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| Gene | FGFR2 |
| Variant | F276C |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | FGFR2 F276C lies within the Ig-like C2-type domain 3 of the Fgfr2 protein (UniPort.org). F276C results in increased Fgfr2 expression, altered cellular localization, and ligand-independent Erk phosphorylation in culture (PMID: 30761385). |
| Associated Drug Resistance | |
| Category Variants Paths |
FGFR2 mutant FGFR2 act mut FGFR2 F276C FGFR2 mutant FGFR2 exon7 FGFR2 F276C |
| Transcript | NM_000141.5 |
| gDNA | chr10:g.121520091A>C |
| cDNA | c.827T>G |
| Protein | p.F276C |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_001320658 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_000141 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001320658.2 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_022970.4 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144917.1 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_022970 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_022970.3 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_000141.5 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144913 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001320658.1 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_000141.4 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144913.1 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144917.2 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144913.1 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| NM_001144917 | chr10:g.121520091A>C | c.827T>G | p.F276C | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| FGFR2 F276C | intrahepatic cholangiocarcinoma | predicted - sensitive | Infigratinib | Case Reports/Case Series | Actionable | In a Phase II trial, Truseltiq (infigratinib) treatment resulted in partial response after 2 months of therapy and response was maintained for 4 months in a patient with advanced intrahepatic cholangiocarcinoma harboring a FGFR2 F276C mutation, which is consistent with inhibition of Erk signaling in cholangiocarcinoma cells expressing FGFR2 F274C in culture (PMID: 30761385; NCT02150967). | 30761385 |
| FGFR2 F276C | intrahepatic cholangiocarcinoma | predicted - sensitive | Pazopanib | Case Reports/Case Series | Actionable | In a clinical case study, Votrient (pazopanib) treatment resulted in a partial response that continued for 11 months after starting treatment in a patient with intrahepatic cholangiocarcinoma harboring FGFR2 F276C (PMID: 34480077). | 34480077 |
| FGFR2 F276C | cholangiocarcinoma | predicted - sensitive | Pemigatinib | Case Reports/Case Series | Actionable | In a Phase I trial, Pemazyre (pemigatinib) treatment resulted in an objective response rate of 16.7% (2/12, both partial responses) and a disease control rate of 41.7% (5/12) in patients with advanced solid tumors harboring FGFR1/2/3 alterations including amplification, mutation, or fusion, including a partial response in a patient with cholangiocarcinoma harboring FGFR2 F276C (PMID: 37889382; NCT04258527). | 37889382 |