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Sci. STKE, 26 June 2007 PERSPECTIVESGPCRs Signaling Directly Through Src-Family KinasesDeirdre McGarrigle and Xin-Yun Huang* Department of Physiology, Cornell University Weill Medical College, New York, NY 10021, USA. Abstract: A wide range of extracellular signals are transduced by G protein–coupled receptors (GPCRs). When activated by ligands, GPCRs can activate associated heterotrimeric guanine nucleotide–binding proteins (G proteins), which in turn act on various effectors. Increasing evidence indicates that GPCRs also signal independently of heterotrimeric G proteins. Several GPCRs directly interact with Src-family kinases. Here, we discuss the evidence for direct interaction and activation of Src-family kinases by GPCRs and data that suggest that agonist dosage provides a mechanism by which GPCRs can switch between G protein–dependent and G protein–independent signaling. *Corresponding author. E-mail, xyhuang{at}med.cornell.edu
Citation: D. McGarrigle, X.-Y. Huang, GPCRs Signaling Directly Through Src-Family Kinases. Sci. STKE 2007, pe35 (2007). The editors suggest the following Related Resources on Science sites:In Science Signaling
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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882