Dynein and Star interact in EGFR signaling and ligand trafficking.
Dynein and Star interact in EGFR signaling and ligand trafficking.
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DOI:
10.1242/jcs.027144
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发表时间:
2008-08-15
影响因子:
4
通讯作者:
Hays, Thomas S.
中科院分区:
文献类型:
--
作者:
Iyadurai, Stanley J. P.;Robinson, John T.;Ma, Lingzhi;He, Yungui;Mische, Sarah;Li, Min-gang;Brown, William;Guichard, Annabel;Bier, Ethan;Hays, Thomas S.
Intracellular transport and processing of ligands is critical to the activation of signal transduction pathways that guide development. Star is an essential gene in Drosophila that has been implicated in the trafficking of ligands for epidermal growth factor (EGF) receptor signaling. The role of cytoplasmic motors in the endocytic and secretory pathways is well known, but the specific requirement of motors in EGF receptor transport has not been investigated. We identified Star in a screen designed to recover second-site modifiers of the dominant rough eye phenotype of the Glued mutation Gl1. The Glued (Gl) locus encodes the p150 subunit of the dynactin complex, an activator of cytoplasmic dynein-driven motility. We show that alleles of Gl and dynein genetically interact with both Star and EGFR alleles. Similarly to mutations in Star, the Gl1 mutation is capable of modifying the phenotypes of the EGFR mutation Ellipse. These genetic interactions suggest a model in which Star, dynactin and dynein cooperate in the trafficking of EGF ligands. In support of this model, overexpression of the cleaved, active Spitz ligand can partially bypass defective trafficking and suppress the genetic interactions. Our direct observations of live S2 cells show that export of Spitz-GFP from the endoplasmic reticulum, as well as the trafficking of Spitz-GFP vesicles, depends on both Star and dynein.
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影响因子:
11.4
作者:
Lebrand, C;Corti, M;Gruenberg, J
通讯作者:
Gruenberg, J
影响因子:
2.7
作者:
HEBERLEIN, U;HARIHARAN, IK;RUBIN, GM
通讯作者:
RUBIN, GM
DOI:
10.1083/jcb.152.1.213
发表时间:
2001-01-08
期刊:
The Journal of cell biology
影响因子:
--
作者:
Aridor M;Fish KN;Bannykh S;Weissman J;Roberts TH;Lippincott-Schwartz J;Balch WE
通讯作者:
Balch WE
影响因子:
64.8
作者:
HOLZBAUR, ELF;HAMMARBACK, JA;VALLEE, RB
通讯作者:
VALLEE, RB
影响因子:
14.9
作者:
Han, KH
通讯作者:
Han, KH