...
首页> 外文期刊>Molecular cell >The DnaK chaperone System Facilitates 30S Ribosomal Subunit Assembly
【24h】

The DnaK chaperone System Facilitates 30S Ribosomal Subunit Assembly

机译:DnaK分子伴侣系统促进30S核糖体亚基组装

获取原文
获取原文并翻译 | 示例
           

摘要

Functional Escherichia coli 30S ribosomal subunits can be reconstituted in vitro. However, slow kinetics and sharp temperature dependence suggest additional assembly factors are present in vivo. Extract activation of in vitro assembly results in association of DnaK/hsp70 chaperone components with pre-30S particles. Purified DnaK, its cochaperones DnaJ and GrpE, and ATP can facilitate reconstitution of functional 30S subunits under otherwise nonpermissive conditions. A link has been observed between DnaK, 30S subunit components, and ribosome biogenesis in vivo as well as in vitro. These studies reveal a novel role for the DnaK/hsp70 chaperone system, in addition to its well-documented role in protein folding, and suggest that 30S subunit assembly can be facilitated.
机译:可以在体外重建功能性大肠杆菌30S核糖体亚基。但是,动力学慢和温度依赖性强表明体内存在其他组装因子。体外组装的提取物活化导致DnaK / hsp70分子伴侣组分与30S前颗粒结合。纯化的DnaK,其伴侣蛋白DnaJ和GrpE和ATP可以在其他非许可条件下促进功能性30S亚基的重建。已在体内和体外观察到DnaK,30S亚基组分和核糖体生物发生之间的联系。这些研究揭示了DnaK / hsp70分子伴侣系统的新作用,以及其在蛋白质折叠中的广泛文献记载的作用,并表明可以促进30S亚基的组装。

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