Functional stratification of the Spitzenkörper of Neurospora crassa.

abstract：:Although diminutive in size, bacteria possess highly diverse and spatially confined cellular structures. Two related alphaproteobacteria, Sinorhizobium meliloti and Caulobacter crescentus, serve as models for investigating the genetic basis of morphological variations. S. meliloti, a symbiont of leguminous plants, syn...

journal_title：Molecular microbiology

authors： Fields AT,Navarrete CS,Zare AZ,Huang Z,Mostafavi M,Lewis JC,Rezaeihaghighi Y,Brezler BJ,Ray S,Rizzacasa AL,Barnett MJ,Long SR,Chen EJ,Chen JC

更新日期：2012-06-01 00:00:00

abstract：:A reputed iron-responsive region, which contains multiple nuclear protein-binding DNA sequences, was shown previously to regulate iron-inducible transcription of the ap65-1 gene in the protozoan pathogen, Trichomonas vaginalis. These DNA sequences include two overlapping MYB recognition elements (MRE-1/MRE-2r) and thr...

journal_title：Molecular microbiology

authors： Ong SJ,Huang SC,Liu HW,Tai JH

更新日期：2004-06-01 00:00:00

abstract：:A 2.7 kb fragment of Helicobacter pylori UA802 chromosomal DNA was cloned and sequenced. Three open reading frames (designated ORF1, ORF2 and ORF3, respectively) were predicted from the DNA sequence, of which ORF1 and ORF2 appeared to be located within the same operon. The deduced 611-amino-acid sequence of ORF1, a P-...

journal_title：Molecular microbiology

authors： Ge Z,Hiratsuka K,Taylor DE

更新日期：1995-01-01 00:00:00

abstract：:Leishmania parasites target macrophages in their mammalian hosts and proliferate within the mature phagolysosome compartment of these cells. Intracellular amastigote stages are dependent on sugars as a major carbon source in vivo, but retain the capacity to utilize other carbon sources. To investigate whether amastigo...

journal_title：Molecular microbiology

authors： Saunders EC,Naderer T,Chambers J,Landfear SM,McConville MJ

更新日期：2018-04-01 00:00:00

abstract：:Sigma28 controls the expression of flagella-related genes and is the most widely distributed alternative sigma factor, present in motile Gram-positive and Gram-negative bacteria. The distinguishing feature of sigma28 promoters is a long -10 region (GCCGATAA). Despite the fact that the upstream GC is highly conserved, ...

journal_title：Molecular microbiology

authors： Koo BM,Rhodius VA,Campbell EA,Gross CA

更新日期：2009-05-01 00:00:00

abstract：:In this work we present the localization and characterization of the repl promoter (Prepl) and show aspects of the regulation. Comparison of Prepl with other autoregulated replication protein gene promoters revealed similarities, but Prepl differs from some of these characterized promoters in not being regulated by th...

journal_title：Molecular microbiology

authors： Gammie AE,Crosa JH

更新日期：1991-12-01 00:00:00

abstract：:A new locus required for type 4 pilus biogenesis by Pseudomonas aeruginosa has been identified. A pilE mutant, designated MJ-6, was broadly resistant to pili-specific phages and unable to translocate across solid surfaces by the pilus-dependent mechanism of twitching motility (Twt-). Immunoblot analysis demonstrated t...

journal_title：Molecular microbiology

authors： Russell MA,Darzins A

更新日期：1994-09-01 00:00:00

abstract：:Integration host factor (IHF) binds to two sites near the origin of transfer of the conjugative antibiotic resistance plasmid, R100. DNase I footprinting shows that one site is immediately adjacent to oriT and the gene X promoter, and another is adjacent to the traM promoter. A third site, known only from retardation ...

journal_title：Molecular microbiology

authors： Dempsey WB,Fee BE

更新日期：1990-06-01 00:00:00

abstract：:Infections with the azole-refractory yeast Candida glabrata are now commonly treated with the echinocandins caspofungin (CSF) or micafungin (MCF). True resistance (>  32-fold decreased susceptibility) to these lipopeptide inhibitors of cell wall synthesis is rare and strictly associated with mutations in integral memb...

journal_title：Molecular microbiology

authors： Healey KR,Katiyar SK,Raj S,Edlind TD

更新日期：2012-10-01 00:00:00

abstract：:Exposure of bacterial cells to temperature changes induces the synthesis of a set proteins. We investigated the control of expression of the cspA gene, coding for the major cold-shock protein of Escherichia coli. This protein was shown to be transiently induced upon shift to low temperature. We demonstrated that the c...

