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首页> 外文期刊>The Journal of toxicological sciences >Bfr1p is responsible for tributyltin resistance in Schizosaccharomyces pombe.
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Bfr1p is responsible for tributyltin resistance in Schizosaccharomyces pombe.

机译:Bfr1p负责粟酒裂殖酵母中对三丁基锡的抗性。

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摘要

ATP-binding cassette (ABC) transporter plays an important role for resistance against xenobiotics. There are eleven ABC transporter genes in the genome of fission yeast Schizosaccharomyces pombe. We examined the role of ABC transporter against the toxicity of tributyltin chloride (TBT), a widespread environmental pollutant, in cell growth. Among individual ABC transporter mutants, the growth of a mutant deficient in Bfr1p, a plasma membrane-embedded transporter, was extremely sensitive to TBT. The lethal TBT concentration inducing 50% of cell death (LC(50)) was 25 microM for the parent strain and 10.2 microM for the bfr1 mutant. Thus, Bfr1p was responsible for TBT resistance in S. pombe.
机译:ATP结合盒(ABC)转运蛋白在抵抗异种生物方面起着重要作用。裂殖酵母粟酒裂殖酵母基因组中有11个ABC转运蛋白基因。我们检查了ABC转运蛋白对三丁基氯化锡(TBT)(一种广泛的环境污染物)在细胞生长中的毒性的作用。在单个的ABC转运蛋白突变体中,缺乏Bfr1p(质膜嵌入的转运蛋白)的突变体的生长对TBT极为敏感。导致50%细胞死亡的致命TBT浓度(LC(50))对于亲本菌株为25 microM,对于bfr1突变体为10.2 microM。因此,Bfr1p导致了粟酒裂殖酵母中的TBT抗性。

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