首页> 外文期刊>Journal of Molecular Biology >The crystal structure of the hinge domain of the Escherichia coli structural maintenance of chromosomes protein MukB.
【24h】

The crystal structure of the hinge domain of the Escherichia coli structural maintenance of chromosomes protein MukB.

机译:大肠杆菌铰链结构域的晶体结构,维持染色体蛋白MukB的结构。

获取原文
获取原文并翻译 | 示例
           

摘要

MukB, a divergent structural maintenance of chromosomes (SMC) protein, is important for chromosomal segregation and condensation in gamma-proteobacteria. MukB and canonical SMC proteins share a characteristic five-domain structure. Globular N- and C-terminal domains interact to form an ATP-binding cassette-like ATPase or "head" domain, which is connected to a smaller dimerization or "hinge" domain by a long, antiparallel coiled coil. In addition to mediating dimerization, this hinge region has been implicated in both conformational flexibility and dynamic protein-DNA interactions. We report here the first crystallographic model of the MukB hinge domain. This model also contains approximately 20% of the coiled-coil domain, including an unusual coiled-coil deviation. These results will facilitate studies to clarify the roles of both the hinge and the coiled-coil domains in MukB function.
机译:MukB是染色体(SMC)蛋白的一种结构差异保持性,对于γ-蛋白细菌中的染色体分离和浓缩非常重要。 MukB和规范SMC蛋白共享特征性的五结构域结构。球状的N和C末端结构域相互作用形成ATP结合盒式ATPase或“头部”结构域,该结构域通过长且反平行的卷曲线圈与较小的二聚化或“铰链”结构域相连。除了介导二聚化以外,该铰链区还涉及构象柔性和动态蛋白质-DNA相互作用。我们在这里报告MukB铰链域的第一个晶体学模型。该模型还包含大约20%的盘绕线圈域,包括异常的盘绕线圈偏差。这些结果将有助于研究,以阐明铰链和螺旋线圈​​域在MukB功能中的作用。

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