The free and bound forms of Lpp occupy distinct subcellular locations in Escherichia coli.

abstract：:In the budding yeast Saccharomyces cerevisiae, the preservation of the mating competent haploid (a or alpha) and the mating incompetent diploid (a/alpha) is necessary to prevent aneuploidy. Once haploid cells respond to pheromone, the mating-specific signal transduction pathway is activated, and the MAP kinase Fus3 ph...

journal_title：Molecular microbiology

authors： Gelli A

更新日期：2002-11-01 00:00:00

abstract：:Understanding promoter regulation and signal-transduction systems in pathogenic mycobacteria is critical for uncovering the processes that govern interactions of these bacteria with the human host. In order to develop additional genetic tools for analysis of mycobacterial promoters, the xyIE gene from Pseudomonas was ...

journal_title：Molecular microbiology

authors： Curcic R,Dhandayuthapani S,Deretic V

更新日期：1994-09-01 00:00:00

abstract：:We have cloned a gene encoding a polygalacturonase (PG) in the filamentous fungus Aspergillus niger RH5344. The structural gene comprises 1141 bp coding for 362 amino acids and the open reading frame is disrupted by one intron of 52 bp. Eukaryotic consensus sequences for transcription regulation are found only in devi...

journal_title：Molecular microbiology

authors： Ruttkowski E,Khanh NQ,Wientjes FJ,Gottschalk M

更新日期：1991-06-01 00:00:00

abstract：:Renewed interest in gene amplification stems from its importance in evolution and a variety of medical problems ranging from drug resistance to cancer. However, amplified DNA segments (amplicons) are not fully characterized in any organism. Here we report a novel Acinetobacter baylyi system for genome-wide studies. Am...

journal_title：Molecular microbiology

authors： Seaton SC,Elliott KT,Cuff LE,Laniohan NS,Patel PR,Neidle EL

更新日期：2012-02-01 00:00:00

abstract：:In almost all bacteria, cell division is co-ordinated by the essential tubulin homologue FtsZ and represents an attractive but as yet unexploited target for new antibiotics. The benzamides, e.g. PC190723, are potent FtsZ inhibitors that have the potential to yield an important new class of antibiotic. However, the evo...

journal_title：Molecular microbiology

authors： Adams DW,Wu LJ,Errington J

更新日期：2016-03-01 00:00:00

abstract：:In nitrogen-poor soils, rhizobia elicit nodule formation on legume roots, within which they differentiate into bacteroids that fix atmospheric nitrogen. Protection against reactive oxygen species (ROS) was anticipated to play an important role in Rhizobium-legume symbiosis because nitrogenase is extremely oxygen sensi...

journal_title：Molecular microbiology

authors： Santos R,Hérouart D,Puppo A,Touati D

更新日期：2000-11-01 00:00:00

abstract：:It is now well established that the sigma S subunit of RNA polymerase is a master regulator in a complex regulatory network that governs the expression of many stationary-phase-inducible genes in Escherichia coli. In this review, more recent findings will be summarized that demonstrate that sigma S also acts as a glob...

journal_title：Molecular microbiology

authors： Hengge-Aronis R

更新日期：1996-09-01 00:00:00

abstract：:The Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) family of antigenically diverse proteins is expressed on the surface of human erythrocytes infected with the malaria parasite P. falciparum, and mediates cytoadherence to the host vascular endothelium. In this report, we show that export of PfEMP1 is sl...

journal_title：Molecular microbiology

authors： Kriek N,Tilley L,Horrocks P,Pinches R,Elford BC,Ferguson DJ,Lingelbach K,Newbold CI

更新日期：2003-11-01 00:00:00

abstract：:Francisella tularensis are the causative agent of the zoonotic disease, tularaemia. Among four F. tularensis subspecies, ssp. novicida (F. novicida) is pathogenic only for immunocompromised individuals, while all four subspecies are pathogenic for mice. This study utilized proteomic and bioinformatic approaches to ide...

journal_title：Molecular microbiology

authors： Hager AJ,Bolton DL,Pelletier MR,Brittnacher MJ,Gallagher LA,Kaul R,Skerrett SJ,Miller SI,Guina T

更新日期：2006-10-01 00:00:00

abstract：:The recent emergence of indolent and rapidly fatal drug-resistant strains of Mycobacterium tuberculosis has renewed interest in defining the molecular mechanisms of drug resistance in the tubercle bacilli. In this report, we have examined the mechanism of resistance to streptomycin (Sm) in M. tuberculosis through the ...

