Regulation of biosynthesis and transport of aromatic amino acids in low-GC Gram-positive bacteria.

abstract：:A species of Dechlorospirillum was isolated from an Fe(II)-oxidizing, opposing-gradient-culture enrichment using an inoculum from a circumneutral, freshwater creek that showed copious amounts of Fe(III) (hydr)oxide precipitation. In gradient cultures amended with a redox indicator to visualize the depth of oxygen pene...

journal_title：FEMS microbiology letters

authors： Picardal FW,Zaybak Z,Chakraborty A,Schieber J,Szewzyk U

更新日期：2011-06-01 00:00:00

abstract：:We examined the effect of the pyridoxal 5'-phosphate (PLP) cofactor on the activity and stability of the psychrophilic alanine racemase, having a high catalytic activity at low temperature, from Bacillus psychrosaccharolyticus at high temperatures. The decrease in the enzyme activity at incubation temperatures over 40...

journal_title：FEMS microbiology letters

authors： Okubo Y,Yokoigawa K,Esaki N,Soda K,Misono H

更新日期：2000-11-15 00:00:00

abstract：:We report the construction of two broad host range promoter-probe plasmid vectors for rapid analysis of promoters in Gram-negative bacteria. The new vectors, pME4507 and pME4510, carry carbenicillin and gentamycin resistance genes, respectively, and are small sized (4 kb) with a flexible multiple cloning site to facil...

journal_title：FEMS microbiology letters

authors： Rist M,Kertesz MA

更新日期：1998-12-01 00:00:00

abstract：:A gene fusion between the Saccharomyces cerevisiae actin gene promoter and the cDNA of the Fusarium solani f. sp. pisi pelA gene has been constructed. This expression cassette has been introduced into the industrial wine yeast strain T73. The resulting recombinant strain is able to secrete active PELA enzyme into the ...

journal_title：FEMS microbiology letters

authors： González-Candelas L,Cortell A,Ramon D

更新日期：1995-03-01 00:00:00

abstract：:Pseudomonas aeruginosa PA96 is a clinical isolate from Guangzhou, China, that is multiresistant to antibiotics. We previously described the 500-kb IncP-2 plasmid, pOZ176 that encodes many resistance genes including the IMP-9 carbapenemase. Whole-genome sequencing of PA96 enabled characterization of its genomic islands...

journal_title：FEMS microbiology letters

authors： Déraspe M,Alexander DC,Xiong J,Ma JH,Low DE,Jamieson FB,Roy PH

更新日期：2014-07-01 00:00:00

abstract：:The major heat shock proteins from Thiobacillus ferrooxidans were identified as DnaK and GroEL equivalents by Western blotting and analysis of the N-terminal amino acid sequence of spots isolated from dried 2-D polyacrylamide electrophoresis gels. The T. ferrooxidans chaperonins showed 70% and 80% identity with the Es...

journal_title：FEMS microbiology letters

authors： Varela P,Jerez CA

更新日期：1992-11-01 00:00:00

abstract：:Yeast two-hybrid and Far Western analyses were used to detect interactions between Bacillus subtilis spores' nutrient germinant receptor proteins and proteins encoded by the spoVA operon, all of which are involved in spore germination and located in the spores' inner membrane. These analyses indicated that two subunit...

journal_title：FEMS microbiology letters

authors： Vepachedu VR,Setlow P

更新日期：2007-09-01 00:00:00

abstract：:The aim of this study was the production of the homopolyester poly(4-hydroxybutyric acid) (poly(4HB)) with recombinant strains of Escherichia coli. Wild-type strains and other widely used non-recombinant strains of E. coli are not able to produce polyhydroxyalkanoic acids (PHA) as storage compounds and cannot utilize ...

journal_title：FEMS microbiology letters

authors： Hein S,Söhling B,Gottschalk G,Steinbüchel A

更新日期：1997-08-15 00:00:00

abstract：:Organic acids such as monocarboxylic acids, dicarboxylic acids or even more complex molecules such as sugar acids, have displayed great applicability in the industry as these compounds are used as platform chemicals for polymer, food, agricultural and pharmaceutical sectors. Chemical synthesis of these compounds from ...

journal_title：FEMS microbiology letters

authors： Soares-Silva I,Ribas D,Sousa-Silva M,Azevedo-Silva J,Rendulić T,Casal M

更新日期：2020-08-01 00:00:00

abstract：:The gacA gene of the biocontrol strain Pseudomonas fluorescens CHA0 codes for a response regulator which, together with the sensor kinase GacS (=LemA), is required for the production of exoenzymes and secondary metabolites involved in biocontrol, including hydrogen cyanide (HCN). A gacA multicopy suppressor was isolat...

