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Gene | NRAS |
Variant | K135N |
Impact List | missense |
Protein Effect | no effect |
Gene Variant Descriptions | NRAS K135N lies within the G domain of the Nras protein (PMID: 17384584). K135N results in similar cell proliferation and viability levels to wild-type Nras in cultured cells (PMID: 29533785, PMID: 34117033) and shows similar MAPK/ERK pathway activation to wild-type Nras in an in vitro assay (PMID: 34117033). |
Associated Drug Resistance | |
Category Variants Paths |
NRAS mutant NRAS exon4 NRAS K135N |
Transcript | NM_002524.5 |
gDNA | chr1:g.114709614C>G |
cDNA | c.405G>C |
Protein | p.K135N |
Source Database | RefSeq |
Genome Build | GRCh38/hg38 |
Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
---|---|---|---|---|---|
NM_002524.5 | chr1:g.114709614C>G | c.405G>C | p.K135N | RefSeq | GRCh38/hg38 |
NM_002524 | chr1:g.114709614C>G | c.405G>C | p.K135N | RefSeq | GRCh38/hg38 |
NM_002524.4 | chr1:g.114709614C>G | c.405G>C | p.K135N | RefSeq | GRCh38/hg38 |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
NRAS K135N | colorectal cancer | predicted - sensitive | Cetuximab | Preclinical - Cell line xenograft | Actionable | In a preclinical study, a cell line xenograft model of colorectal cancer expressing NRAS K135N demonstrated similar sensitivity to Erbitux (cetuximab) treatment compared to a NRAS wild-type model (PMID: 34117033). | 34117033 |