journal_title：Molecular microbiology

authors： Goldenberg D,Azar I,Oppenheim AB

更新日期：1996-01-01 00:00:00

abstract：:Natural genetic transformation in Streptococcus pneumoniae is controlled in part by a quorum-sensing system mediated by a peptide pheromone called competence-stimulating peptide (CSP), which acts to coordinate transient activation of genes required for competence. To characterize the transcriptional response and regul...

journal_title：Molecular microbiology

authors： Peterson SN,Sung CK,Cline R,Desai BV,Snesrud EC,Luo P,Walling J,Li H,Mintz M,Tsegaye G,Burr PC,Do Y,Ahn S,Gilbert J,Fleischmann RD,Morrison DA

更新日期：2004-02-01 00:00:00

abstract：:Enhancement of enzyme thermostability by protein engineering gives us information about the thermostabilization mechanism as well as advantages for industrial use of enzymes. In this study, we enhanced the thermostability of endoglucanase EngB, one component of the cellulase complex (cellulosome) from Clostridium cell...

journal_title：Molecular microbiology

authors： Murashima K,Kosugi A,Doi RH

更新日期：2002-08-01 00:00:00

abstract：:A number of plasmid-encoded gene systems are thought to stabilize plasmids by killing plasmid-free cells (also termed post-segregational killing or plasmid addiction). Here we analyse the mechanisms of plasmid stabilization by ccd of F, parDE of RP4 and parD of R1, and compare them to hok/sok of R1. To induce synchron...

journal_title：Molecular microbiology

authors： Jensen RB,Grohmann E,Schwab H,Díaz-Orejas R,Gerdes K

更新日期：1995-07-01 00:00:00

abstract：:Escherichia coli RnlA-RnlB is a newly identified toxin-antitoxin (TA) system that plays a role in bacteriophage resistance. RnlA functions as a toxin with mRNA endoribonuclease activity and the cognate antitoxin RnlB inhibits RnlA toxicity in E. coli cells. Interestingly, T4 phage encodes the antitoxin Dmd, which acts...

journal_title：Molecular microbiology

authors： Wei Y,Gao ZQ,Otsuka Y,Naka K,Yonesaki T,Zhang H,Dong YH

更新日期：2013-12-01 00:00:00

abstract：:The ArsAB extrusion pump encoded by the ars operon of Escherichia coli plasmid R773 confers resistance to the toxic trivalent metalloids arsenite [As(III)] and antimonite [Sb(III)]. The ArsA ATPase, the catalytic subunit of the pump, has two homologous halves, A1 and A2. At the interface of these two halves are two nu...

journal_title：Molecular microbiology

authors： Ruan X,Bhattacharjee H,Rosen BP

更新日期：2008-01-01 00:00:00

abstract：:We have found a simple relationship between bacterial growth rate and the translation elongation rate. Thus, for a set of defined ribosomal protein S12 mutations which reduce the efficiency of the ternary complex ribosome interaction (and restrict the frequency of translational errors) there is a linear relationship b...

journal_title：Molecular microbiology

authors： Tubulekas I,Hughes D

更新日期：1993-01-01 00:00:00

abstract：:Transposases mediate transposition first by binding specific DNA end sequences that define a transposable element and then by organizing protein and DNA into a highly structured and stable nucleoprotein 'synaptic' complex. Synaptic complex assembly is a central checkpoint in many transposition mechanisms. The Tn5 syna...

journal_title：Molecular microbiology

authors： Adams CD,Schnurr B,Skoko D,Marko JF,Reznikoff WS

更新日期：2006-12-01 00:00:00

abstract：:Phospholipases C play a role in the pathogenesis of several bacteria. Mycobacterium tuberculosis, the causative agent of tuberculosis, possesses four genes encoding putative phospholipases C, plcA, plcB, plcC and plcD. However, the contribution of these genes to virulence is unknown. We constructed four single mutants...

journal_title：Molecular microbiology

authors： Raynaud C,Guilhot C,Rauzier J,Bordat Y,Pelicic V,Manganelli R,Smith I,Gicquel B,Jackson M

更新日期：2002-07-01 00:00:00

abstract：:Previous studies with purified variants of the 434 repressor having different operator-binding specificities have demonstrated the interactions of a heterodimeric repressor with a hybrid operator site. The present study investigates the interactions between the 434 repressor and its operator site. The optimum 434 oper...

