A small (2.4 Mb) Bacillus cereus chromosome corresponds to a conserved region of a larger (5.3 Mb) Bacillus cereus chromosome.

abstract：:A new class of Bacillus thuringiensis delta-endotoxins, or insecticidal control proteins (ICPs), is defined by an apparently cryptic protein with a unique primary structure and novel entomocidal specificity for certain coleopteran and lepidopteran species. The discovery of a new group of ICPs will extend the use of th...

journal_title：Molecular microbiology

authors： Tailor R,Tippett J,Gibb G,Pells S,Pike D,Jordan L,Ely S

更新日期：1992-05-01 00:00:00

abstract：:Quinone-based compounds have been exploited to treat infectious diseases and cancer, with such chemicals often functioning as inhibitors of key metabolic pathways or as prodrugs. Here, we screened an aziridinyl 1,4-benzoquinone (ABQ) library against the causative agents of trypanosomiasis, and cutaneous leishmaniasis,...

journal_title：Molecular microbiology

authors： Meredith EL,Kumar A,Konno A,Szular J,Alsford S,Seifert K,Horn D,Wilkinson SR

更新日期：2017-10-01 00:00:00

abstract：:Certain strains of Pichia acaciae and Wingea robertsiae (synonym Debaryomyces robertsiae) harbour extranuclear genetic elements that confer a killer phenotype to their host. Such killer plasmids (pPac1-2 of P. acaciae and pWR1A of W. robertsiae) were sequenced and compared with the zymocin encoding pGKL1 of Kluyveromy...

journal_title：Molecular microbiology

authors： Klassen R,Teichert S,Meinhardt F

更新日期：2004-07-01 00:00:00

abstract：:Many physiological adjustments to nutrient changes involve ppGpp. Recent attempts to deduce ppGpp regulatory effects using proteomics or gene profiling can rigorously identify proteins or transcripts, but the functional significance is often unclear. Using a random screen for synthetic lethals we found a ppGpp-depende...

journal_title：Molecular microbiology

authors： Harinarayanan R,Murphy H,Cashel M

更新日期：2008-08-01 00:00:00

abstract：:Salmonella Typhimurium causes bacterial enterocolitis. The type III secretion system (TTSS)-1 is a key virulence determinant of S. Typhimurium mediating host cell invasion and acute enterocolitis. The TTSS-1 effector protein SipA is transported into host cells, accumulates in characteristic foci at the bacteria-host c...

journal_title：Molecular microbiology

authors： Schlumberger MC,Käppeli R,Wetter M,Müller AJ,Misselwitz B,Dilling S,Kremer M,Hardt WD

更新日期：2007-08-01 00:00:00

abstract：:The utilization of several sugars in Escherichia coli is regulated by the Phosphotransferase System (PTS), in which diverse sugar utilization modules compete for phosphoryl flux from the general PTS proteins. Existing theoretical work predicts a winner-take-all outcome when this flux limits carbon uptake. To date, no ...

journal_title：Molecular microbiology

authors： Westermayer SA,Fritz G,Gutiérrez J,Megerle JA,Weißl MP,Schnetz K,Gerland U,Rädler JO

更新日期：2016-05-01 00:00:00

abstract：:Understanding the basis of bacterial persistence in latent infections is critical for eradication of tuberculosis. Analysis of Mycobacterium tuberculosis mRNA expression in an in vitro model of non-replicating persistence indicated that the bacilli require electron transport chain components and ATP synthesis for surv...

journal_title：Molecular microbiology

authors： Dhiman RK,Mahapatra S,Slayden RA,Boyne ME,Lenaerts A,Hinshaw JC,Angala SK,Chatterjee D,Biswas K,Narayanasamy P,Kurosu M,Crick DC

更新日期：2009-04-01 00:00:00

abstract：:Heteroduplexes between the DNA molecules of 12 lambdoid phages were analysed by electron microscopy. The positions of the regions of base sequence homology between the DNA molecules divide them into 35 segments, most of which have a number of alternative forms (alleles), which in general must be functionally homologou...

journal_title：Molecular microbiology

authors： Highton PJ,Chang Y,Myers RJ

更新日期：1990-08-01 00:00:00

abstract：:SecA is the dissociable ATPase subunit of the Escherichia coli preprotein translocase, and cycles in a nucleotide-modulated manner between the cytosol and the membrane. Overproduction of the integral subunits of the translocase, the SecY, SecE and SecG polypeptides, results in an increased level of membrane-bound SecA...

journal_title：Molecular microbiology

authors： van der Does C,den Blaauwen T,de Wit JG,Manting EH,Groot NA,Fekkes P,Driessen AJ

更新日期：1996-11-01 00:00:00

abstract：:The HPr kinase of Gram-positive bacteria is an ATP-dependent serine protein kinase, which phosphorylates the HPr protein of the bacterial phosphotransferase system (PTS) and is involved in the regulation of carbohydrate metabolism. The hprK gene from Enterococcus faecalis was cloned via polymerase chain reaction (PCR)...

