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Gene PIK3CA
Variant F930S
Impact List missense
Protein Effect gain of function - predicted
Gene Variant Descriptions PIK3CA F930S lies within the PI3K/PI4K domain of the Pik3ca protein (UniProt.org). F930S results in activation of Pik3ca signaling as indicated by increased phosphorylation of Akt and Mapk3/Mapk1 (Erk1/2), and confers resistance to some EGFR inhibitors in culture (PMID: 28424201), and therefore, is predicted to lead to a gain of Pik3ca protein function.
Associated Drug Resistance Y
Category Variants Paths

PIK3CA mutant PIK3CA act mut PIK3CA F930S

PIK3CA mutant PIK3CA exon20 PIK3CA F930S

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Transcript NM_006218.4
gDNA chr3:g.179230229T>C
cDNA c.2789T>C
Protein p.F930S
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
XM_011512894.2 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
NM_006218.3 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
XM_006713658.4 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
XM_006713658.5 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
XM_011512894 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
NM_006218.4 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
XM_006713658 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38
NM_006218 chr3:g.179230229T>C c.2789T>C p.F930S RefSeq GRCh38/hg38

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  • Use simple literal full or partial string matches
  • Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page. Filtering has no impact on query parameters.
  • Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
PIK3CA F930S colorectal cancer resistant Cetuximab + Fluorouracil Case Reports/Case Series Actionable In a clinical study, PIK3CA F930S was identified as a potential mechanism for acquired Erbitux (cetuximab) resistance in a colorectal cancer patient, which is consistent with cell culture studies demonstrating moderate resistance to Erbitux (cetuximab) and Fluorouracil combination treatment in colorectal cancer cells over expressing PIK3CA F930S (PMID: 28424201). 28424201