The O-antigen gene cluster of Shigella boydii O11 and functional identification of its wzy gene.

abstract：:We report a rapid and reliable two-step multiplex polymerase chain reaction (PCR) assay to identify the 10 Bacteroides fragilis group species - Bacteroides caccae, B. distasonis, B. eggerthii, B. fragilis, B. merdae, B. ovatus, B. stercoris, B. thetaiotaomicron, B. uniformis and B. vulgatus. These 10 species were firs...

journal_title：FEMS microbiology letters

authors： Liu C,Song Y,McTeague M,Vu AW,Wexler H,Finegold SM

更新日期：2003-05-16 00:00:00

abstract：:The structural gene, adhA, for a thermostable primary alcohol dehydrogenase was cloned from Thermoanaerobacter ethanolicus JW200. Constitutive expression from its own promoter was observed in Escherichia coli. The nucleotide sequence of adhA corresponded to an open reading frame of 1197 bp, encoding a polypeptide of 3...

journal_title：FEMS microbiology letters

authors： Holt PJ,Williams RE,Jordan KN,Lowe CR,Bruce NC

更新日期：2000-09-01 00:00:00

abstract：:Among aerobic prokaryotes, many different terminal oxidase complexes have been described. Sequence comparison has revealed that the aa3-type cytochrome c oxidase and the bo3-type quinol oxidase are variations on the same theme: the heme-copper oxidase. A third member of this family has recently been recognized: the cb...

journal_title：FEMS microbiology letters

authors： van der Oost J,de Boer AP,de Gier JW,Zumft WG,Stouthamer AH,van Spanning RJ

更新日期：1994-08-01 00:00:00

abstract：:The steady-state levels of the aminopeptidase Y (APY1) transcript and the level of assayable aminopeptidase Y activity were measured under a variety of nutritional conditions. Specific APY1 mRNA is less abundant in cells grown in minimal medium than in cells grown in rich medium, while active enzyme levels follow just...

journal_title：FEMS microbiology letters

authors： Herrera-Camacho I,Suárez-Rendueles P

更新日期：1996-06-01 00:00:00

abstract：:The ADP-ribosylating enzymes are encoded in many pathogenic bacteria in order to affect essential functions of the host. In this study, we show that Neisseria gonorrhoeae possess a locus that corresponds to the ADP-ribosyltransferase NarE, a previously characterized enzyme in N. meningitidis The 291 bp coding sequence...

journal_title：FEMS microbiology letters

authors： Rodas PI,Álamos-Musre AS,Álvarez FP,Escobar A,Tapia CV,Osorio E,Otero C,Calderón IL,Fuentes JA,Gil F,Paredes-Sabja D,Christodoulides M

更新日期：2016-09-01 00:00:00

abstract：:The plant-growth promoting rhizobacterium Azospirillum lipoferum strain 4B generates in vitro a stable phase variant designated 4VI at frequencies of 10(-4) to 10(-3) per cell per generation. Variant 4VI displays pleitropic modifications, such as the loss of swimming motility and the inability to assimilate certain su...

journal_title：FEMS microbiology letters

authors： Vial L,Pothier JF,Normand P,Moënne-Loccoz Y,Bally R,Wisniewski-Dyé F

更新日期：2004-07-15 00:00:00

abstract：:DNA microarray technology was used to survey changes in gene expression in Pseudomonas fluorescens after mitomycin C treatment. As expected, genes associated with the SOS response were upregulated, such as those encoding the recombination protein RecA, DNA repair protein RecN, excinuclease ABC subunit A UvrA, and the ...

journal_title：FEMS microbiology letters

authors： Jin H,Retallack DM,Stelman SJ,Hershberger CD,Ramseier T

更新日期：2007-04-01 00:00:00

abstract：:Both form I and II ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) genes were detected in Thiobacillus intermedius by heterologous hybridization using specific probes from Anacystis nidulans and Rhodobacter sphaeroides, respectively. However, only the previously reported form I enzyme could be demonstrated i...

journal_title：FEMS microbiology letters

authors： Stoner MT,Shively JM

更新日期：1993-03-01 00:00:00

abstract：:We identified a novel type-III staphylococcal cassette chromosome mec (SCCmec) element carried by eight methicillin-resistant Staphylococcus aureus (MRSA) strains from different wards and patients in an Indian hospital. Although the pulsed-field gel electrophoresis pattern and spa types of eight strains were identical...

journal_title：FEMS microbiology letters

authors： Arakere G,Nadig S,Ito T,Ma XX,Hiramatsu K

更新日期：2009-03-01 00:00:00

abstract：:Tn10 transposon mutagenesis of Escherichia coli producing K99 fimbriae was carried out to identify host factors involved in regulation of biosynthesis of fimbriae. Two chromosomal mutants were obtained that showed a strongly reduced cell surface expression of K99 fimbriae upon colony blotting and ELISA. Analysis by in...