journal_title：Molecular microbiology

authors： Kravanja M,Engelmann R,Dossonnet V,Blüggel M,Meyer HE,Frank R,Galinier A,Deutscher J,Schnell N,Hengstenberg W

更新日期：1999-01-01 00:00:00

abstract：:To investigate the possible role of accessory subunits of Escherichia coli DNA polymerase III holoenzyme (HE) in determining chromosomal replication fidelity, we have investigated the role of the dnaX gene. This gene encodes both the tau and gamma subunits of HE, which play a central role in the organization and funct...

journal_title：Molecular microbiology

authors： Pham PT,Zhao W,Schaaper RM

更新日期：2006-02-01 00:00:00

abstract：:Computer analysis of the crystallographic structure of the A subunit of Escherichia coli heat-labile toxin (LT) was used to predict residues involved in NAD binding, catalysis and toxicity. Following site-directed mutagenesis, the mutants obtained could be divided into three groups. The first group contained fully ass...

journal_title：Molecular microbiology

authors： Pizza M,Domenighini M,Hol W,Giannelli V,Fontana MR,Giuliani MM,Magagnoli C,Peppoloni S,Manetti R,Rappuoli R

更新日期：1994-10-01 00:00:00

abstract：:In vitro, the sigma(s) subunit of RNA polymerase (RNAP), RpoS, recognizes nearly identical -35 and -10 promoter consensus sequences as the vegetative sigma70. In vivo, promoter selectivity of RNAP holoenzyme containing either sigma(s) (Esigma(s)) or sigma70 (Esigma70) seems to be achieved by the differential ability o...

journal_title：Molecular microbiology

authors： Typas A,Hengge R

更新日期：2006-02-01 00:00:00

abstract：:Proteic toxin-antitoxin (TA) loci were first identified in bacterial plasmids, and they were regarded as involved in stable plasmid maintenance by a so-called 'addiction' mechanism. Later, chromosomally encoded TA loci were identified and their function ascribed to survival mechanisms when bacteria were subjected to s...

journal_title：Molecular microbiology

authors： Nieto C,Pellicer T,Balsa D,Christensen SK,Gerdes K,Espinosa M

更新日期：2006-02-01 00:00:00

abstract：:The chromosomes of the soil bacteria Streptomyces, unlike those of most other bacteria, are linear DNA molecules. Their telomeres contain long-terminal inverted repeats and covalently bound terminal proteins (TPs). These bacteria also harbour linear plasmids that share the same structural features. In this study, we d...

journal_title：Molecular microbiology

authors： Yang CC,Huang CH,Li CY,Tsay YG,Lee SC,Chen CW

更新日期：2002-01-01 00:00:00

abstract：:The Bacillus subtilis genome encodes three apparent lipoyl ligase homologues: yhfJ, yqhM and ywfL, which we have renamed lplJ, lipM and lipL respectively. We show that LplJ encodes the sole lipoyl ligase of this bacterium. Physiological and biochemical characterization of a ΔlipM strain showed that LipM is absolutely ...

journal_title：Molecular microbiology

authors： Martin N,Christensen QH,Mansilla MC,Cronan JE,de Mendoza D

更新日期：2011-04-01 00:00:00

abstract：:Pseudomonas fluorescens ATCC 17400 produces pyoverdine under iron-limiting conditions. A Tn5 mutant, 2G11, produced lower amounts of different pyoverdine forms and was unable to grow under iron limitation caused by ethylenediamine-di(o-hydroxy-phenylacetic acid) (EDDHA) or zinc. This mutant was complemented by a 9.6 k...

journal_title：Molecular microbiology

authors： Gaballa A,Koedam N,Cornelis P

更新日期：1996-08-01 00:00:00

abstract：:We used DNA macroarray analysis to identify genes that respond to the status of the intracellular acetyl phosphate (acP) pool. Genes whose expression correlated negatively with the ability to synthesize acP (i.e. negatively regulated genes) function primarily in flagella biosynthesis, a result consistent with observat...

journal_title：Molecular microbiology

authors： Wolfe AJ,Chang DE,Walker JD,Seitz-Partridge JE,Vidaurri MD,Lange CF,Prüss BM,Henk MC,Larkin JC,Conway T

更新日期：2003-05-01 00:00:00

abstract：:The PII protein has been considered pivotal to the dual cascade regulating ammonia assimilation through glutamine synthetase activity. Here we show that PII, encoded by the glnB gene, is not always essential; for instance upon ammonia deprivation of a glnB deletion strain, glutamine synthetase can be deadenylylated as...

journal_title：Molecular microbiology

authors： van Heeswijk WC,Hoving S,Molenaar D,Stegeman B,Kahn D,Westerhoff HV

更新日期：1996-07-01 00:00:00

abstract：:Most of the genes required for the conjugative transfer of DNA are encoded by the 33 kb transfer (tra) operon of F-like conjugative plasmids. Transcription of the tra operon is positively regulated by the TraJ transcriptional activator which, in turn, is negatively regulated by the FinOP fertility inhibition system. T...

