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| Gene | NRAS |
| Variant | I24N |
| Impact List | missense |
| Protein Effect | loss of function - predicted |
| Gene Variant Descriptions | NRAS I24N lies within the G domain of the Nras protein (PMID: 17384584). I24N results in autoactivation of Sos comparable to wild-type Nras under an autoinhibitory-free condition of Sos, but leads to deregulation of Sos activation under an autoinhibitory condition of Sos in an in vitro assay (PMID: 32753483), and results in increased GTP-bound Nras and activation of downstream signaling in cell culture, demonstrated by increased phosphorylation of Mek, and impaired cell migration in a zebrafish model (PMID: 21263000), and therefore, is predicted to lead to a loss of Nras protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
NRAS mutant NRAS act mut NRAS I24N NRAS mutant NRAS exon2 NRAS I24N |
| Transcript | NM_002524.5 |
| gDNA | chr1:g.114716090A>T |
| cDNA | c.71T>A |
| Protein | p.I24N |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_002524.5 | chr1:g.114716090A>T | c.71T>A | p.I24N | RefSeq | GRCh38/hg38 |
| NM_002524.4 | chr1:g.114716090A>T | c.71T>A | p.I24N | RefSeq | GRCh38/hg38 |
| Molecular Profile | Protein Effect | Treatment Approaches |
|---|---|---|
| NRAS I24N | loss of function - predicted | MEK inhibitor (Pan) MEK1 Inhibitor MEK2 Inhibitor PI3K Inhibitor (Pan) PIK3CA inhibitor RAS Inhibitor (Pan) |