Regulation of the Locus of Enterocyte Effacement in Attaching and Effacing Pathogens.

abstract：:NifA is the general transcriptional activator of nitrogen fixation genes in diazotrophic bacteria. In Rhizobium leguminosarum bv. viciae UPM791, the nifA gene is part of a gene cluster (orf71 orf79 fixW orf5 fixABCX nifAB) separated by 896 bp from an upstream and divergent truncated duplication of nifH (DeltanifH). Sy...

journal_title：Journal of bacteriology

authors： Martínez M,Palacios JM,Imperial J,Ruiz-Argüeso T

更新日期：2004-10-01 00:00:00

abstract：:ibeA is a virulence factor found in some extraintestinal pathogenic Escherichia coli (ExPEC) strains from the B2 phylogenetic group and particularly in newborn meningitic and avian pathogenic strains. It was shown to be involved in the invasion process of the newborn meningitic strain RS218. In a previous work, we sho...

journal_title：Journal of bacteriology

authors： Fléchard M,Cortes MA,Répérant M,Germon P

更新日期：2012-09-01 00:00:00

abstract：:Salmonella typhimurium prototrophs carrying a trpR mutation synthesize tryptophan biosynthetic enzymes constitutively. When feedback inhibition of anthranilate synthetase but not 5'-phosphoribosylpyrophosphate phosphoribosyltransferase activity was by-passed by growing cells on media supplemented with anthranilic acid...

journal_title：Journal of bacteriology

authors： Stuttard C

更新日期：1975-09-01 00:00:00

abstract：UNLABELLED:The latent period of phage T4, normally ∼25 min, can be extended indefinitely if the infected cell is superinfected after 5 min. This phenomenon, designated lysis inhibition (LIN), was first described in the 1940s and is genetically defined by mutations in diverse T4 r genes. RI, the main effector of LIN, ha...

journal_title：Journal of bacteriology

authors： Chen Y,Young R

更新日期：2016-08-25 00:00:00

abstract：:Expression of the 146-kilodalton (kDa) extracellular glucoamylase by the budding yeast Schwanniomyces castellii is induced by maltose and starch. By use of antiglucoamylase antisera, we found that this expression was regulated at the level of the mRNA, taking place within 30 min after exposure of yeast cells to the re...

journal_title：Journal of bacteriology

authors： Dowhanick TM,Russell I,Scherer SW,Stewart GG,Seligy VL

更新日期：1990-05-01 00:00:00

abstract：:A gene (aad) coding for an aldehyde/alcohol dehydrogenase (AAD) was identified immediately upstream of the previously cloned ctfA (J. W. Cary, D. J. Petersen, E. T. Papoutsakis, and G. N. Bennett, Appl. Environ. Microbiol. 56:1576-1583, 1990) of Clostridium acetobutylicum ATCC 824 and sequenced. The 2,619-bp aad codes...

journal_title：Journal of bacteriology

authors： Nair RV,Bennett GN,Papoutsakis ET

更新日期：1994-02-01 00:00:00

abstract：:Hydrolytic deamination of cytosine to uracil in DNA is increased in organisms adapted to high temperatures. Hitherto, the uracil base excision repair (BER) pathway has only been described in two archaeons, the crenarchaeon Pyrobaculum aerophilum and the euryarchaeon Archaeoglobus fulgidus, which are hyperthermophiles ...

journal_title：Journal of bacteriology

authors： Moen MN,Knævelsrud I,Haugland GT,Grøsvik K,Birkeland NK,Klungland A,Bjelland S

更新日期：2011-09-01 00:00:00

abstract：:A 10-kb region of the Bacillus subtilis genome that contains genes involved in biotin-biosynthesis was cloned and sequenced. DNA sequence analysis indicated that B. subtilis contains homologs of the Escherichia coli and Bacillus sphaericus bioA, bioB, bioD, and bioF genes. These four genes and a homolog of the B. spha...

journal_title：Journal of bacteriology

authors： Bower S,Perkins JB,Yocum RR,Howitt CL,Rahaim P,Pero J

更新日期：1996-07-01 00:00:00

abstract：:Rhizobia form a symbiotic relationship with plants of the legume family to produce nitrogen-fixing root nodules under nitrogen-limiting conditions. We have examined the importance of glutathione (GSH) during free-living growth and symbiosis of Sinorhizobium meliloti. An S. meliloti mutant strain (SmgshA) which is unab...

journal_title：Journal of bacteriology

authors： Harrison J,Jamet A,Muglia CI,Van de Sype G,Aguilar OM,Puppo A,Frendo P

更新日期：2005-01-01 00:00:00

abstract：:Cell-free extract (crude extract) of Agrobacterium tumefaciens grown on d-glucuronate or d-glucarate converts d-glucarate and galactarate to a mixture of 2-keto-3-deoxy- and 4-deoxy-5-keto-d-glucarate. These compounds are then converted by partially purified crude extract to an intermediate tentatively identified as 2...

