ENZYME ASSOCIATED WITH BACTERIOPHAGE INFECTION.

abstract：:Transcription of the gyrA and gyrB genes, which encode the subunits of DNA gyrase, increases in response to DNA relaxation. Previous studies have shown that a small segment of DNA extending from the -10 consensus hexamer to the start of transcription encodes the sequence determinants for this response. In this study, ...

journal_title：Journal of bacteriology

authors： Straney R,Krah R,Menzel R

更新日期：1994-10-01 00:00:00

abstract：:The metabolism of mRNA from the lactose (lac) operon of Escherichia coli has been studied in ribonuclease (RNase) III-deficient strains (rnc-105). The induction lag for beta-galactosidase from the first gene was twice as long, and enzyme synthesis was reduced 10-fold in one such mutant compared with its isogenic rnc+ ...

journal_title：Journal of bacteriology

authors： Talkad V,Achord D,Kennell D

更新日期：1978-08-01 00:00:00

abstract：:tolC mutants, which are resistant to colicin E1 and also highly sensitive to detergents and dyes, were shown to lack the OmpF outer membrane protein. There was little effect on transcription as judged by the use of an ompF-lac operon fusion strain, and the tolC effect was probably due to a post-transcriptional effect....

journal_title：Journal of bacteriology

authors： Morona R,Reeves P

更新日期：1982-06-01 00:00:00

abstract：:sigma E is a sporulation-specific sigma factor of Bacillus subtilis that is formed from an inactive precursor protein (pro-sigma E) by the removal of 27 to 29 amino acids from the pro-sigma E amino terminus. By using oligonucleotide-directed mutagenesis, sequential deletions were constructed in the precursor-specific ...

journal_title：Journal of bacteriology

authors： Peters HK 3rd,Carlson HC,Haldenwang WG

更新日期：1992-07-01 00:00:00

abstract：:Cosmid B577, a member of the collection of ordered clones corresponding to the genome of Mycobacterium leprae, contains a gene, provisionally called pon1, that encodes an 821-amino-acid-residue high-molecular-mass class A penicillin-binding protein, provisionally called PBP1. With similar amino acid sequences and modu...

journal_title：Journal of bacteriology

authors： Basu J,Mahapatra S,Kundu M,Mukhopadhyay S,Nguyen-Distèche M,Dubois P,Joris B,Van Beeumen J,Cole ST,Chakrabarti P,Ghuysen JM

更新日期：1996-03-01 00:00:00

abstract：:Shiga toxin (STX), a bacterial toxin produced by Shigella dysenteriae type 1, is a hexamer composed of five receptor-binding B subunits which encircle an alpha-helix at the carboxyl terminus of the enzymatic A polypeptide. Hybrid toxins constructed by fusing the A polypeptide sequences of STX and Shiga-like toxin type...

journal_title：Journal of bacteriology

authors： Jemal C,Haddad JE,Begum D,Jackson MP

更新日期：1995-06-01 00:00:00

abstract：:Altering membrane protein and lipid composition is an important strategy for maintaining membrane integrity during environmental stress. Many bacterial small RNAs (sRNAs) control membrane protein production, but sRNA-mediated regulation of membrane fatty acid composition is less well understood. The sRNA RydC was prev...

journal_title：Journal of bacteriology

authors： Bianco CM,Fröhlich KS,Vanderpool CK

更新日期：2019-09-06 00:00:00

abstract：:We have identified IS100 sequences in a specific subset of Yersinia pseudotuberculosis isolates that were also sensitive to the Y. pestis-produced bacteriocin, pesticin. In contrast, Y. pseudotuberculosis strains which did not contain IS100 sequences were not sensitive to pesticin. We propose that IS100 serves as a mo...

journal_title：Journal of bacteriology

authors： McDonough KA,Hare JM

更新日期：1997-03-01 00:00:00

abstract：:Respiratory nitrate reductase purified from the cell membrane of Escherichia coli is composed of three subunits, alpha, beta, and gamma, which are encoded, respectively, by the narG, narH, and narI genes of the narGHJI operon. The product of the narJ gene was deduced previously to be a highly charged, acidic protein w...

journal_title：Journal of bacteriology

authors： Dubourdieu M,DeMoss JA

更新日期：1992-02-01 00:00:00

abstract：:Periplasmic nitrate reductase (NapABC enzyme) has been characterized from a variety of proteobacteria, especially Paracoccus pantotrophus. Whole-genome sequencing of Escherichia coli revealed the structural genes napFDAGHBC, which encode NapABC enzyme and associated electron transfer components. E. coli also expresses...