journal_title：FEMS microbiology letters

authors： Blumer C,Haas D

更新日期：2000-06-01 00:00:00

abstract：:Hydrophobin proteins originate from filamentous fungi, which are able to self-assemble at water-air interfaces. Hydrophobins have multiple functions in fungal growth and development. In this study, the function of the Trhfb3 gene encoding a class II hydrophobin was characterized in Trichoderma reesei. The null mutant ...

journal_title：FEMS microbiology letters

authors： He R,Li C,Feng J,Zhang D

更新日期：2017-04-01 00:00:00

abstract：:Mycobacterium smegmatis was used to study the relationship between DNA repair processes involving RecA and nonhomologous end joining (NHEJ). The effect of gene deletions in recA and/or in two genes involved in NHEJ (ku and ligD) was tested on the ability of bacteria to join breaks in plasmids transformed into them and...

journal_title：FEMS microbiology letters

authors： Korycka-Machala M,Brzostek A,Rozalska S,Rumijowska-Galewicz A,Dziedzic R,Bowater R,Dziadek J

更新日期：2006-05-01 00:00:00

abstract：:The discovery that all hyperthermophiles that have been evaluated have the capacity to reduce Fe(III) has raised the question of whether mechanisms for dissimilatory Fe(III) reduction have been conserved throughout microbial evolution. Many studies have suggested that c-type cytochromes are integral components in elec...

journal_title：FEMS microbiology letters

authors： Childers SE,Lovley DR

更新日期：2001-02-20 00:00:00

abstract：:It is known that certain yeast strains, so called 'killers', can produce and excrete proteinaceous toxins that can induce death of other sensitive strains. We obtained a stable fungicidal factor (SKF) through concentration and stabilization of the excretion product of certain killer strains of Saccharomyces cerevisiae...

journal_title：FEMS microbiology letters

authors： Bracesco N,Salvo VA,Carrau FM,Nunes E

更新日期：2006-03-01 00:00:00

abstract：:The isolate NJ-101 obtained from agricultural soil was characterized and presumptively identified as Pseudomonas sp. The isolate exhibited efficient degradation of the insecticide carbofuran with a rate constant of 0.035 day(-1), following first-order rate kinetics. The ability of performing multifarious biological ac...

journal_title：FEMS microbiology letters

authors： Bano N,Musarrat J

更新日期：2004-02-09 00:00:00

abstract：:In this study, we show that berberine chloride (BBR) has antimicrobial activities against all 43 tested strains of Staphylococcus aureus, an important human and animal pathogen. However, the response mechanisms of S. aureus to BBR are still poorly understood. Affymetrix GeneChips were used to determine the global tran...

journal_title：FEMS microbiology letters

authors： Wang D,Yu L,Xiang H,Fan J,He L,Guo N,Feng H,Deng X

更新日期：2008-02-01 00:00:00

abstract：:The detection of ancient microbial DNA offers a new approach for the study of infectious diseases, their occurrence, frequency and host-pathogen interaction in historic times and populations. Moreover, data obtained from skeletal and mummified tissue may represent an important completion of contemporary phylogenetic a...

journal_title：FEMS microbiology letters

authors： Zink AR,Reischl U,Wolf H,Nerlich AG

更新日期：2002-08-06 00:00:00

abstract：:A composite transposon is a mobile genetic element consisting of two insertion sequences (ISs) flanking a segment of cargo DNA often containing antibiotic resistance (AR) genes. Composite transposons can move as a discreet unit. There have been recently several reports on a novel mechanism of movement of an IS26-based...

journal_title：FEMS microbiology letters

authors： Tansirichaiya S,Mullany P,Roberts AP

更新日期：2016-09-01 00:00:00

abstract：:Tolerance of the foodborne pathogen Listeria monocytogenes to sublethal concentrations of disinfectants has been frequently reported. Particularly, quaternary ammonium compounds (QACs) such as benzalkonium chloride (BC) are often used in disinfectants and also as antiseptics in food industry and hospitals. Recently, w...

journal_title：FEMS microbiology letters

authors： Müller A,Rychli K,Zaiser A,Wieser C,Wagner M,Schmitz-Esser S

更新日期：2014-12-01 00:00:00

abstract：:The emergence of antibiotic resistance has necessitated new therapeutic approaches for combating persistent bacterial infection. An alternative approach is regulation of bacterial virulence instead of growth suppression, which can readily lead to drug resistance. The virulence of the opportunistic human pathogen Pseud...