journal_title：Journal of bacteriology

authors： Chang YF,Feingold DS

更新日期：1970-04-01 00:00:00

abstract：:The transposable drug resistance element Tn10 was employed as a region of homology to direct the insertion of Tn10-containing derivatives of F'ts114 lac into the chromosome of a Salmonella typhimurium strain that carries a Tn10 insertion in the histidine transport operon. Based on the direction of transfer of the resu...

journal_title：Journal of bacteriology

authors： Lawton KG,Taber HW

更新日期：1984-03-01 00:00:00

abstract：:Genome duplication and segregation normally are completed before cell division in all organisms. The temporal relation of duplication and segregation, however, can vary in bacteria. Chromosomal regions can segregate towards opposite poles as they are replicated or can stay cohered for a considerable period before segr...

journal_title：Journal of bacteriology

authors： Srivastava P,Fekete RA,Chattoraj DK

更新日期：2006-02-01 00:00:00

abstract：:Acyl carrier protein (ACP coli) was isolated from commercially grown Escherichia coli B and was acetylated by chemical methods. Biological activity of the synthesized acetyl-ACP coli was checked in an in vitro fatty acid-synthesizing system isolated from E. coli B. Since acetyl-ACP is preferred over acetyl-coenzyme A ...

journal_title：Journal of bacteriology

authors： Marcus SL,Reeves HC,Ajl SJ

更新日期：1968-10-01 00:00:00

abstract：:Hook-associated proteins (HAPs) were excreted into the culture medium of the Fla+ strain as well as into the growth medium of the filamentless mutants of Salmonella typhimurium. This indicates that the bacteria synthesize HAPs excessively, beyond the amount required for construction of flagella. The extra HAPs are she...

journal_title：Journal of bacteriology

authors： Homma M,Iino T

更新日期：1985-12-01 00:00:00

abstract：:When Azotobacter vinelandii was derepressed for nitrogenase synthesis in a N-free medium containing tungstate instead of molybdate, an inactive component I was synthesized. Although this inactive component I could be activated in vivo upon addition of molybdate to the medium, it could not be activated in vitro when mo...

journal_title：Journal of bacteriology

authors： Nagatani HH,Shah VK,Brill WJ

更新日期：1974-11-01 00:00:00

abstract：:A study was made to determine whether factors other than the availability of phosphorus were involved in the regulation of synthesis of teichoic and teichuronic acids in Bacillus subtilis subsp. niger WM. First, the nature of the carbon source was varied while the dilution rate was maintained at about 0.3 h-1. Irrespe...

journal_title：Journal of bacteriology

authors： Kruyssen FJ,de Boer WR,Wouters JT

更新日期：1980-10-01 00:00:00

abstract：:Silicibacter sp. strain TM1040, a member of the Roseobacter clade, forms a symbiosis with unicellular phytoplankton, which is inextricably linked to the biphasic "swim or stick" lifestyle of the bacteria. Mutations in flaC bias the population toward the motile phase. Renewed examination of the FlaC(-) strain (HG1016) ...

journal_title：Journal of bacteriology

authors： Sule P,Belas R

更新日期：2013-02-01 00:00:00

abstract：:Oxalate catabolism is conducted by phylogenetically diverse organisms, including Methylobacterium extorquens AM1. Here, we investigate the central metabolism of this alphaproteobacterium during growth on oxalate by using proteomics, mutant characterization, and (13)C-labeling experiments. Our results confirm that ener...

journal_title：Journal of bacteriology

authors： Schneider K,Skovran E,Vorholt JA

更新日期：2012-06-01 00:00:00

abstract：:The expression of the pur operon, which encodes enzymes of the purine biosynthetic pathway in Bacillus subtilis, is subject to control by the purR gene product (PurR) and phosphoribosylpyrophosphate. This control is also exerted on the purA and purR genes. A consensus sequence for the binding of PurR, named the PurBox...

journal_title：Journal of bacteriology

authors： Saxild HH,Brunstedt K,Nielsen KI,Jarmer H,Nygaard P

更新日期：2001-11-01 00:00:00

abstract：:In this report we describe the cloning, organization, and promoter analysis of the Staphylococcus aureus thioredoxin (trxA) and thioredoxin reductase (trxB) genes and their transcription in response to changes in oxygen concentration and to oxidative stress compounds. Northern analysis showed that the S. aureus trxA a...

