Regulation of beta-glucosidase biosynthesis in Aspergillus nidulans.

abstract：:Many antibiotic-producing actinomycetes possess at least one ABC (ATP-binding cassette) transporter which forms part of the antibiotic biosynthetic pathway and in most cases confers resistance to the drug in an heterologous host. Three types of antibiotic ABC transporters have been so far described in producer organis...

journal_title：FEMS microbiology letters

authors： Méndez C,Salas JA

更新日期：1998-01-01 00:00:00

abstract：:The c-type cytochrome (OmcB) and the multicopper protein (OmpB) required for Fe(III) oxide reduction by Geobacter sulfurreducens were predicted previously to be outer membrane proteins, but it is not clear whether they are positioned in a manner that permits the interaction with Fe(III). Treatment of whole cells with ...

journal_title：FEMS microbiology letters

authors： Qian X,Reguera G,Mester T,Lovley DR

更新日期：2007-12-01 00:00:00

abstract：:Tachyzoites of Toxoplasma gondii multiply within the parasitophorous vacuole (PV) until the lysis of the host cell. This study was undertaken to evaluate the effect of hydroxyurea (a specific drug that arrests cell division at G1/S phase) on the multiplication of T. gondii tachyzoites in infected Vero cells. Infected ...

journal_title：FEMS microbiology letters

authors： de Melo EJ,Mayerhoffer RO,de Souza W

更新日期：2000-04-01 00:00:00

abstract：:Proteus mirabilis strain MAG1, a clinical isolate that is resistant to broad-spectrum penicillins and co-amoxiclav, produces inhibitor-resistant TEM (IRT)-21, a novel mutant of TEM beta-lactamase. This enzyme has a pI of 5.2 and is derived from the bla(TEM-1a) gene ancestor. It contains two major amino acid substituti...

journal_title：FEMS microbiology letters

authors： Mammeri H,Gilly L,Laurans G,Vedel G,Eb F,Paul G

更新日期：2001-12-18 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：:The lin genes encode the gamma-hexachlorocyclohexane (gamma-HCH or lindane) catabolic pathway in lindane-degrading strains. The location and stability of these genes have been explored in the lindane-degrading Sphingobium francense strain Sp+, and in two non-lindane-degrading mutants (Sp1- and Sp2-). The lin genes, li...

journal_title：FEMS microbiology letters

authors： Cérémonie H,Boubakri H,Mavingui P,Simonet P,Vogel TM

更新日期：2006-04-01 00:00:00

abstract：:Tn4560 (8.6 kb) was derived from Tn4556, a Tn3-like element from Streptomyces fradiae. It contains a viomycin resistance gene that has not been used previously for selection in mycobacteria. Tn4560, cloned in a Streptomyces plasmid, was introduced by electroporation into Mycobacterium smegmatis mc(2)155. Tn4560 transp...

journal_title：FEMS microbiology letters

authors： Bhatt A,Stewart GR,Kieser T

更新日期：2002-01-10 00:00:00

abstract：:Bacillus subtilis cells must have cytochromes for growth and can synthesize cytochromes of a-, b-, c-, d-, and o-types. After a long lag, our knowledge of the structure, genetics and specific role for these cytochromes is now growing exponentially as the result of recent research. This progress is reviewed here and in...

journal_title：FEMS microbiology letters

authors： von Wachenfeldt C,Hederstedt L

更新日期：1992-12-15 00:00:00

abstract：:A total of 129 sRNA candidates were identified in Brucella abortus 2308 in our previous work, and one candidate with potential to regulate expression of hemH gene was further analyzed in this study. We found that the novel sRNA can inhibit the expression of hemH and called it BsrH (Brucella sRNA regulating HemH). The ...

journal_title：FEMS microbiology letters

authors： Peng X,Dong H,Wu Q

更新日期：2015-01-01 00:00:00

abstract：:The small heat shock protein (smHsp) Lo18 from lactic acid bacteria Oenococcus oeni reduces in vitro thermal aggregation of proteins and modulates the membrane fluidity of native liposomes. An absence of information relating to the way in which the smHsp demonstrates a stabilizing effect for both proteins and membrane...

journal_title：FEMS microbiology letters

authors： Weidmann S,Rieu A,Rega M,Coucheney F,Guzzo J

更新日期：2010-08-01 00:00:00

abstract：:Levan fructotransferase (LFTase) from Arthrobacter ureafaciens K2032 was expressed with N-terminal fusion of a LacZ-derived secretion motif (TMITNSSSVP) using the lac promoter system in recombinant Escherichia coli JM109 [pUDF-A81]. In flask cultures, recombinant enzyme activity was detected in culture media, and sequ...

