specificity for primary alcohols and was also capable of oxidation ...

journal_title：Journal of bacteriology

authors： Bellion E,Wu GT

更新日期：1978-07-01 00:00:00

abstract：:Expression of the Escherichia coli leuV operon, which contains three tRNA(1)(Leu) genes, is regulated by several mechanisms including growth-rate-dependent control (GRDC) and stringent control (SC). Structural variants of the leuV promoter which differentially affect these regulatory responses have been identified, su...

journal_title：Journal of bacteriology

authors： Pokholok DK,Redlak M,Turnbough CL Jr,Dylla S,Holmes WM

更新日期：1999-09-01 00:00:00

abstract：:Burkholderia cenocepacia strain K56-2, a representative of the Burkholderia cepacia complex, is part of the epidemic and clinically problematic ET12 lineage. The strain produced plant tissue watersoaking (ptw) on onion tissue, which is a plant disease-associated trait. Using plasposon mutagenesis, mutants in the ptw p...

journal_title：Journal of bacteriology

authors： Engledow AS,Medrano EG,Mahenthiralingam E,LiPuma JJ,Gonzalez CF

更新日期：2004-09-01 00:00:00

abstract：:One of the most puzzling results from the complete genome sequence of the methanogenic archaeon Methanococcus jannaschii was that the organism may have only one DNA polymerase gene. This is because no other DNA polymerase-like open reading frames (ORFs) were found besides one ORF having the typical alpha-like DNA poly...

journal_title：Journal of bacteriology

authors： Ishino Y,Komori K,Cann IK,Koga Y

更新日期：1998-04-01 00:00:00

abstract：:Chemotactic transducer proteins of Escherichia coli contain four or five methyl-accepting glutamates that are crucial for sensory adaptation and gradient sensing. Two residues arise from posttranslational deamidation of glutamines to yield methyl-accepting glutamates. We addressed the significance of this arrangement ...

journal_title：Journal of bacteriology

authors： Park C,Dutton DP,Hazelbauer GL

更新日期：1990-12-01 00:00:00

abstract：:Cyanothece sp. strain ATCC 51142 is a unicellular, diazotrophic cyanobacterium which demonstrated extensive metabolic periodicities of photosynthesis, respiration, and nitrogen fixation when grown under N2-fixing conditions. N2 fixation and respiration peaked at 24-h intervals early in the dark or subjective-dark peri...

journal_title：Journal of bacteriology

authors： Colón-López MS,Sherman DM,Sherman LA

更新日期：1997-07-01 00:00:00

abstract：:The inducible galactose transport system in bakers' yeast carries out the facilitated diffusion of the nonmetabolized galactose analogues d-fucose and l-arabinose. This capacity depends on the activity of the Ga 2 gene. In some strains, d-fucose and l-arabinose are also gratuitous inducers. Mutants in which the induci...

journal_title：Journal of bacteriology

authors： Cirillo VP

更新日期：1968-05-01 00:00:00

abstract：:The yeast Saccharomyces cerevisiae has two separate genes (APT1 and APT2) that encode two potentially different forms of adenine phosphoribosyltransferase (APRT). However, genetic analysis indicated that only APT1 could code for a complementing activity. Cloning and expression of both the APT1 and APT2 genes in Escher...

journal_title：Journal of bacteriology

authors： Alfonzo JD,Crother TR,Guetsova ML,Daignan-Fornier B,Taylor MW

更新日期：1999-01-01 00:00:00

abstract：:Cultures of the inducible penicillinase-producing strain 749 of Bacillus licheniformis, induced with small amounts of benzylpenicillin, synthesized penicillinase at a high rate for a short period, after which the rate of synthesis slowly declined. During the period of active synthesis, the rate of secretion, as a frac...

journal_title：Journal of bacteriology

authors： Sargent MG,Ghosh BK,Lampen JO

更新日期：1969-02-01 00:00:00

abstract：:MukBEF is a bacterial SMC (structural maintenance of chromosome) complex required for chromosome partitioning in Escherichia coli. We report that overproduction of MukBEF results in marked chromosome condensation. This condensation is rapid and precedes the effects of overproduction on macromolecular synthesis. Conden...

journal_title：Journal of bacteriology

authors： Wang Q,Mordukhova EA,Edwards AL,Rybenkov VV

更新日期：2006-06-01 00:00:00

abstract：:Vibrio cholerae, the causative agent of the human diarrheal disease cholera, is a motile bacterium with a single polar flagellum. Motility has been implicated as a virulence determinant in some animal models of cholera, but the relationship between motility and virulence has not yet been clearly defined. We have begun...

journal_title：Journal of bacteriology

authors： Klose KE,Mekalanos JJ

更新日期：1998-01-01 00:00:00

abstract：:Triggering of germination in Bacillus megaterium QM B1551 spores with D-glucose was studied. First, the interaction of glucose with spores for less than 1 min resulted in triggering almost 90% of the spores after the glucose was removed by dilution. Therefore only a brief time is needed for glucose to trigger germinat...

journal_title：Journal of bacteriology

authors： Racine FM,Dills SS,Vary JC

更新日期：1979-05-01 00:00:00

abstract：:A 12.6-kb DNA fragment from Streptomyces glaucescens GLA.0 containing the 12 genes for tetracenomycin (TCM) C biosynthesis and resistance enabled Streptomyces lividans to produce TCM C. Transcriptional analysis of the tcmPG intergenic region in this cluster established the presence of two divergent promoters. The tcmI...

