首页> 外文期刊>Biochemical Genetics >A single amino acid substitution in one of the lipases of Aspergillus nidulans confers resistance to the antimycotic drug undecanoic acid.
【24h】

A single amino acid substitution in one of the lipases of Aspergillus nidulans confers resistance to the antimycotic drug undecanoic acid.

机译:曲霉芽孢杆菌的脂肪酶之一的单个氨基酸取代赋予抗催化药过甲酸的抗性。

获取原文
获取原文并翻译 | 示例
           

摘要

A plausible approach to evaluate the inhibitory action of antifungals is through the investigation of the fungal resistance to these drugs. We describe here the molecular cloning and initial characterization of the A. nidulans lipA gene, where mutation (lipA1) conferred resistance to undecanoic acid, the most fungitoxic fatty acid in the C(7:0)-C(18:0) series. The lipA gene codes for a putative lipase with the sequence consensus GVSIS and WIFGGG as the catalytic signature. Comparison of the wild-type and LIP1 mutant strain nucleotide sequences showed a G --> A change in lipA1 allele, which results in a Glu(214) --> Lys substitution in LipA protein. This ionic charge change in a conserved LipA region, next to its catalytic site, may have altered the catalytic properties of this enzyme resulting in resistance to undecanoic acid.
机译:一种评价抗真菌抑制作用的合理方法是通过调查对这些药物的真菌抗性。 在此描述A. nidulans Lipa基因的分子克隆和初始表征,其中突变(LiPA1)赋予未甲酸的耐药性,C(7:0)-C(18:0)系列中最稳定的毒性脂肪酸。 具有序列共识GVSIS和WIFGGG作为催化特征的脂肪脂肪酶。 野生型和唇缘突变菌株核苷酸序列的比较显示了LIPA1等位基因的G - >变化,这导致LiPA蛋白中的Glu(214) - > Lys取代。 在其催化位点旁边的保守脂肪区域中的这种离子电荷变化可能改变了该酶的催化性质,从而导致对未甲酸的耐药性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号