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| Gene | RET |
| Variant | C634G |
| Impact List | missense |
| Protein Effect | gain of function - predicted |
| Gene Variant Descriptions | RET C634G lies within the cysteine-rich region of the Ret protein (PMID: 9879991). C634G is transforming in cell culture (PMID: 9230192), and therefore, is predicted to lead to a gain of Ret protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
RET mutant RET act mut RET C634G RET mutant RET C634X RET C634G |
| Transcript | NM_020975.6 |
| gDNA | chr10:g.43114500T>G |
| cDNA | c.1900T>G |
| Protein | p.C634G |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_020975.6 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406760.1 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_020630.7 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406744.1 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406743.1 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406759.1 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406786.1 | chr10:g.43123795T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_001406783.1 | chr10:g.43123795T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_020630 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_020630.5 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_020975.5 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| NM_020975 | chr10:g.43114500T>G | c.1900T>G | p.C634G | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| RET C634G | medullary thyroid carcinoma | sensitive | Selpercatinib | FDA approved - On Companion Diagnostic | Actionable | In a Phase I/II trial (LIBRETTO-001) that supported FDA approval, Retevmo (selpercatinib) treatment resulted in an objective response rate (ORR) of 69% (38/55, 5 complete and 33 partial responses) in previously treated adult and pediatric patients of 12 years and older with medullary thyroid cancer harboring RET mutations as detected by an approved test, including RET C634G; ORR was 73% (64/88) in treatment naive patients (PMID: 32846061; NCT03157128). | 32846061 detail... detail... |