journal_title：FEMS microbiology letters

authors： Pilipcinec E,Huisman TT,Willemsen PT,Appelmelk BJ,de Graaf FK,Oudega B

更新日期：1994-10-15 00:00:00

abstract：:Crithidia oncopelti, Crithidia deanei and Crithidia desouzai are flagellates of the Trypanosomatidae family that present bacterium-like endosymbionts in their cytoplasm. Gelatin-SDS-PAGE analysis was used to characterize cell-associated and extracellular proteinases in these organisms. Our survey indicates that the pr...

journal_title：FEMS microbiology letters

authors： d'Avila-Levy CM,Melo AC,Vermelho AB,Branquinha MH

更新日期：2001-08-07 00:00:00

abstract：:In a large-scale gene disruption screen of Magnaporthe oryzae, a gene MoST1 encoding a protein belonging to the hexose transporter family was identified as a gene required for conidiation and culture pigmentation. The gene MoST1 located on chromosome V of the M. oryzae genome was predicted to be 1892 bp in length with...

journal_title：FEMS microbiology letters

authors： Saitoh H,Hirabuchi A,Fujisawa S,Mitsuoka C,Terauchi R,Takano Y

更新日期：2014-03-01 00:00:00

abstract：:The Gram-positive bacterium Streptococcus gordonii has been genetically engineered to allow the simultaneous expression of two heterologous proteins at the cell surface. A family of recombinant streptococci displaying two different antigens was constructed. All the strains were genetically stable and expressed both pr...

journal_title：FEMS microbiology letters

authors： Maggi T,Spinosa M,Ricci S,Medaglini D,Pozzi G,Oggioni MR

更新日期：2002-04-23 00:00:00

abstract：:Bacillus anthracis lethal toxin (PALF) stimulated the proliferation of human peripheral blood T-cells in vitro. Activation of T-lymphocytes by PALF required the presence of monocytes and did not result from a collaborative effect between T-cells and B-cells. PALF acted directly on monocytes and independently of T-cell...

journal_title：FEMS microbiology letters

authors： Guidi-Rontani C,Duflot E,Mock M

更新日期：1997-12-15 00:00:00

abstract：:We report the enhanced bactericidal activity of ofloxacin in drug-containing Eudragit E100(®) dispersions (EuCl-OFX) against Pseudomonas aeruginosa and the effect of the cationic polymer on bacterial membrane. Organisms treated with EuCl-OFX showed changes in cell morphology, altered outer membrane (OM) and cytoplasm...

journal_title：FEMS microbiology letters

authors： Romero VL,Pons P,Bocco JL,Manzo RH,Alovero FL

更新日期：2012-09-01 00:00:00

abstract：:A cytosolic chitinase (20 kDa by SDS-PAGE) was partially purified from Neurospora crassa. Linear kinetics for enzyme activity were obtained using the substrate [3H]-labelled regenerated chitin, the preparation yielding an apparent Km of 0.965 mg ml-1 and a Vmax of 3.83 micrograms GlcNAc min-1 (mg protein)-1. The enzym...

journal_title：FEMS microbiology letters

authors： McNab R,Glover LA

更新日期：1991-07-15 00:00:00

abstract：:The response regulator DegU and its cognate histidine kinase DegS constitute a two-component system in the Gram-positive soil bacterium Bacillus subtilis. The phosphorylated form of DegU is known to activate transcription of more than 120 genes in B. subtilis, including the bpr gene encoding bacillopeptidase F. To cha...

journal_title：FEMS microbiology letters

authors： Tsukahara K,Ogura M

更新日期：2008-03-01 00:00:00

abstract：:The molecular genetics of indole-3-acetic (IAA) synthesis and regulation in Azospirillum brasilense was investigated in this study. Tn5 mutagenesis was performed and five mutants with decreased IAA production were isolated. Five Tn5-inserted genes from these mutants were cloned and sequenced. Four genes were reported ...

journal_title：FEMS microbiology letters

authors： Xie B,Xu K,Zhao HX,Chen SF

更新日期：2005-07-01 00:00:00

abstract：:The hepA gene in Anabaena sp. strain PCC 7120 is required for normal formation of the polysaccharide layer of the heterocyst envelope. A plasmid bearing hepA, interrupted by a neomycin-resistance cassette, was transferred by conjugation to wild type Anabaena variabilis ATCC 29413, so that the interrupted hepA gene rep...

journal_title：FEMS microbiology letters

authors： Leganés F

更新日期：1994-10-15 00:00:00

abstract：:Gut microbiota has been suggested as an important component of host defense. However, microbiota in other parts of the body have rarely been characterized. In our present work, we give a detailed view of the body of Spodoptera exigua larvae, the midgut with intestinal contents (MG), midgut excluding intestinal content...

