Detailed Information on Publication Record
2013
Bicaudal-D uses a parallel, homodimeric coiled coil with heterotypic registry to coordinate recruitment of cargos to dynein
LIU, Yang, Hannah K SALTER, Andrew N HOLDING, Christopher M JOHNSON, Elaine STEPHENS et. al.Basic information
Original name
Bicaudal-D uses a parallel, homodimeric coiled coil with heterotypic registry to coordinate recruitment of cargos to dynein
Authors
LIU, Yang (826 United Kingdom of Great Britain and Northern Ireland), Hannah K SALTER (826 United Kingdom of Great Britain and Northern Ireland), Andrew N HOLDING (826 United Kingdom of Great Britain and Northern Ireland), Christopher M JOHNSON (826 United Kingdom of Great Britain and Northern Ireland), Elaine STEPHENS (826 United Kingdom of Great Britain and Northern Ireland), Peter LUKAVSKY (40 Austria, guarantor, belonging to the institution), John WALSHAW (826 United Kingdom of Great Britain and Northern Ireland) and Simon L BULLOCK (826 United Kingdom of Great Britain and Northern Ireland)
Edition
GENES & DEVELOPMENT, COLD SPRING HARBOR, COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT, 2013, 0890-9369
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
Genetics and molecular biology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 12.639
RIV identification code
RIV/00216224:14740/13:00069110
Organization unit
Central European Institute of Technology
UT WoS
000320110000003
Keywords in English
Bicaudal-D; coiled coil; dynein; cargo binding; crystal structure; Drosophila
Tags
International impact, Reviewed
Změněno: 4/9/2013 10:10, Olga Křížová
Abstract
V originále
Cytoplasmic dynein is the major minus end-directed microtubule motor in eukaryotes. However, there is little structural insight into how different cargos are recognized and linked to the motor complex. Here we describe the 2.2 angstrom resolution crystal structure of a cargo-binding region of the dynein adaptor Bicaudal-D (BicD), which reveals a parallel coiled-coil homodimer. We identify a shared binding site for two cargo-associated proteins-Rab6 and the RNA-binding protein Egalitarian (Egl)-within a region of the BicD structure with classical, homotypic core packing. Structure-based mutagenesis in Drosophila provides evidence that occupancy of this site drives association of BicD with dynein, thereby coupling motor recruitment to cargo availability. The structure also contains a region in which, remarkably, the same residues in the polypeptide sequence have different heptad registry in each chain. In vitro and in vivo analysis of a classical Drosophila dominant mutation reveals that this heterotypic region regulates the recruitment of dynein to BicD. Our results support a model in which the heterotypic segment is part of a molecular switch that promotes release of BicD autoinhibition following cargo binding to the neighboring, homotypic coiled-coil region. Overall, our data reveal a pivotal role of a highly asymmetric coiled-coil domain in coordinating the assembly of cargo-motor complexes.
Links
ED1.1.00/02.0068, research and development project |
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