journal_title：Molecular microbiology

authors： Webster C,Merryweather A,Brammar W

更新日期：1992-02-01 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 translocation of the diphtheria toxin catalytic domain from the lumen of early endosomes into the cytosol of eukaryotic cells is an essential step in the intoxication process. We have previously shown that the in vitro translocation of the catalytic domain from the lumen of toxin pre-loaded endosomal vesicles to t...

journal_title：Molecular microbiology

authors： Trujillo C,Taylor-Parker J,Harrison R,Murphy JR

更新日期：2010-05-01 00:00:00

abstract：:Gene expression in the Leishmania is controlled post-transcriptionally, and is likely to be impacted by both 5' and 3' untranslated regions (UTRs). We have investigated the effects of trinucleotides in the AUG-proximal region (APR) (i.e. positions -3 to -1 upstream of an AUG) on two reporter genes in the context of an...

journal_title：Molecular microbiology

authors： Stanton JD,Mensa-Wilmot K

更新日期：2006-08-01 00:00:00

abstract：:The human oral bacterium Streptococcus gordonii expresses, on the cell surface, two antigenically related high-molecular-mass polypeptides denoted CshA and CshB, encoded by genes at separate chromosomal loci. The precursor form of CshA is composed of four distinct segments: (i) a 41-amino-acid residue leader peptide, ...

journal_title：Molecular microbiology

authors： McNab R,Jenkinson HF,Loach DM,Tannock GW

更新日期：1994-11-01 00:00:00

abstract：:Staphylococcus aureus strain M produces large amounts of capsular polysaccharide. It produces a non-encapsulated variant at a frequency of 0.01% at 37 degrees C. At high temperature (43 degrees C), the frequency of capsule loss was shown to be 1-38%. A 19 kb plasmid and a prophage were found to be carried by the M str...

journal_title：Molecular microbiology

authors： Lee CY

更新日期：1992-06-01 00:00:00

abstract：:The fibronectin binding protein, FnBPA, is a multifunctional microbial surface component recognizing adhesive matrix molecule (MSCRAMM) that promotes bacterial adherence to immobilized fibrinogen and elastin via the N-terminal A domain. The binding site for fibrinogen and elastin was localized to subdomains N2N3. A th...

journal_title：Molecular microbiology

authors： Keane FM,Loughman A,Valtulina V,Brennan M,Speziale P,Foster TJ

更新日期：2007-02-01 00:00:00

abstract：:A new virus of halophilic Archaea is reported by Liu et al., and is remarkable in many ways. SNJ2 is the first temperate, pleomorphic virus (pleolipovirus) that integrates into the genome of its host. Analyses of the virus structure and its genome have provided an unexpected puzzle while at the same time solving anoth...

journal_title：Molecular microbiology

authors： Dyall-Smith M,Porter K

更新日期：2015-12-01 00:00:00

abstract：:A series of lipoproteins was detected in the membrane fraction of Yersinia enterocolitica W227, a typical strain from serotype O:9. At least two of them, YlpA and YlpB, are encoded by the pYV plasmid. The sequence of ylpA reveals the presence of a typical lipoprotein signal peptide. The mature YlpA protein would be 22...

journal_title：Molecular microbiology

authors： China B,Michiels T,Cornelis GR

更新日期：1990-09-01 00:00:00

abstract：:Helicobacter pylori persists deep in the human gastric mucus layer in a harsh, nutrient-poor environment. Survival under these conditions depends on the ability of this human pathogen to invoke starvation/stress responses when needed. Unlike many bacteria, H. pylori lacks starvation/stress-responding alternative sigma...

journal_title：Molecular microbiology

authors： Yang ZX,Zhou YN,Yang Y,Jin DJ

更新日期：2010-08-01 00:00:00

abstract：:Two-component signal transduction (TCST) pathways are regulatory systems that are highly homologous throughout the bacterial kingdom. Their established role in virulence and absence in vertebrates has made TCST an attractive target for therapeutic intervention. However, such systems have yet to yield success in the de...

journal_title：Molecular microbiology

authors： Hubbard JA,MacLachlan LK,King GW,Jones JJ,Fosberry AP

更新日期：2003-09-01 00:00:00

abstract：:In this paper we describe the chromosomal location of various loci in Erwinia chrysanthemi strain 3937. Auxotrophic markers were obtained by chemical mutagenesis, antibiotic resistances were isolated spontaneously and mutations in sugar utilization were obtained by means of Mu insertions. These markers were located on...

journal_title：Molecular microbiology

authors： Hugouvieux-Cotte-Pattat N,Reverchon S,Robert-Baudouy J

更新日期：1989-05-01 00:00:00