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| Gene | CHEK2 |
| Variant | Y139* |
| Impact List | nonsense |
| Protein Effect | loss of function - predicted |
| Gene Variant Descriptions | CHEK2 Y139* results in a premature truncation of the Chek2 protein at amino acid 139 of 543 (UniProt.org). Y139* results in reduced Chek2 protein and mRNA levels, and decreased p53 phosphorylation and protein levels in patient samples (PMID: 32041497), and therefore, is predicted to lead to a loss of Chek2 protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
CHEK2 mutant CHEK2 inact mut CHEK2 Y139* |
| Transcript | NM_007194.4 |
| gDNA | chr22:g.28725270G>T |
| cDNA | c.417C>A |
| Protein | p.Y139* |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_007194.4 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_001349956.1 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_145862.2 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_007194.3 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_145862.2 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| XM_011529843 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_007194 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_145862 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| NM_001349956.2 | chr22:g.28725270G>T | c.417C>A | p.Y139* | RefSeq | GRCh38/hg38 |
| Molecular Profile | Protein Effect | Treatment Approaches |
|---|---|---|
| CHEK2 Y139* | loss of function - predicted | Olaparib |