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| Gene | FGFR3 |
| Variant | N540K |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | FGFR3 N540K lies within the protein kinase domain of the Fgfr3 protein (UniProt.org). N540K results in increased Fgfr3 autophosphorylation and substrate phosphorylation, and is transforming in cell culture (PMID: 26992226). |
| Associated Drug Resistance | Y |
| Category Variants Paths |
FGFR3 mutant FGFR3 act mut FGFR3 N540K |
| Transcript | NM_000142.5 |
| gDNA | chr4:g.1805644C>G |
| cDNA | c.1620C>G |
| Protein | p.N540K |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| XM_047449821.1 | chr4:g.1805635C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| NM_000142 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713873.2 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_047449823.1 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_047449824.1 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713870 | chr4:g.1805635C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713873 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713870.2 | chr4:g.1805635C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713870.1 | chr4:g.1805635C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| NM_000142.5 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| XM_006713873.1 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| NM_000142.4 | chr4:g.1805644C>G | c.1620C>G | p.N540K | RefSeq | GRCh38/hg38 |
| Molecular Profile | Protein Effect | Treatment Approaches |
|---|---|---|
| FGFR3 N540K | gain of function | FGFR Inhibitor (Pan) FGFR3 Inhibitor |
| FGFR3 S249C FGFR3 N540K | ||
| FGFR3 S249C FGFR3 N540K PIK3CA E545K | ||
| FGFR3 Y373C FGFR3 N540K FGFR3 V555L FGFR3 L608V | ||
| FGFR3 Y373C FGFR3 N540K |