journal_title：FEMS microbiology letters

authors： Gao X,Li W,Luo J,Zhang L,Ji J,Zhu X,Wang L,Zhang K,Zhang S,Cui J

更新日期：2020-02-01 00:00:00

abstract：:We have established an improved large deletion method in Escherichia coli genome using a combination of two different recombination systems, lambda Red and Cre/loxP. The loxP site could be rapidly and efficiently integrated in the genome by lambda Red and large deletions of both 117- and 165-kbp regions could be gener...

journal_title：FEMS microbiology letters

authors： Fukiya S,Mizoguchi H,Mori H

更新日期：2004-05-15 00:00:00

abstract：:Clostridium difficile is the causative agent for pseudomembranous colitis in humans. Toxic strains of C. difficile produce two toxins, toxin A and toxin B. A reliable and definitive method of typing the toxic strains of C. difficile is needed since nosocomial cross infection is a primary concern in hospitals and other...

journal_title：FEMS microbiology letters

authors： McMillin DE,Muldrow LL

更新日期：1992-04-01 00:00:00

abstract：:Molecular microbial ecology studies are heavily reliant on 'Universal' 16S rRNA gene primers for elucidating microbial community structure and composition, and yet primer design and optimization is often overlooked. Primers that exhibit minor biases due to primer-template mismatches can substantially alter the pool of...

journal_title：FEMS microbiology letters

authors： Thomas MC,Thomas DK,Selinger LB,Inglis GD

更新日期：2011-07-01 00:00:00

abstract：:Nitrogenase is oxygen-labile. Cyanobacterial heterocysts can fix N(2) in an oxic milieu because their interior is micro-oxic, for which the glycolipid layer of the heterocyst envelope is required. ORF all5341 of the Anabaena sp. genome predicts a glycosyl transferase. An insertional mutant of all5341 synthesized only ...

journal_title：FEMS microbiology letters

authors： Awai K,Wolk CP

更新日期：2007-01-01 00:00:00

abstract：:The cyanobacterium Synechocystis 6803 was tagged by chromosomal integration of the firefly luciferase gene, luc, resulting in the modified strain Synechocystis 6803-luc. The tagged cells were monitored in Baltic Sea microcosms both by detection of the luc gene by PCR amplification and by measurement of luc gene expres...

journal_title：FEMS microbiology letters

authors： Möller A,Norrby AM,Gustafsson K,Jansson J

更新日期：1995-06-01 00:00:00

abstract：:In this report we describe the development of a highly stringent and dually regulated promoter system for Shigella flexneri. Dual regulation was provided by utilizing a promoter susceptible to control by the bacteriophage P1 temperature-sensitive C1 repressor that in turn was under the transcriptional control of LacI....

journal_title：FEMS microbiology letters

authors： Schofield DA,Westwater C,Dolan JW,Norris JS,Schmidt MG

更新日期：2002-10-08 00:00:00

abstract：:Bordetella calmodulin-like protein was purified from culture supernatant fluid of B. pertussis, B. parapertussis and B. bronchiseptica by successive chromatography on hydroxyapatite, Toyopearl HW-50F and QAE-Toyopearl 550C columns. The purified calmodulin-like protein appeared to be homogeneous by SDS-polyacrylamide g...

journal_title：FEMS microbiology letters

authors： Nagai M,Endoh M,Danbara H,Nakase Y

更新日期：1994-02-15 00:00:00

abstract：:Two monoclonal antibodies (G6 and 7B), generated against a 63-kDa stress protein (GSP63) from Neisseria gonorrhoeae strain VP1, were used to investigate the antigenic heterogeneity of GSP63 among the Neisseriaceae and its antigenic relationship with the Hsp60 heat-shock protein family. Immunoblotting experiments demon...

journal_title：FEMS microbiology letters

authors： Pannekoek Y,Dankert J,van Putten JP

更新日期：1992-11-15 00:00:00

abstract：:Two type B15 P1.16 strains of Neisseria meningitidis were examined by immunogold electron microscopy for accessibility of two outer membrane protein (OMPs) to monoclonal antibodies. Both strains exhibited cell-to-cell variation of one epitope of the Class 3 OMP (P3.15) and one of the Class 1 OMPs (P1.16) when grown in...

journal_title：FEMS microbiology letters

authors： Wall RA,Davies HA,Borriello SP

更新日期：1989-11-01 00:00:00

abstract：:Autotrophic fixation of carbon dioxide into cellular carbon occurs via several pathways but quantitatively, the Calvin-Benson-Bassham cycle is the most important. CbbR regulates the expression of the cbb genes involved in CO2 fixation via the Calvin-Benson-Bassham cycle in a number of autotrophic bacteria. A gene pote...

journal_title：FEMS microbiology letters

authors： Esparza M,Jedlicki E,Dopson M,Holmes DS

更新日期：2015-08-01 00:00:00