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GENATLAS PHENOTYPE |
last update : 05-03-2025 |
Symbol | BRCA1 |
Location | 17q21.31 |
Name | hereditary breast/ovarian cancer |
Corresponding gene | BRCA1 |
related resource | Breastcancer |
Other symbol(s) | BCCR5 |
Main clinical features |
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Genetic determination | autosomal dominant |
Prevalence | cancer-predisposing BRCA1 mutation : between 1/500 and 1/1000. |
Related entries | BRCA2, TSG17B, (OMIM : 114480) |
Function/system disorder | endocrinology |
neoplasia | |
Type | susceptibility factor |
Gene product |
Name | breast cancer type 1 susceptibility protein |
Mechanism(s) |
Gene mutation | Chromosome rearrangement | Effect | Comments | |
---|---|---|---|---|
various types | abnormal protein/loss of function | more than 300 different germline mutations, over 90p100 producing a premature stop codon and approximatively 60p100 unique to an individual family, with a significant proportion of large deletions and duplications resulting from Alu-mediated recombination |
Remark(s) | multifactorial disorder caused by both non-genetic and genetic factors; founder mutations are observed in some ethnic groups. |
Genotype/Phenotype correlations |
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