Structure and function of the Arp2/3 complex

被引:122
作者
Pollard, TD [1 ]
Beltzner, CC [1 ]
机构
[1] Yale Univ, Dept Mol Cellular & Dev Biol, New Haven, CT 06520 USA
关键词
D O I
10.1016/S0959-440X(02)00396-2
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The Arp2/3 complex, a 220 kDa macromolecular assembly comprising two actin-related proteins and five other subunits, plays a key role in cellular motility by initiating the polymerization of new actin filaments. Crystal and cryo-electron microscopic structures of the Arp2/3 complex and branch junctions have clarified extensive biochemical data on the mechanism of this process.
引用
收藏
页码:768 / 774
页数:7
相关论文
共 70 条
[1]   Structure of Cdc42 in complex with the GTPase-binding domain of the 'Wiskott-Aldrich syndrome' protein [J].
Abdul-Manan, N ;
Aghazadeh, B ;
Liu, GA ;
Majumdar, A ;
Ouerfelli, O ;
Siminovitch, KA ;
Rosen, MK .
NATURE, 1999, 399 (6734) :379-383
[2]   Direct real-time observation of actin filament branching mediated by Arp2/3 complex using total internal reflection fluorescence microscopy [J].
Amann, KJ ;
Pollard, TD .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (26) :15009-15013
[3]   The F-actin side binding activity of the Arp2/3 complex is essential for actin nucleation and lamellipod extension [J].
Bailly, M ;
Ichetovkin, I ;
Grant, W ;
Zebda, N ;
Machesky, LM ;
Segall, JE ;
Condeelis, J .
CURRENT BIOLOGY, 2001, 11 (08) :620-625
[4]   Fission yeast Sop2p: A novel and evolutionarily conserved protein that interacts with Arp3p and modulates profilin function [J].
Balasubramanian, MK ;
Feoktistova, A ;
McCollum, D ;
Gould, KL .
EMBO JOURNAL, 1996, 15 (23) :6426-6437
[5]   Interactions of ADF/cofilin, Arp2/3 complex, capping protein and profilin in remodeling of branched actin filament networks [J].
Blanchoin, L ;
Pollard, TD ;
Mullins, RD .
CURRENT BIOLOGY, 2000, 10 (20) :1273-1282
[6]   Direct observation of dendritic actin filament networks nucleated by Arp2/3 complex and WASP/Scar proteins [J].
Blanchoin, L ;
Amann, KJ ;
Higgs, HN ;
Marchand, JB ;
Kaiser, DA ;
Pollard, TD .
NATURE, 2000, 404 (6781) :1007-1011
[7]   Turning on the Arp2/3 complex at atomic resolution [J].
Borths, EL ;
Welch, MD .
STRUCTURE, 2002, 10 (02) :131-135
[8]   GRB2 links signaling to actin assembly by enhancing interaction of neural Wiskott-Aldrich syndrome protein (N-WASp) with actin-related protein (ARP2/3) complex [J].
Carlier, MF ;
Nioche, P ;
Broutin-L'Hermite, I ;
Boujemaa, R ;
Le Clainche, C ;
Egile, C ;
Garbay, C ;
Ducruix, A ;
Sansonetti, P ;
Pantaloni, D .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2000, 275 (29) :21946-21952
[9]   Growth of branched actin networks against obstacles [J].
Carlsson, AE .
BIOPHYSICAL JOURNAL, 2001, 81 (04) :1907-1923
[10]   Role of cofilin in epidermal growth factor-stimulated actin polymerization and lamellipod protrusion [J].
Chan, AY ;
Bailly, M ;
Zebda, N ;
Segall, JE ;
Condeelis, JS .
JOURNAL OF CELL BIOLOGY, 2000, 148 (03) :531-542