journal_title：FEMS microbiology letters

authors： Lee J,Saraswat V,Koh I,Song KB,Park YH,Rhee SK

更新日期：2001-02-20 00:00:00

abstract：:We constructed mutant genes of Caldococcus noboribetus isocitrate dehydrogenase containing ancestral amino acid residues that were inferred using the maximal likelihood method and a composite phylogenetic tree of isocitrate dehydrogenase and 3-isopropylmalate dehydrogenase. The mutant genes were expressed in Escherich...

journal_title：FEMS microbiology letters

authors： Iwabata H,Watanabe K,Ohkuri T,Yokobori S,Yamagishi A

更新日期：2005-02-15 00:00:00

abstract：:Growth of strains of Salmonella enteritidis and Salmonella pullorum on Hektoen agar has been reported to influence the expression of long-chain lipopolysaccharide and motility respectively. In this study we used a panel of strains of S. enteritidis and S. pullorum to investigate these phenomena. Culture on Hektoen aga...

journal_title：FEMS microbiology letters

authors： Chart H,Rowe B

更新日期：1998-06-15 00:00:00

abstract：:The purpose of this study was to generate highly specific serological reagents for the quantitative identification of Actinomyces naeslundii in clinical samples, in particular dental plaque. Balb/c mice were immunized with pasteurized human A. naeslundii strains representing different genospecies and serotypes. Ten hy...

journal_title：FEMS microbiology letters

authors： Thurnheer T,Guggenheim B,Gmür R

更新日期：1997-05-15 00:00:00

abstract：:Dimethylphthalate (DMP), one of the phthalate esters, is used in the manufacture of plasticizers, insect repellents, and synthetic fibers, and contributes to environmental pollution. In the present study, we report a novel bacterium belonging to the Bacillus sp., which has the ability to utilize DMP as the sole source...

journal_title：FEMS microbiology letters

authors： Niazi JH,Prasad DT,Karegoudar TB

更新日期：2001-03-15 00:00:00

abstract：:Cells of the pel1 mutant of Saccharomyces cerevisiae were found to contain an extremely low content of cardiolipin, a decreased level of phosphatidylcholine and an increased level of phosphatidylinositol. Disruption of the PEL1 gene in cells containing a null mutation in the CHO1 gene was lethal. Despite its putative ...

journal_title：FEMS microbiology letters

authors： Janitor M,Obernauerová M,Kohlwein SD,Subík J

更新日期：1996-06-15 00:00:00

abstract：:The genes for fructosyltransferase (ftf) and glucan-binding protein (gbp) of Streptococcus mutans strain Ingbritt have been cloned in E. coli using bacteriophage and plasmid vectors. A single ftf gene appears to be responsible for the appearance of several FTF of different electrophoretic mobilities. Despite the fact ...

journal_title：FEMS microbiology letters

authors： Aduse-Opoku J,Gilpin ML,Russell RR

更新日期：1989-06-01 00:00:00

abstract：:The synthesis of inducible biodegradative threonine dehydratase of Escherichia coli increased several-fold in the presence of the DNA gyrase inhibitors, nalidixic acid and coumermycin. Temperature-sensitive gyrB mutants expressed higher levels of dehydratase as compared to an isogenic gyrB+ strain. Immunoblotting expe...

journal_title：FEMS microbiology letters

authors： Sumantran VN,Tranguch AJ,Datta P

更新日期：1989-11-01 00:00:00

abstract：:A protease (protease A) was successfully purified from the extracellular proteins of Vibrio parahaemolyticus no. 93, a clinical strain carrying neither tdh nor trh genes, using phenyl-Sepharose CL-4B hydrophobic interaction chromatography. The molecular mass of protease A was 43 kDa using gel filtration, which was in ...

journal_title：FEMS microbiology letters

authors： Lee CY,Cheng MF,Yu MS,Pan MJ

更新日期：2002-03-19 00:00:00

abstract：:Morphologically similar species such as Chinese black truffles and Tuber melanosporum were typed by restriction length polymorphism of internal transcribed spacers. This analysis together with sequence comparison revealed the presence of high genetic variability among fruit bodies collected in China. Selection of prim...

