Hybrid structural model of the complete human ESCRT-0 complex.

Hybrid structural model of the complete human ESCRT-0 complex.
复制标题

DOI:
10.1016/j.str.2009.01.012
复制
发表时间:
2009-03-11
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Hurley JH
Hurley JH
中科院分区:
其他
文献类型:
--
作者:
Ren X;Kloer DP;Kim YC;Ghirlando R;Saidi LF;Hummer G;Hurley JH

文献摘要

参考文献

被引文献

相似文献

人类的HRs和STAM蛋白组成ESCRT-0复合体,它将泛素化的细胞表面受体分类到溶酶体进行降解。在这里,我们报告了一个完整的ESCRT-0络合物的模型,该模型基于HRS-STAM核心络合物的晶体结构、先前求解的磁区结构、流体动力学测量和蒙特卡罗模拟。在昆虫细胞中表达的ESCRT-0的流体动力学半径为RH=7.9 nm,是1:1的异源二聚体。ESCRT-0核心复合体的2.3ä晶体结构显示了两个结构域互换的GAT结构域和一个反平行的双链螺旋,类似于酵母ESCRT-0。ESCRT-0代表了一类结合了结构化和非结构化元素的生物分子组件,具有动态和开放的构象,以确保目标识别的多功能性。受ESCRT-0实验RH值约束的粗粒度蒙特卡罗模拟揭示了适合于不同功能的动态构象集合。
The human Hrs and STAM proteins comprise the ESCRT-0 complex, which sorts ubiquitinated cell surface receptors to lysosomes for degradation. Here we report a model for the complete ESCRT-0 complex based on the crystal structure of the Hrs-STAM core complex, previously solved domain structures, hydrodynamic measurements, and Monte Carlo simulations. ESCRT-0 expressed in insect cells has a hydrodynamic radius of RH = 7.9 nm and is a 1:1 heterodimer. The 2.3 Å crystal structure of the ESCRT-0 core complex reveals two domain-swapped GAT domains and an antiparallel two-stranded coiled-coil, similar to yeast ESCRT-0. ESCRT-0 typifies a class of biomolecular assemblies that combine structured and unstructured elements, and have dynamic and open conformations to ensure versatility in target recognition. Coarse-grained Monte Carlo simulations constrained by experimental RH values for ESCRT-0 reveal a dynamic ensemble of conformations well suited for diverse functions.
DOI: 10.1016/j.bbrc.2003.08.078
发表时间: 2003-10-03
影响因子: 3.1
作者:
Kanazawa, C;Morita, E;Sugamura, K
通讯作者: Sugamura, K
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.1074/jbc.m210843200
发表时间: 2003-04-04
影响因子: 4.8
作者:
Bache, KG;Raiborg, C;Stenmark, H
通讯作者: Stenmark, H
VPS27-HSE1和ESCRT-I复合物配合,以提高在内体处分类泛素化蛋白的效率。
DOI: 10.1083/jcb.200305007
发表时间: 2003-10-27
影响因子: 7.8
作者:
Bilodeau, PS;Winistorfer, SC;Kearney, WR;Robertson, AD;Piper, RC
通讯作者: Piper, RC
DOI: 10.1038/ncb1354
发表时间: 2006-02-01
影响因子: 21.3
作者:
Hoeller, D;Crosetto, N;Dikic, I
通讯作者: Dikic, I