Article
RACK1 recruits STAT3 specifically to insulin and insulin-like growth factor 1 receptors for activation, which is important for regulating anchorage-independent growth.
Molecular and cellular biology - 1 Jan 2006
Zhang Weizhou, Zong Cong S, Hermanto Ulrich, Lopez-Bergami Pablo, Ronai Ze'ev, Wang Lu-Hai
Abstract excerpt
Current understanding of the activation of STATs is through binding between the SH2 domain of STATs and phosphotyrosine of tyrosine kinases. Here we demonstrate a novel role of RACK1 as an adaptor for insulin and insulin-like growth factor 1 receptor (IGF-1R)-mediated STAT3 activation specifically. Intracellular association of RACK1 via its N-terminal WD domains 1 to 4 (WD1-4) with insulin receptor (IR)/IGF-1R is...
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