journal_title：Journal of bacteriology

authors： Uziel O,Borovok I,Schreiber R,Cohen G,Aharonowitz Y

更新日期：2004-01-01 00:00:00

abstract：:Girard, Kenneth F. (St. Margaret's Hospital, Boston, Mass.), Anthony J. Sbarra, and Wadi A. Bardawil. Serology of Listeria monocytogenes. I. Characteristics of the soluble hemolysin. J. Bacteriol. 85:349-355. 1963.-Our results clearly demonstrate that Listeria monocytogenes (strain 9-125) produces a soluble hemolysin....

journal_title：Journal of bacteriology

authors： GIRARD KF,SBARRA AJ,BARDAWIL WA

更新日期：1963-02-01 00:00:00

abstract：:A 6.2-kb region of DNA corresponding to complementation groups II and III of the Erwinia amylovora hrp gene cluster was analyzed. Transposon mutagenesis indicated that the two complementation groups are required for secretion of harpin, an elicitor of the hypersensitive reaction. The sequence of the region revealed 10...

journal_title：Journal of bacteriology

authors： Kim JF,Wei ZM,Beer SV

更新日期：1997-03-01 00:00:00

abstract：:We determined the nucleotide sequence of a 1.9-kilobase fragment of Pseudomonas paucimobilis SYK6 chromosomal DNA that included genes encoding protocatechuate 4,5-dioxygenase, the enzyme responsible for the aromatic ring fission of protocatechuate. Two open reading frames of 417 and 906 base pairs were found that had ...

journal_title：Journal of bacteriology

authors： Noda Y,Nishikawa S,Shiozuka K,Kadokura H,Nakajima H,Yoda K,Katayama Y,Morohoshi N,Haraguchi T,Yamasaki M

更新日期：1990-05-01 00:00:00

abstract：:A pentachlorophenol (PCP) hydroxylase which catalyzed the conversion of PCP to 2,3,5,6-tetrachlorohydroquinone and released iodide from triiodophenol in the presence of NADPH and oxygen was identified. The enzyme was purified by protamine sulfate precipitation, ammonium sulfate precipitation, hydrophobic chromatograph...

journal_title：Journal of bacteriology

authors： Xun L,Orser CS

更新日期：1991-07-01 00:00:00

abstract：:The deduced amino acid sequences of the flagellins of Pseudomonas syringae pv. tabaci and P. syringae pv. glycinea are identical; however, their abilities to induce a hypersensitive reaction are clearly different. The reason for the difference seems to depend on the posttranslational modification of the flagellins. To...

journal_title：Journal of bacteriology

authors： Takeuchi K,Taguchi F,Inagaki Y,Toyoda K,Shiraishi T,Ichinose Y

更新日期：2003-11-01 00:00:00

abstract：:Two different mutations (pabA and pabB) affecting 4-aminobenzoate biosynthesis were obtained in strains of Escherichia coli lacking chorismate mutase and anthranilate synthetase activity, thus allowing study of the pathway of biosynthesis of 4-aminobenzoate by use of cell extracts of strains carrying the pab mutations...

journal_title：Journal of bacteriology

authors： Huang M,Gibson F

更新日期：1970-06-01 00:00:00

abstract：:The effect of CheY and fumarate on switching frequency and rotational bias of the bacterial flagellar motor was analyzed by computer-aided tracking of tethered Escherichia coli. Plots of cells overexpressing CheY in a gutted background showed a bell-shaped correlation curve of Switching frequency and bias centering at...

journal_title：Journal of bacteriology

authors： Montrone M,Eisenbach M,Oesterhelt D,Marwan W

更新日期：1998-07-01 00:00:00

abstract：:The anaerobic pathogen Clostridium perfringens encodes either toxin genes or antibiotic resistance determinants on a unique family of conjugative plasmids that have a novel conjugation region, the tcp locus. Studies of the paradigm conjugative plasmid from C. perfringens, the 47-kb tetracycline resistance plasmid pCW3...

journal_title：Journal of bacteriology

authors： Wisniewski JA,Teng WL,Bannam TL,Rood JI

更新日期：2015-02-15 00:00:00

abstract：:We designed a selection strategy for the isolation of Escherichia coli mutants exhibiting enhanced protein disulfide isomerase activity. The folding of a variant of tissue plasminogen activator (v-tPA), a protein containing nine disulfide bonds, in the bacterial periplasm is completely dependent on the level of disulf...

journal_title：Journal of bacteriology

authors： Zhan X,Gao J,Jain C,Cieslewicz MJ,Swartz JR,Georgiou G

更新日期：2004-02-01 00:00:00

abstract：:The fis operon from Salmonella typhimurium has been cloned and sequenced, and the properties of Fis-deficient and Fis-constitutive strains were examined. The overall fis operon organization in S. typhimurium is the same as that in Escherichia coli, with the deduced Fis amino acid sequences being identical between both...

journal_title：Journal of bacteriology

authors： Osuna R,Lienau D,Hughes KT,Johnson RC

更新日期：1995-04-01 00:00:00