首页> 外文期刊>Biochemistry >Role of Transmembrane Segment 5 and Extracellular Loop 3 in the Homodimerization of Human ABCC1
【24h】

Role of Transmembrane Segment 5 and Extracellular Loop 3 in the Homodimerization of Human ABCC1

机译:跨膜节段5和细胞外环3在人类ABCC1均质化中的作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Resistance to multiple anticancer agents is a major obstacle in the successful treatment of cancers.nOverexpression of someATP-binding cassette (ABC)membrane transporters such asABCC1 has been shownnto be a major contributor of multidrug resistance (MDR) in both laboratory cell line models and the clinicalnsetting. ABCC1 has been thought to function as a homodimer with a putative dimerization domain located innthe first 281 amino acid residues, includingMSD0 and L0 domains. In this study, we further mapped in detailnthe dimerization site and placed it in TM5 and ECL3 inMSD0 using co-expression and co-immunoprecipita-ntion of a series of deletion constructs. TM5 and ECL3 in one subunit appear to interact with TM5 and ECL3nin the opposing subunit in a sequence-independent manner, but their physical location together with thenhydrophobicity of TM5 and the length of ECL3 appears to be important contributors to the dimerizationnability of ABCC1.
机译:对多种抗癌药的耐药性是成功治疗癌症的主要障碍。在实验室细胞系模型和实验室模型中,已证明某些ATP结合盒(ABC)膜转运蛋白如ABCC1的过表达是多药耐药性(MDR)的主要贡献者。临床设定。人们认为ABCC1可以作为同源二聚体,其推定的二聚结构域位于前281个氨基酸残基中,包括MSD0和L0域。在这项研究中,我们进一步详细映射了二聚化位点,并使用一系列缺失构建体的共表达和共免疫沉淀将其置于MSD0中的TM5和ECL3中。一个亚基中的TM5和ECL3似乎以序列独立的方式与相对亚基中的TM5和ECL3n相互作用,但它们的物理位置以及TM5的疏水性和ECL3的长度似乎对ABCC1的二聚化能力起重要作用。

著录项

  • 来源
    《Biochemistry》 |2010年第51期|p.10854-10861|共8页
  • 作者单位

    Department of Pharmacology and Toxicology and IU Simon Cancer Center, Indiana University School of Medicine, Indianapolis,Indiana 46202, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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