Sorting it out: AP-2 and alternate clathrin adaptors in endocytic cargo selection

被引:246
作者
Traub, LM [1 ]
机构
[1] Univ Pittsburgh, Sch Med, Dept Cell Biol & Physiol, Pittsburgh, PA 15261 USA
关键词
endocytosis; sorting; clathrin; cargo; AP-2;
D O I
10.1083/jcb.200309175
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The AP-2 adaptor complex is widely viewed as a linchpin molecule in clathrin-mediated endocytosis, simultaneously binding both clathrin and receptors. This dual interaction couples cargo capture with clathrin coat assembly, but it has now been discovered that the association with cargo is tightly regulated. Remarkably, AP-2 is not obligatory for all clathrin-mediated uptake, and several alternate adaptors appear to perform similar sorting and assembly functions at the clathrin bud site.
引用
收藏
页码:203 / 208
页数:6
相关论文
共 59 条
[31]   Disruption of the endocytic protein HIP1 results in neurological deficits and decreased AMPA receptor trafficking [J].
Metzler, M ;
Li, B ;
Gan, L ;
Georgiou, J ;
Gutekunst, CA ;
Wang, YS ;
Torre, E ;
Devon, RS ;
Oh, R ;
Legendre-Guillemin, V ;
Rich, M ;
Alvarez, C ;
Gertsenstein, M ;
McPherson, PS ;
Nagy, A ;
Wang, YT ;
Roder, JC ;
Raymond, LA ;
Hayden, MR .
EMBO JOURNAL, 2003, 22 (13) :3254-3266
[32]   Scaffolding functions of arrestin-2 revealed by crystal structure and mutagenesis [J].
Milano, SK ;
Pace, HC ;
Kim, YM ;
Brenner, C ;
Benovic, JL .
BIOCHEMISTRY, 2002, 41 (10) :3321-3328
[33]   The autosomal recessive hypercholesterolemia (ARH) protein interfaces directly with the clathrin-coat machinery [J].
Mishra, SK ;
Watkins, SC ;
Traub, LM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (25) :16099-16104
[34]   Disabled-2 exhibits the properties of a cargo-selective endocytic clathrin adaptor [J].
Mishra, SK ;
Keyel, PA ;
Hawryluk, MJ ;
Agostinelli, NR ;
Watkins, SC ;
Traub, LM .
EMBO JOURNAL, 2002, 21 (18) :4915-4926
[35]   Clathrin- and AP-2-binding sites in HIP1 uncover a general assembly role for endocytic accessory proteins [J].
Mishra, SK ;
Agostinelli, NR ;
Brett, TJ ;
Mizukami, I ;
Ross, TS ;
Traub, LM .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2001, 276 (49) :46230-46236
[36]   Dual roles for the Dab2 adaptor protein in embryonic development and kidney transport [J].
Morris, SM ;
Tallquist, MD ;
Rock, CO ;
Cooper, JA .
EMBO JOURNAL, 2002, 21 (07) :1555-1564
[37]   Disabled-2 colocalizes with the LDLR in clathrin-coated pits and interacts with AP-2 [J].
Morris, SM ;
Cooper, JA .
TRAFFIC, 2001, 2 (02) :111-123
[38]   Clathrin-mediated endocytosis in AP-2-depleted cells [J].
Motley, A ;
Bright, NA ;
Seaman, MNJ ;
Robinson, MS .
JOURNAL OF CELL BIOLOGY, 2003, 162 (05) :909-918
[39]   Inhibition of the receptor-binding function of clathrin adaptor protein AP-2 by dominant-negative mutant μ2 subunit and its effects on endocytosis [J].
Nesterov, A ;
Carter, RE ;
Sorkina, T ;
Gill, GN ;
Sorkin, A .
EMBO JOURNAL, 1999, 18 (09) :2489-2499
[40]   UNC-11, a Caenorhabditis elegans AP180 homologue, regulates the size and protein composition of synaptic vesicles [J].
Nonet, ML ;
Holgado, AM ;
Brewer, F ;
Serpe, CJ ;
Norbeck, BA ;
Holleran, J ;
Wei, LP ;
Hartwieg, E ;
Jorgensen, EM ;
Alfonso, A .
MOLECULAR BIOLOGY OF THE CELL, 1999, 10 (07) :2343-2360