journal_title：Journal of bacteriology

authors： Decker H,Hutchinson CR

更新日期：1993-06-01 00:00:00

abstract：:A mutational change of the initiation codon to GUA was found to reduce, but not abolish, expression of the recJ gene of Escherichia coli. Specific mutations in translational initiation factor IF3 have been isolated as second-site suppressors of this GUA initiation codon mutation. One of these, infC135, with an arginin...

journal_title：Journal of bacteriology

authors： Haggerty TJ,Lovett ST

更新日期：1997-11-01 00:00:00

abstract：:Utilizing a homologous gene replacement in order to retain the native promoter and 5' and 3' untranslated messenger regions (and thereby ensure physiological validity), we have shown that deletion of the N-terminal 389 amino acids of the transcriptional activator AREA does not result in nitrogen metabolite derepressio...

journal_title：Journal of bacteriology

authors： Caddick MX,Arst HN Jr

更新日期：1998-11-01 00:00:00

abstract：:We screened mini-Mu plasmid libraries from Enterobacter aerogenes IFO 12010 for plasmids that complement Escherichia coli phn mutants that cannot use phosphonates (Pn) as the sole source of phosphorus (P). We isolated two kinds of plasmids that, unexpectedly, encode genes for different metabolic pathways. One kind com...

journal_title：Journal of bacteriology

authors： Lee KS,Metcalf WW,Wanner BL

更新日期：1992-04-01 00:00:00

abstract：:Eight species representative of the serological diversity of the Mycoplasmatales were tested for their ability to incorporate radiolabeled nucleic acid precursors into acid-insoluble material. Cultures in complex growth medium were centrifuged and resuspended in minimal essential medium (Eagle). For Acholeplasma laidl...

journal_title：Journal of bacteriology

authors： McIvor RS,Kenny GE

更新日期：1978-08-01 00:00:00

abstract：:Bacteria in biofilms often undergo active dispersal events and revert to a free-swimming, planktonic state to complete the biofilm life cycle. The signaling molecule nitric oxide (NO) was previously found to trigger biofilm dispersal in the opportunistic pathogen Pseudomonas aeruginosa at low, nontoxic concentrations ...

journal_title：Journal of bacteriology

authors： Barraud N,Schleheck D,Klebensberger J,Webb JS,Hassett DJ,Rice SA,Kjelleberg S

更新日期：2009-12-01 00:00:00

abstract：:Rod-shaped bacteria grow by a repetitive cycle of elongation followed by division, and the mechanisms responsible for these two processes have been studied for decades. However, little is known about what happens during the transition between the two activities. At least one event occurs after elongation ends and befo...

journal_title：Journal of bacteriology

authors： Potluri LP,Kannan S,Young KD

更新日期：2012-10-01 00:00:00

abstract：:In both prokaryotes and eukaryotes, hydroxyurea is suggested to inhibit DNA replication by inactivating ribonucleotide reductase and depleting deoxyribonucleoside triphosphate pools. In this study, we show that the inhibition of replication in Escherichia coli is transient even at concentrations of 0.1 M hydroxyurea a...

journal_title：Journal of bacteriology

authors： Nazaretyan SA,Savic N,Sadek M,Hackert BJ,Courcelle J,Courcelle CT

更新日期：2018-02-23 00:00:00

abstract：:The Czc system of Alcaligenes eutrophus mediates resistance to cobalt, zinc, and cadmium through ion efflux catalyzed by the CzcCB2A cation-proton antiporter. DNA sequencing of the region upstream of the czcNICBADRS determinant located on megaplasmid pMOL30 revealed the 5' end of czcN and a gene for a MgtC-like protei...

journal_title：Journal of bacteriology

authors： Grosse C,Grass G,Anton A,Franke S,Santos AN,Lawley B,Brown NL,Nies DH

更新日期：1999-04-01 00:00:00

abstract：:Genetic transformation of auxotrophs of the extreme thermophile Thermus thermophilus HB27 to prototrophy was obtained at high frequencies of 10(-2) to 10(-1) when proliferating cell populations were exposed to chromosomal DNA from a nutritionally independent wild-type strain. The transformation frequency was proportio...

journal_title：Journal of bacteriology

authors： Koyama Y,Hoshino T,Tomizuka N,Furukawa K

更新日期：1986-04-01 00:00:00

abstract：:A modified gel electrophoresis technique provided a reproducible way of detecting and isolating plasmids with molecular weights ranging from 12 X 10(6) to 370 X 10(6) for Azospirillum species. Analysis with the nifHD region of Rhizobium trifolii showed that the Azospirillum nif genes were chromosomally located in all ...

journal_title：Journal of bacteriology

authors： Plazinski J,Dart PJ,Rolfe BG

更新日期：1983-09-01 00:00:00

abstract：:The Salmonella enterica serovar Typhi ompS2 gene codes for a 362-amino-acid outer membrane protein that contains motifs common to the porin superfamily. It is expressed at very low levels compared to the major OmpC and OmpF porins, as observed for S. enterica serovar Typhi OmpS1, Escherichia coli OmpN, and Klebsiella ...

journal_title：Journal of bacteriology

authors： Fernández-Mora M,Puente JL,Calva E

更新日期：2004-05-01 00:00:00

abstract：:Coat-stripped spores suspended in hypertonic solutions and supplied with two essential cations can be converted into viable protoplasts by lysozyme digestion of both cortex and germ cell wall. Calcium ions are necessary to prevent membrane rupture, and magnesium ions are necessary for changes indicative of hydration o...

journal_title：Journal of bacteriology

authors： Fitz-James PC

更新日期：1971-03-01 00:00:00