journal_title：Journal of bacteriology

authors： Stewart V,Lu Y,Darwin AJ

更新日期：2002-03-01 00:00:00

abstract：:A combined physical and genetic map of the genome of strain SG24 of Vibrio cholerae O139 Bengal, a novel non-O1 strain having epidemic potential, has been constructed by using the enzymes NotI, SfiI, and CeuI. The genome of SG24 is circular, and the genome size is about 3. 57 Mb. The linkages between 47 NotI and 32 Sf...

journal_title：Journal of bacteriology

authors： Khetawat G,Bhadra RK,Kar S,Das J

更新日期：1998-09-01 00:00:00

abstract：:In vitro, archaeal SRP54 binds SRP RNA in the absence of SRP19, suggesting the latter to be expendable in Archaea. Accordingly, the Haloferax volcanii SRP19 gene was deleted. Although normally transcribed at a level comparable to that of the essential SRP54 gene, SRP19 deletion had no effect on cell growth, membrane p...

journal_title：Journal of bacteriology

authors： Yurist S,Dahan I,Eichler J

更新日期：2007-01-01 00:00:00

abstract：:Burkholderia thailandensis is a soil saprophyte that is closely related to the pathogen Burkholderia pseudomallei, the etiological agent of melioidosis in humans. The environmental niches and infection sites occupied by these bacteria are thought to contain only limited concentrations of oxygen, where they can generat...

journal_title：Journal of bacteriology

authors： Vitale A,Paszti S,Takahashi K,Toyofuku M,Pessi G,Eberl L

更新日期：2020-11-04 00:00:00

abstract：:The anti-inflammatory drug phenylbutazone has been found to inhibit both engulfment and intracellular killing of E. coli by guinea pig peritoneal polymorphonuclear (PMN) leukocytes. The bactericidal activity of leukocytic homogenates was also inhibited by the drug. Addition of the drug at various time intervals to a p...

journal_title：Journal of bacteriology

authors： Strauss RR,Paul BB,Sbarra AJ

更新日期：1968-12-01 00:00:00

abstract：:Nitroakridin 3582 (NA) formed complexes with native deoxyribonucleic acid (DNA) and with transfer ribonucleic acid (tRNA) species from Escherichia coli. Spectrophotometric titrations of NA with these nucleic acids produced numerical results from which nonlinear adsorption isotherms were derived. These curves indicated...

journal_title：Journal of bacteriology

authors： Wolfe AD,Cook TM,Hahn FE

更新日期：1971-12-01 00:00:00

abstract：:Outer membranes, free of cytoplasmic or thylakoid membranes and peptidoglycan components, were obtained from Synechocystis sp. strain PCC6714. Electron microscope studies revealed double-track outer membrane vesicles with a smooth-appearing exoplasmic surface, an exoplasmic fracture face covered by closely packed part...

journal_title：Journal of bacteriology

authors： Jürgens UJ,Weckesser J

更新日期：1985-10-01 00:00:00

abstract：:Sinorhizobium meliloti strains lacking BacA function are impaired in symbiosis with alfalfa host plants and display altered sensitivities to a number of compounds relative to wild-type strains. With the goal of finding clues to the currently unknown biological function(s) of BacA, we carried out a genetic analysis to ...

journal_title：Journal of bacteriology

authors： LeVier K,Walker GC

更新日期：2001-11-01 00:00:00

abstract：:Polyribosomes detected in extracts of spores harvested with water also were found in extracts prepared from spores harvested with nonaqueous fluids. ...

journal_title：Journal of bacteriology

authors： Brambl R

更新日期：1975-06-01 00:00:00

abstract：:Host range mutants of phage T1 (T1h), which productively infected tonB mutants of Escherichia coli, were isolated. The phage mutants were inactivated by isolated outer membranes of E. coli in contrast to the wild-type phage, which only adsorbed reversibly. For the infection process, the tonB function is apparently onl...

journal_title：Journal of bacteriology

authors： Hantke K,Braun V

更新日期：1978-07-01 00:00:00

abstract：:The genome of the facultative ribulose monophosphate (RuMP) cycle methylotroph Bacillus methanolicus encodes two bisphosphatases (GlpX), one on the chromosome (GlpX(C)) and one on plasmid pBM19 (GlpX(P)), which is required for methylotrophy. Both enzymes were purified from recombinant Escherichia coli and were shown t...

