Hybrid structural model of the complete human ESCRT-0 complex.
Hybrid structural model of the complete human ESCRT-0 complex.
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DOI:
10.1016/j.str.2009.01.012
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发表时间:
2009-03-11
期刊:
影响因子:
--
通讯作者:
Hurley JH
中科院分区:
文献类型:
--
作者:
Ren X;Kloer DP;Kim YC;Ghirlando R;Saidi LF;Hummer G;Hurley JH
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.
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DOI:
10.1016/j.bbrc.2003.08.078
发表时间:
2003-10-03
影响因子:
3.1
作者:
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通讯作者:
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DOI:
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影响因子:
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影响因子:
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作者:
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