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| Gene | HRAS |
| Variant | Q61R |
| Impact List | missense |
| Protein Effect | loss of function |
| Gene Variant Descriptions | HRAS Q61R does not lie within any known functional domains of the Hras protein (UniProt.org). Q61R confers a loss of function to Hras protein as indicated by decreased Hras GTPase activity in an in vitro assay and transformation of cells in culture (PMID: 3510078). |
| Associated Drug Resistance | |
| Category Variants Paths |
HRAS mutant HRAS act mut HRAS Q61R HRAS mutant HRAS Q61X HRAS Q61R |
| Transcript | NM_005343.4 |
| gDNA | chr11:g.533874T>C |
| cDNA | c.182A>G |
| Protein | p.Q61R |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_005343.3 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_001130442 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_001130442.2 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_005343 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_001130442.3 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_176795 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_176795.5 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_005343.4 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| NM_176795.4 | chr11:g.533874T>C | c.182A>G | p.Q61R | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| HRAS Q61R | Advanced Solid Tumor | sensitive | Everolimus | Preclinical - Cell culture | Actionable | In a preclinical study, transformed cells expressing HRAS Q61R demonstrated sensitivity to growth inhibition by Afinitor (everolimus) in culture (PMID: 26544513). | 26544513 |
| HRAS Q61R | Advanced Solid Tumor | sensitive | Binimetinib | Preclinical - Cell culture | Actionable | In a preclinical study, transformed cells expressing HRAS Q61R demonstrated sensitivity to growth inhibition by Mektovi (binimetinib) in culture (PMID: 26544513). | 26544513 |
| HRAS Q61R | bladder urothelial carcinoma | predicted - sensitive | Tipifarnib | Case Reports/Case Series | Actionable | In a Phase II trial, Zarnestra (tipifarnib) demonstrated manageable toxicity profile, resulted in an objective response rate of 33.3% (5/15) in patients with transitional cell carcinoma harboring HRAS mutations, 2 patients with bladder urothelial carcinoma harbored HRAS Q61R achieved partial responses (PMID: 32636318; NCT02535650). | 32636318 |