journal_title：Molecular microbiology

authors： Nair J,Rouse DA,Bai GH,Morris SL

更新日期：1993-11-01 00:00:00

abstract：:Penicillium chrysogenum is the main industrial producer of the β-lactam antibiotic penicillin, the most commonly used drug in the treatment of bacterial infections. Recently, a functional MAT1-1 locus encoding the α-box transcription factor MAT1-1-1 was discovered to control sexual development in P. chrysogenum. As on...

journal_title：Molecular microbiology

authors： Becker K,Beer C,Freitag M,Kück U

更新日期：2015-06-01 00:00:00

abstract：:The stable RNA promoters of Escherichia coli are exquisitely sensitive to variations in the superhelical density of DNA. Previously, we have shown that binding of the DNA architectural protein FIS at the upstream activating sequences (UASs) of stable RNA promoters prevents the transcription complexes from inactivation...

journal_title：Molecular microbiology

authors： Rochman M,Blot N,Dyachenko M,Glaser G,Travers A,Muskhelishvili G

更新日期：2004-07-01 00:00:00

abstract：:Deletions or substitutions of amino acids at the carboxyl-terminus of the heat-labile enterotoxin B subunit (EtxB) affect its assembly into pentamers in a temperature-dependent manner. At 42 degrees C, the mutations prevent the B subunits from achieving their final pentameric structure resulting in membrane associatio...

journal_title：Molecular microbiology

authors： Sandkvist M,Bagdasarian M

更新日期：1993-11-01 00:00:00

abstract：:Helicobacter pylori is a human gastric pathogen associated with gastric and duodenal ulcers as well as gastric cancer. Mounting evidence suggests this pathogen's motility is prerequisite for successful colonization of human gastric tissues. Here, we isolated an H. pylori G27 HP0518 mutant exhibiting altered motility i...

journal_title：Molecular microbiology

authors： Asakura H,Churin Y,Bauer B,Boettcher JP,Bartfeld S,Hashii N,Kawasaki N,Mollenkopf HJ,Jungblut PR,Brinkmann V,Meyer TF

更新日期：2010-12-01 00:00:00

abstract：:The 9.5 kb virB operon is the largest of the six major operons in the Ti plasmid vir region. This operon contains eleven genes, the largest of which is virB4. This gene encodes an 84 kDa protein whose function has not been identified. Its roles in conferring virulence on Agrobacterium tumefaciens and in the T-DNA tran...

journal_title：Molecular microbiology

authors： Shirasu K,Koukolíková-Nicola Z,Hohn B,Kado CI

更新日期：1994-02-01 00:00:00

abstract：:A 1.2kb DNA fragment was cloned from Synechococcus sp. PCC7942, which is able phenotypically to complement a phoR creC Escherichia coli mutant for the expression of alkaline phosphatase. A 2.5 kb DNA fragment encompassing the putative gene was then cloned and its complete nucleotide sequence determined. Nucleotide seq...

journal_title：Molecular microbiology

authors： Aiba H,Nagaya M,Mizuno T

更新日期：1993-04-01 00:00:00

abstract：:The human stomach pathogen Helicobacter pyloriattaches to healthy and inflamed gastric tissue through members of a paralogous family of 'Helicobacter outer membrane proteins' (Hops), including adhesins BabA, SabA, HopQ, LabA and HopZ. Hops share a conserved 25 kDa C-terminal region that is thought to form an autotrans...

journal_title：Molecular microbiology

authors： Coppens F,Castaldo G,Debraekeleer A,Subedi S,Moonens K,Lo A,Remaut H

更新日期：2018-10-01 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：:The identical partial deep-core structure of Hep alpha 1-3Hep alpha 1-5KDO in Salmonella typhimurium LT2 LPS and Neisseria gonorrhoeae LOS enabled us to isolate a DNA fragment from N. gonorrhoeae that was able to complement the alpha 1,5 LOS heptosyltransferase defect in the S. typhimurium rfaC630 (SA1377) mutant. SDS...

journal_title：Molecular microbiology

authors： Zhou D,Lee NG,Apicella MA

更新日期：1994-11-01 00:00:00

abstract：:The collective function of secreted pathogen effector molecules is to enhance the virulence and avirulence activity of the pathogen during the infection of its host. While the activity of a majority of pathogen effectors is unknown, several classes of effector molecules have been well characterized. Among these includ...

