The molecular basis for selective assembly of the UBAP1-containing endosome-specific ESCRT-I complex.
The molecular basis for selective assembly of the UBAP1-containing endosome-specific ESCRT-I complex.
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DOI:
10.1242/jcs.140673
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发表时间:
2014-02-01
影响因子:
4
通讯作者:
Woodman P
中科院分区:
文献类型:
--
作者:
Wunderley L;Brownhill K;Stefani F;Tabernero L;Woodman P
ESCRT-I is essential for the multivesicular body (MVB) sorting of ubiquitylated cargo such as epidermal growth factor receptor, as well as for several cellular functions, such as cell division and retroviral budding. ESCRT-I has four subunits; TSG101, VPS28, VPS37 and MVB12. There are several members of VPS37 and MVB12 families in mammalian cells, and their differential incorporation into ESCRT-I could provide function-specific variants of the complex. However, it remains unclear whether these different forms of VPS37 and MVB12 combine randomly or generate selective pairings within ESCRT-I, and what the mechanistic basis for such pairing would be. Here, we show that the incorporation of two MVB12 members, UBAP1 and MVB12A, into ESCRT-I is highly selective with respect to their VPS37 partners. We map the region mediating selective assembly of UBAP1–VPS37A to the core ESCRT-I-binding domain of VPS37A. In contrast, selective integration of UBAP1 requires both the minimal ESCRT-I-binding region and a neighbouring predicted helix. The biochemical specificity in ESCRT-I assembly is matched by functional specialisation as siRNA-mediated depletion of UBAP1, but not MVB12A and MVB12B, disrupts ubiquitin-dependent sorting at the MVB.
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DOI:
10.1111/j.1600-0854.2011.01305.x
发表时间:
2012-02
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
作者:
Eden ER;Huang F;Sorkin A;Futter CE
通讯作者:
Futter CE
影响因子:
64.5
作者:
Frost A;Elgort MG;Brandman O;Ives C;Collins SR;Miller-Vedam L;Weibezahn J;Hein MY;Poser I;Mann M;Hyman AA;Weissman JS
通讯作者:
Weissman JS
DOI:
10.1083/jcb.201110031
发表时间:
2012-04-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Dores MR;Chen B;Lin H;Soh UJ;Paing MM;Montagne WA;Meerloo T;Trejo J
通讯作者:
Trejo J
DOI:
10.1093/bioinformatics/btq235
发表时间:
2010-06-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
de Souza RF;Aravind L
通讯作者:
Aravind L
影响因子:
12.4
作者:
Hurley JH;Stenmark H
通讯作者:
Stenmark H