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| Gene | JAK2 |
| Variant | R683G |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | JAK2 R683G lies within the protein kinase domain 1 of the Jak2 protein (UniProt.org). R683G results in constitutive activation of the Jak2 protein as demonstrated by increased transcription of Stat5 (PMID: 26216197, PMID: 23748007), and results in cytokine-independent transformation in cell culture (PMID: 26216197, PMID: 18805579). |
| Associated Drug Resistance | |
| Category Variants Paths |
JAK2 mutant JAK2 act mut JAK2 R683G |
| Transcript | NM_004972.4 |
| gDNA | chr9:g.5078360A>G |
| cDNA | c.2047A>G |
| Protein | p.R683G |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_001322195.1 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322196.1 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322194.2 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_004972.4 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_004972 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322195.2 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322195 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322196.2 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322194 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322194.1 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_004972.3 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| NM_001322196 | chr9:g.5078360A>G | c.2047A>G | p.R683G | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| JAK2 R683G | Advanced Solid Tumor | sensitive | CHZ868 | Preclinical - Cell culture | Actionable | In a preclinical study, CHZ868 inhibited viability of a cell line expressing JAK2 R683G in culture (PMID: 37290440). | 37290440 |