journal_title：FEMS microbiology letters

authors： Paolocci F,Rubini A,Granetti B,Arcioni S

更新日期：1997-08-15 00:00:00

abstract：:The study compared images of mature Streptococcus mutans biofilms captured at increasing magnification to determine which microscopy method is most acceptable for imaging the biofilm topography and the extracellular polymeric substance (EPS). In vitro S. mutans biofilms were imaged using (1) scanning electron microsco...

journal_title：FEMS microbiology letters

authors： Weber K,Delben J,Bromage TG,Duarte S

更新日期：2014-01-01 00:00:00

abstract：:Transfer of DNA by conjugation has been the method generally used for genetic manipulation of Edwardsiella ictaluri because, previously, attempts to transform E. ictaluri by the uptake of naked DNA have apparently failed. We report here the successful transformation of seven strains of E. ictaluri using electroporatio...

journal_title：FEMS microbiology letters

authors： Russo R,Panangala VS,Wood RR,Klesius PH

更新日期：2009-09-01 00:00:00

abstract：:Comparisons of growth and surface colonisation of Enterococcus faecium L-forms and their cell-walled forms were undertaken to produce information about their ability to form sessile cells. The growth of L-forms in liquid culture was slower than that of the parent. This was reflected in their longer lag phase and slowe...

journal_title：FEMS microbiology letters

authors： Jass J,Phillips LE,Allan EJ,Costerton JW,Lappin-Scott HM

更新日期：1994-01-15 00:00:00

abstract：:How proteins reach their native conformation and location has been a major question of biology during the last 50 years. To counterbalance protein misfolding and the accumulation of aggregation products, a complex network of chaperones and proteases takes care of protein quality control in the cell. Such a chaperone n...

journal_title：FEMS microbiology letters

authors： Mas G,Hiller S

更新日期：2018-07-01 00:00:00

abstract：:Pantoea ananatis accumulates gluconate during aerobic growth in the presence of glucose. Computer analysis of the P. ananatis SC17(0) sequenced genome revealed an ORF encoding a homologue (named gcd) of the mGDH (EC 1.1.99.17) apoenzyme from Escherichia coli and a putative pyrroloquinoline quinone (PQQ) biosynthetic o...

journal_title：FEMS microbiology letters

authors： Andreeva IG,Golubeva LI,Kuvaeva TM,Gak ER,Katashkina JI,Mashko SV

更新日期：2011-05-01 00:00:00

abstract：:A synthetic version of the ligA gene encoding the NAD-dependent DNA ligase from the Arctic bacterium Pseudoalteromonas haloplanktis was substituted for its homolog in the chromosome of Mycobacterium smegmatis. The resulting recombinant strain grew identically to the parent strain at permissive temperatures but failed ...

journal_title：FEMS microbiology letters

authors： Pinto CT,Nano FE

更新日期：2015-09-01 00:00:00

abstract：:Symbioses between phototrophs and heterotrophs (a.k.a 'photosymbioses') are extremely common, and range from loose and temporary associations to obligate and highly specialized forms. In the history of life, the most transformative was the 'primary endosymbiosis,' wherein a cyanobacterium was engulfed by a eukaryote a...

journal_title：FEMS microbiology letters

authors： Gavelis GS,Gile GH

更新日期：2018-10-01 00:00:00

abstract：:We have analyzed 81 isolates of Mycoplasma agalactiae from four different regions of Italy between 1990 and 1995 in order to identify antigenic differences through SDS-PAGE and Western blotting and chromosomal DNA restriction endonuclease cleavage pattern differences. Antigenic variability in M. agalactiae isolates wa...

journal_title：FEMS microbiology letters

authors： Tola S,Idini G,Manunta D,Casciano I,Rocchigiani AM,Angioi A,Leori G

更新日期：1996-10-01 00:00:00

abstract：:Hemerythrins are oxygen-binding proteins found in the body fluids and tissues of certain invertebrates. Oxygen is bound at a nonheme iron centre consisting of two oxo-bridged iron atoms bound to a characteristic set of conserved histidine: aspartate and glutamate residues with the motifs H-HxxxE-HxxxH-HxxxxD. It has r...

journal_title：FEMS microbiology letters

authors： French CE,Bell JM,Ward FB

更新日期：2008-02-01 00:00:00

abstract：:A broad range of different chemical and pharmaceutical compounds have been produced in microbial cell factories. To compete with traditional crude oil based production processes, the use of complex alternative raw materials such as lignocellulosic biomass, waste streams and utilization of CO2 in gas fermentations has ...

journal_title：FEMS microbiology letters

authors： Novak K,Pflügl S

更新日期：2018-10-01 00:00:00