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|Protein Effect||gain of function|
|Gene Variant Descriptions||SRC E527K does not lie within any known functional domains of the Src protein (UniProt.org). E527K results in resistance of Src to phosphorylation and inactivation by CSK, increased Src kinase activity and phosphorylation in culture, leading to blood and bone pathologies in animal models (PMID: 7592628, PMID: 26936507), and is associated with drug resistance in culture (PMID: 25350844).|
|Associated Drug Resistance||Y|
|Transcript||gDNA||cDNA||Protein||Source Database||Genome Build|
|Molecular Profile||Indication/Tumor Type||Response Type||Therapy Name||Approval Status||Evidence Type||Efficacy Evidence||References|
|ERBB2 amp SRC E527K||gastroesophageal junction adenocarcinoma||resistant||Lapatinib||Preclinical - Cell culture||Actionable||In a preclinical study, an ERBB2 (HER2)-amplified gastroesophageal cancer cell line initially sensitive to treatment with Tykerb (lapatinib) in culture developed resistance and was subsequently found to have acquired a secondary drug resistant mutation, SRC E527K (PMID: 25350844).||25350844|
|ERBB2 amp SRC E527K||gastroesophageal junction adenocarcinoma||sensitive||Lapatinib + Saracatinib||Preclinical - Cell culture||Actionable||In a preclinical study, the combination of Tykerb (lapatinib) and Saracatinib (AZD0530) inhibited growth of ERBB2 (HER2)-amplified gastroesophageal adenocarcinoma cells harboring SRC E527K in culture (PMID: 25350844).||25350844|