journal_title：FEMS microbiology letters

authors： Lee JH,Kim YG,Cho MH,Kim JA,Lee J

更新日期：2012-04-01 00:00:00

abstract：:We used error-prone PCR to generate mutations in a subtilisin protease-encoding gene, and screened for recombinants that expressed temperature-sensitive (TS) variants. From the dozens of mutations that we detected in the recombinant genes we found that those mutations that affected aspartate-75 had the most profound e...

journal_title：FEMS microbiology letters

authors： Thompson VC,McGuire BE,Frier MS,Legg MSG,Dyer TW,Gudavicius G,Potter S,Nano FE

更新日期：2020-10-16 00:00:00

abstract：:5-Carboxymethyl-2-hydroxymuconic semialdehyde (CHMS) dehydrogenase from Escherichia coli C and Klebsiella pneumoniae M5a1 have been purified and some of their properties studied. The apparent Km values for NAD and CHMS were 11.7 +/- 1.5 microM and 5.2 +/- 1.9 microM, respectively, for the K. pneumoniae enzyme, and 19....

journal_title：FEMS microbiology letters

authors： Fawcett T,Garrido-Pertierra A,Cooper RA

更新日期：1989-02-01 00:00:00

abstract：:We have devised a reliable procedure for the separation of three beta-lactamases of isoelectric focusing points (pI), 5.4, 6.5, and 7.9 by Fast Protein Liquid Chromatography (FPLC System). All of these enzymes were transferable and originated from a ceftazidime and cefotaxime resistant Klebsiella pneumoniae isolated i...

journal_title：FEMS microbiology letters

authors： Payne DJ,Hood J,Marriott MS,Amyes SG

更新日期：1990-06-01 00:00:00

abstract：:The genus Xanthomonas is composed of several species that cause severe crop losses around the world. In Latin America, one of the most relevant species is Xanthomonas campestris pv. campestris, which is responsible for black rot in cruciferous plants. This pathogen causes yield losses in several cultures, including ca...

journal_title：FEMS microbiology letters

authors： Andrade AE,Silva LP,Pereira JL,Noronha EF,Reis FB Jr,Bloch C Jr,dos Santos MF,Domont GB,Franco OL,Mehta A

更新日期：2008-04-01 00:00:00

abstract：:In order to obtain functional expression of PHA synthase gene phaC2 from Pseudomonas aeruginosa in Escherichia coli, the coding region of phaC2 was subcloned, including the ribosomal binding site, into pBluescript SK- collinear to the lac promoter. This plasmid pBHR71-C2 enabled functional expression of phaC2 in E. co...

journal_title：FEMS microbiology letters

authors： Qi Q,Rehm BH,Steinbüchel A

更新日期：1997-12-01 00:00:00

abstract：:We have studied the intraperoxisomal location of catalase in peroxisomes of methanol-grown Hansenula polymorpha by (immuno)cytochemical means. In completely crystalline peroxisomes, in which the crystalline matrix is composed of octameric alcohol oxidase (AO) molecules, most of the catalase protein is located in a nar...

journal_title：FEMS microbiology letters

authors： Keizer I,Roggenkamp R,Harder W,Veenhuis M

更新日期：1992-05-15 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：:A 1.5-kb XbaI-SacII fragment containing the upstream region of the Trichoderma reesei cellobiohydrolase I gene (cbh1) has been sequenced. The 1.5-kb fragment contains eight 6-bp sites having an identical or similar sequence to the consensus sequence for binding a catabolite repressor, Aspergillus nidulans CreA. Result...

journal_title：FEMS microbiology letters

authors： Takashima S,Iikura H,Nakamura A,Masaki H,Uozumi T

更新日期：1996-12-15 00:00:00

abstract：:Lactobacillus johnsonii La1 (La1) is a probiotic strain capable of stimulating the immune system of the host and interfering with gastrointestinal pathogens. This study evaluates how the ingestion of different amounts of La1 influences the main bacterial populations of the fecal microbiota. Eight asymptomatic voluntee...

journal_title：FEMS microbiology letters

authors： Garrido D,Suau A,Pochart P,Cruchet S,Gotteland M

更新日期：2005-07-15 00:00:00

abstract：:FNR is an iron-binding transcriptional regulator of Escherichia coli which controls the expression of target genes in response to anaerobiosis. The mechanism used by FNR to sense and respond to anaerobiosis is unknown but it is thought to involve iron. In vitro transcription analyses have shown that iron-deficient FNR...

journal_title：FEMS microbiology letters

authors： Green J,Guest JR

更新日期：1993-10-15 00:00:00