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Rice Na+/H+- antiporter Nhx1 partially complements the alkali-metal-cation sensitivity of yeast strains lacking three sodium transporters

  1. 1.
    0103840 - FGU-C 20040136 RIV CZ eng J - Journal Article
    Kinclová-Zimmermannová, Olga - Flegelová, Hana - Sychrová, Hana
    Rice Na+/H+- antiporter Nhx1 partially complements the alkali-metal-cation sensitivity of yeast strains lacking three sodium transporters.
    [Na/H antiporter Nhx1 z rýže částečně komplementuje citlivost mutantního kmene kvasinek postrádajícího tři transportéry sodíku vůči kationtům alkalických kovů.]
    Folia Microbiologica. Roč. 49, č. 5 (2004), s. 519-525. ISSN 0015-5632. E-ISSN 1874-9356
    R&D Projects: GA ČR GA204/02/1240; GA AV ČR IAA5011407
    Grant - others:EU(XE) QLK3-CT-2001-00533
    Institutional research plan: CEZ:AV0Z5011922
    Keywords : alkali metal cations * Na/H antiporter * yeast
    Subject RIV: EB - Genetics ; Molecular Biology
    Impact factor: 1.034, year: 2004

    A triple mutant strain of Saccharomyces cerevisiae lacking its own Na+-ATPases and Na+/H+ antiporters (ena1-4 nha1 nhx1) was used for the expression of the O. sativa NHX1 gene encoding a putative vacuolar Na+/H+ exchanger. Upon expression in yeast cells, the OsNhx1p is not a transport system specific only for sodium cations but it has a broad substrate specificity for at least four alkali metal cations (Na+, Li+, K+ and Rb+) and is able to substitute for the endogenous yeast ScNhx1 antiporter

    Trojitý mutant Saccharomyces cerevisiae postrádající Na+-ATPasu a Na+/H+ antiportery (ena1-4 nha1 nhx1) byl použit pro expresi genu NHX1 z O. sativa kódujícího vakuolární Na+/H+ transportér. Při expresi v buňkách kvasinek se OsNhx1p choval jako systém se širokou substrátovou specifitou pro nejméně 4 kationty (Na+, Li+, K+ a Rb+) a byl schopen nahradit funkci vlastního ScNhx1p

    Permanent Link: http://hdl.handle.net/11104/0011146

     
     

Number of the records: 1  

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