journal_title：Journal of bacteriology

authors： Stolzenberger J,Lindner SN,Persicke M,Brautaset T,Wendisch VF

更新日期：2013-11-01 00:00:00

abstract：:An assay modeled on a known polymorphism in the PE_PGRS9 gene of Mycobacterium tuberculosis was designed to assess the mutability of a sequence containing interspersed PGRS repeats. Application of the assay in Mycobacterium smegmatis revealed sequence plasticity: in addition to recapitulating the mutation on which it ...

journal_title：Journal of bacteriology

authors： Machowski EE,Barichievy S,Springer B,Durbach SI,Mizrahi V

更新日期：2007-03-01 00:00:00

abstract：:Cellular pigmentation is an important virulence factor of the oral pathogen Porphyromonas gingivalis Pigmentation has been associated with many bacterial functions, including but not limited to colonization, maintaining a local anaerobic environment by binding oxygen molecules, and defense against reactive oxygen spec...

journal_title：Journal of bacteriology

authors： Klein BA,Cornacchione LP,Collins M,Malamy MH,Duncan MJ,Hu LT

更新日期：2017-06-27 00:00:00

abstract：:The deoxyribonucleic acid (DNA) polymerase activities in Bacillus subtilis strains Marburg 168 (thy-trp2) and D22, a DNA polymerase I-deficient mutant, were measured at various stages of sporulation. The DNA polymerase I activity, which had decreased after the exponential growth, began to increase at the early stage o...

journal_title：Journal of bacteriology

authors： Honjo M,Shibano Y,Komano T

更新日期：1976-10-01 00:00:00

abstract：:Cleared lysates of 13 species of filamentous cyanobacteria were examined for the presence of extrachromosomal DNA by using agarose gel electrophoresis and ethidium bromide staining. Seven of the 13 species contained extrachromosomal covalently closed circular DNA, and all but 1 species contained multiple elements. The...

journal_title：Journal of bacteriology

authors： Simon RD

更新日期：1978-10-01 00:00:00

abstract：:The overlapping fdhA and fdhB genes of Methanobacterium formicicum, which encode the alpha and beta subunits, respectively, of formate dehydrogenase, were cotranscribed as part of an approximately 4.5-kb transcript. An additional gene (fdhC) upstream of fdhA was cotranscribed with fdhA and fdhB. The deduced amino acid...

journal_title：Journal of bacteriology

authors： White WB,Ferry JG

更新日期：1992-08-01 00:00:00

abstract：:The alkaline phosphatase (orthophosphoric monoester phosphydrolase, EC 3.1.3.1) of Bacillus licheniformis MC14 was studied in an attempt to determine the number of subunits contained in the 120,000-molecular-weight native enzyme. Two moles of arginine was liberated per mole of native enzyme by carboxypeptidases A and ...

journal_title：Journal of bacteriology

authors： Hulett FM,Schaffel SD,Campbell LL

更新日期：1976-11-01 00:00:00

abstract：:The isopropylmalate isomerase in Salmonella typhimurium is the second enzyme specific for leucine biosynthesis. It is a complex enzyme composed of two subunits which are coded for by two genes of the leucine operon, leuC and leuD. The two polypeptides have been shown to copurify through successive ammonium sulfate fra...

journal_title：Journal of bacteriology

authors： Fultz PN,Kemper J

更新日期：1981-10-01 00:00:00

abstract：:For maximal turbidity and dissimilatory activity, three strains of pediococci required the addition of Mn(2+) to Rogosa basal medium. Twenty-two strains of enterococci proved indifferent to this supplement. ...

journal_title：Journal of bacteriology

authors： Efthymiou CJ,Joseph SW

更新日期：1972-10-01 00:00:00

abstract：:Resistance of Staphylococcus aureus mediated by the penicillinase (Pc-ase) plasmid to divalent metal ions of Hg and Cd was found to be controlled by different mechanisms. The Hg resistance of the Pc-ase plasmid-carrying organisms is based upon a process of changing the ion incorporated in the cell into a somewhat inno...

journal_title：Journal of bacteriology

authors： Kondo I,Ishikawa T,Nakahara H

更新日期：1974-01-01 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

authors： Müller WE,Zahn RK,Kurelec B,Lucu C,Müller I,Uhlenbruck G

更新日期：1981-01-01 00:00:00