journal_title：Molecular microbiology

authors： Tian M,Day B

更新日期：2006-09-01 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：:Candida albicans hypha formation which has been stimulated via the Ras1-cAMP-Efg1 signalling cascade is inhibited by farnesol, a C. albicans autoregulatory factor, and small molecules such as dodecanol. In cultures containing farnesol or dodecanol, hypha formation was restored upon addition of dibutyryl-cAMP. The CAI4...

journal_title：Molecular microbiology

authors： Davis-Hanna A,Piispanen AE,Stateva LI,Hogan DA

更新日期：2008-01-01 00:00:00

abstract：:Escherichia coli has two heat shock regulons under the transcriptional control of Esigma32 and EsigmaE RNA polymerases. These polymerases control the expression of genes, the products of which are needed for correct folding of proteins in the cytoplasm and the extracytoplasm respectively. In this study, we report that...

journal_title：Molecular microbiology

authors： Klein G,Dartigalongue C,Raina S

更新日期：2003-04-01 00:00:00

abstract：:The O-antigen of Salmonella lipopolysaccharide is a major antigenic determinant and its chemical composition forms the basis for Salmonella serotyping. Modifications of the O-antigen that can affect the serotype include those carried out by the products of glycosyltransferase operons (gtr), which are present on specif...

journal_title：Molecular microbiology

authors： Broadbent SE,Davies MR,van der Woude MW

更新日期：2010-07-01 00:00:00

abstract：:Bacterial cytokinesis requires the divisome, a complex of proteins that co-ordinates the invagination of the cytoplasmic membrane, inward growth of the peptidoglycan layer and the outer membrane. Assembly of the cell division proteins is tightly regulated and the order of appearance at the future division site is well...

journal_title：Molecular microbiology

authors： van den Ent F,Vinkenvleugel TM,Ind A,West P,Veprintsev D,Nanninga N,den Blaauwen T,Löwe J

更新日期：2008-04-01 00:00:00

abstract：:Transcription in vitro of two osmoregulated promoters, for the Escherichia coli osmB and osmY genes, was analysed using two species of RNA polymerase holoenzyme reconstituted from purified core enzyme and either sigma D (sigma 70, the major sigma in exponentially growing cells) or sigma S (sigma 38, the principal sigm...

journal_title：Molecular microbiology

authors： Ding Q,Kusano S,Villarejo M,Ishihama A

更新日期：1995-05-01 00:00:00

abstract：:Bacterial autotransporters consist of an N-terminal 'passenger domain' that is transported into the extracellular space by an unknown mechanism and a C-terminal 'beta-domain' that forms a beta-barrel in the outer membrane. Recent studies have revealed that fully assembled autotransporters have an unusual architecture ...

journal_title：Molecular microbiology

authors： Ieva R,Skillman KM,Bernstein HD

更新日期：2008-01-01 00:00:00

abstract：:Post-transcriptional repression of porin synthesis has emerged as a major function of Hfq-dependent, small non-coding RNAs (sRNAs). Many enterobacteria express OmpX-like porins, a family of outer membrane proteins whose physiological roles and structural properties have been studied intensively. While regulatory sRNAs...

journal_title：Molecular microbiology

authors： Papenfort K,Pfeiffer V,Lucchini S,Sonawane A,Hinton JC,Vogel J

更新日期：2008-05-01 00:00:00

abstract：:It has been hypothesized that the dinR gene product of Bacillus subtilis acts as a repressor of the SOS regulon by binding to DNA sequences located upstream of SOS genes, including dinR and recA. Following activation as a result of DNA damage, RecA is believed to catalyse DinR-autocleavage, thus derepressing the SOS r...

journal_title：Molecular microbiology

authors： Haijema BJ,van Sinderen D,Winterling K,Kooistra J,Venema G,Hamoen LW

更新日期：1996-10-01 00:00:00

abstract：:Like many other bacteria, Burkholderia sp. take up iron in its ferric form via siderophore-dependent transporters. We observed that mutant strains of B. cenocepacia H111 unable to synthesize siderophores did not exhibit any growth defect under iron limited conditions. This finding suggested that this opportunistic pat...

journal_title：Molecular microbiology

authors： Mathew A,Eberl L,Carlier AL

更新日期：2014-02-01 00:00:00