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| Gene | NRAS |
| Variant | A146X |
| Impact List | missense |
| Protein Effect | unknown |
| Gene Variant Descriptions | NRAS A146X indicates any NRAS missense mutation that results in replacement of the alanine (A) at amino acid 146 by a different amino acid. |
| Associated Drug Resistance | |
| Category Variants Paths |
NRAS mutant NRAS exon4 NRAS A146X |
| Transcript | NM_002524.5 |
| gDNA | chr1:g.114709581_114709583 |
| cDNA | c.436_438 |
| Protein | p.A146 |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_002524.5 | chr1:g.114709581_114709583 | c.436_438 | p.A146 | RefSeq | GRCh38/hg38 |
| NM_002524 | chr1:g.114709581_114709583 | c.436_438 | p.A146 | RefSeq | GRCh38/hg38 |
| NM_002524.4 | chr1:g.114709581_114709583 | c.436_438 | p.A146 | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| NRAS A146X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 4, codon 146 mutations is contraindicated (FDA.gov). | detail... |
| NRAS A146X | colorectal cancer | resistant | Panitumumab | FDA contraindicated | Actionable | Vectibix (panitumumab) treatment of colorectal cancer patients with NRAS exon 4, codon 146 mutations is contraindicated (FDA.gov). | detail... |