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Gene Symbol GNAS
Synonyms AHO | C20orf45 | GNAS1 | GPSA | GSA | GSP | NESP | PITA3 | POH | SCG6 | SgVI
Gene Description GNAS, GNAS complex locus, is a GTPase that is activated upon ligand binding of a G-protein coupled receptor, and is involved in mediating hormone response (PMID: 23640210, PMID: 25851935). Hotspot mutations impair Gnas GTPase activity, resulting in constitutive pathway activation and are common in a variety of tumor types (PMID: 23640210).


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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
EML4 - ALK GNAS amp lung non-small cell carcinoma predicted - resistant Crizotinib Case Reports/Case Series Actionable In a clinical study, a non-small cell lung carcinoma patient harboring EML4-ALK treated with Xalkori (crizotinib) responded, but eventually progressed, and was subsequently found to harbor a presumed resistance alteration, GNAS amplification (PMID: 29636358). 29636358