A Clathrin-binding Site in the Hinge of the 2 Chain of Mammalian AP-2 Complexes (*)
A Clathrin-binding Site in the Hinge of the 2 Chain of Mammalian AP-2 Complexes (*)
复制标题
哺乳动物 AP-2 复合物 2 链铰链中的网格蛋白结合位点 (*)
DOI:
--
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发表时间:
1995
影响因子:
4.8
通讯作者:
T. Kirchhausen
中科院分区:
文献类型:
--
作者:
W. Shih;A. Gallusser;T. Kirchhausen
The assembly of cytosolic clathrin into the cytoplasmic face of coated pits and coated vesicles appears to be driven by the clathrin-associated protein (AP) complexes. We have previously shown that one of the large chains of the AP complexes, the β chain, is sufficient to drive coat assembly in vitro. This chain consists of two domains, the amino-terminal trunk and the carboxyl-terminal ear, linked by a “hinge.” We report here that presence of the hinge in recombinant β trunk or in recombinant β ear fragments is essential for driving in vitro assembly of clathrin into coats. We have also used a binding assay to map the clathrin-binding site by nested deletion of hinge sequences to a 50-residue region in the center of the hinge. This sequence is conserved in all known β sequences from multicellular organisms. The interaction of a single β hinge with a clathrin triskelion is weak, and we propose that recruitment of cytosolic clathrin to a forming coated pit involves simultaneous contacts between the legs of single clathrin trimers and the β hinges of two or three membrane-bound AP complexes. Uncoating is likely to require interruption of these contacts.
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DOI:
10.1016/s0021-9258(18)61070-1
发表时间:
1987-07
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Matsudaira
通讯作者:
P. Matsudaira
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Murphy,JE;Keen,JH
通讯作者:
Keen,JH
DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Keen,JH;Beck,KA;Kirchhausen,T;Jarrett,T
通讯作者:
Jarrett,T
DOI:
10.1126/science.8342026
发表时间:
1993
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Sorkin,A;Carpenter,G
通讯作者:
Carpenter,G
影响因子:
2.9
作者:
Prasad,K;Keen,JH
通讯作者:
Keen,JH