Multi-modal adaptor-clathrin contacts drive coated vesicle assembly.
Multi-modal adaptor-clathrin contacts drive coated vesicle assembly.
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DOI:
10.15252/embj.2021108795
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发表时间:
2021-10-01
期刊:
影响因子:
--
通讯作者:
Smith CJ
中科院分区:
文献类型:
--
作者:
Smith SM;Larocque G;Wood KM;Morris KL;Roseman AM;Sessions RB;Royle SJ;Smith CJ
Clathrin‐coated pits are formed by the recognition of membrane and cargo by the AP2 complex and the subsequent recruitment of clathrin triskelia. A role for AP2 in coated‐pit assembly beyond initial clathrin recruitment has not been explored. Clathrin binds the β2 subunit of AP2, and several binding sites have been identified, but our structural knowledge of these interactions is incomplete and their functional importance during endocytosis is unclear. Here, we analysed the cryo‐EM structure of clathrin cages assembled in the presence of β2 hinge‐appendage (β2HA). We find that the β2‐appendage binds in at least two positions in the cage, demonstrating that multi‐modal binding is a fundamental property of clathrin‐AP2 interactions. In one position, β2‐appendage cross‐links two adjacent terminal domains from different triskelia. Functional analysis of β2HA‐clathrin interactions reveals that endocytosis requires two clathrin interaction sites: a clathrin‐box motif on the hinge and the “sandwich site” on the appendage. We propose that β2‐appendage binding to more than one triskelion is a key feature of the system and likely explains why assembly is driven by AP2. Single particle cryo‐EM analysis reveals how Adaptor Protein 2 promotes clathrin assembly during endocytosis by crosslinking clathrin triskelia at different locations in the cage.
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影响因子:
48
作者:
Kucukelbir, Alp;Sigworth, Fred J.;Tagare, Hemant D.
通讯作者:
Tagare, Hemant D.
DOI:
10.15252/embj.201797902
发表时间:
2018-04-13
期刊:
The EMBO journal
影响因子:
--
作者:
Burgess SG;Mukherjee M;Sabir S;Joseph N;Gutiérrez-Caballero C;Richards MW;Huguenin-Dezot N;Chin JW;Kennedy EJ;Pfuhl M;Royle SJ;Gergely F;Bayliss R
通讯作者:
Bayliss R
影响因子:
16.6
作者:
Bucher D;Frey F;Sochacki KA;Kummer S;Bergeest JP;Godinez WJ;Kräusslich HG;Rohr K;Taraska JW;Schwarz US;Boulant S
通讯作者:
Boulant S
影响因子:
48
作者:
Li, Xueming;Mooney, Paul;Zheng, Shawn;Booth, Christopher R.;Braunfeld, Michael B.;Gubbens, Sander;Agard, David A.;Cheng, Yifan
通讯作者:
Cheng, Yifan
DOI:
10.1016/j.ymeth.2016.03.007
发表时间:
2016-05-01
期刊:
Methods (San Diego, Calif.)
影响因子:
--
作者:
Joseph AP;Malhotra S;Burnley T;Wood C;Clare DK;Winn M;Topf M
通讯作者:
Topf M