journal_title：Molecular microbiology

authors： van Biesen T,Frost LS

更新日期：1994-11-01 00:00:00

abstract：:The minimum time (E) required for a new pair of replication origins (oriCs) produced upon initiating a round of replication to be ready to initiate the next round after one cell mass doubling, the 'eclipse', is explained in terms of a minimal distance (l(min)) that the replication forks must move away from oriC before...

journal_title：Molecular microbiology

authors： Zaritsky A,Vischer N,Rabinovitch A

更新日期：2007-01-01 00:00:00

abstract：:A 34 kb fragment of the Nocardia lactamdurans DNA carrying the cluster of early cephamycin biosynthetic genes was cloned in lambda EMBL3 by hybridization with probes internal to the pcbAB and pcbC genes of Penicillium chrysogenum and Streptomyces griseus. The pcbAB and pcbC genes were found to be closely linked togeth...

journal_title：Molecular microbiology

authors： Coque JJ,Martín JF,Calzada JG,Liras P

更新日期：1991-05-01 00:00:00

abstract：:In Aspergillus nidulans, proline can serve both as a carbon and a nitrogen source. The transcription of the prnB gene, encoding the proline transporter, is efficiently repressed only by the simultaneous presence of ammonium and glucose. Thus, repression of this gene demands the activation of the CreA repressor and the...

journal_title：Molecular microbiology

authors： Gómez D,García I,Scazzocchio C,Cubero B

更新日期：2003-10-01 00:00:00

abstract：:Certain endospore-forming soil dwelling bacteria are important human, animal or insect pathogens. These organisms produce spores containing an outer layer, the exosporium. The exosporium is the site of interactions between the spore and the soil environment and between the spore and the infected host during the initia...

journal_title：Molecular microbiology

authors： Stewart GC

更新日期：2017-05-01 00:00:00

abstract：:Capsular polysaccharides are well-established virulence factors of pathogenic bacteria. Their biosynthesis and export are regulated within the transmembrane polysaccharide assembly machinery by the autophosphorylation of atypical tyrosine-kinases, named BY-kinases. However, the accurate functioning of these tyrosine-k...

journal_title：Molecular microbiology

authors： Bechet E,Gruszczyk J,Terreux R,Gueguen-Chaignon V,Vigouroux A,Obadia B,Cozzone AJ,Nessler S,Grangeasse C

更新日期：2010-09-01 00:00:00

abstract：:Expression of the gene pcnB, encoding the dispensable Escherichia coli poly(A) polymerase (PAPI), which is toxic when overproduced, was investigated. Its promoter was identified and found to be moderately strong when used to express a beta-galactosidase reporter. Expression levels were not affected by increasing or de...

journal_title：Molecular microbiology

authors： Binns N,Masters M

更新日期：2002-06-01 00:00:00

abstract：:Lipopolysaccharides (LPS), particularly the O-antigen component, are one of many virulence determinants necessary for Shigella flexneri pathogenesis. O-antigen biosynthesis is determined mostly by genes located in the rfb region of the chromosome. The rfc/wzy gene encodes the O-antigen polymerase, an integral membrane...

journal_title：Molecular microbiology

authors： Daniels C,Vindurampulle C,Morona R

更新日期：1998-06-01 00:00:00

abstract：:We present structural and biochemical evidence for a redox switch in the archaeal transcriptional regulator SurR of Pyrococcus furiosus, a hyperthermophilic anaerobe. P. furiosus produces H(2) during fermentation, but undergoes a metabolic shift to produce H(2) S when elemental sulfur (S(0) ) becomes available. Change...

journal_title：Molecular microbiology

authors： Yang H,Lipscomb GL,Keese AM,Schut GJ,Thomm M,Adams MW,Wang BC,Scott RA

更新日期：2010-09-01 00:00:00

abstract：:P66 is a Borrelia burgdorferi surface protein with β₃ integrin binding and channel forming activities. In this study, the role of P66 in mammalian and tick infection was examined. B. burgdorferiΔp66 strains were not infectious in wild-type, TLR2⁻/⁻- or MyD88⁻/⁻-deficient mice. Strains with p66 restored to the chromoso...

journal_title：Molecular microbiology

authors： Ristow LC,Miller HE,Padmore LJ,Chettri R,Salzman N,Caimano MJ,Rosa PA,Coburn J

更新日期：2012-09-01 00:00:00

abstract：:We recently described the use of selective transposon mutagenesis to generate a series of avirulent mutants of a pathogenic strain of Salmonella typhimurium. Cloning and sequencing of the insertion sites from two of these mutants reveals that both have identical locations within an open reading frame that is highly ho...

journal_title：Molecular microbiology

authors： Johnson K,Charles I,Dougan G,Pickard D,O'Gaora P,Costa G,Ali T,Miller I,Hormaeche C

更新日期：1991-02-01 00:00:00