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Gene & pathway reference · FROM DR. PURSER’S TEACHING

BRCA1

BRCA1 helps repair damaged DNA. Clinically classified pathogenic variants can affect inherited cancer risk; a common SNP or a variant of uncertain significance is a different finding.

Based on teaching by Dan Purser, MD. How we prepare these guides

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

DNA repair and inherited cancer risk

DNA repair and inherited cancer risk

BRCA1 helps repair damaged DNA. Clinically classified pathogenic variants can affect inherited cancer risk; a common SNP or a variant of uncertain significance is a different finding.

Putting the pieces together

Dr. Purser includes BRCA1 in the cancer-risk part of his genetic reference. The essential next step is to identify the exact variant and its clinical classification, then connect it with personal and family cancer history. The listed teaching markers should not be treated as a positive hereditary-cancer test. Genetic counseling can clarify whether confirmatory testing or a different screening plan is appropriate.

A question to bring to your visit

Is this a clinically classified pathogenic finding, and does it change screening for me or my family?

Variant lookup

These names can help you find an entry on your original genetic report. Seeing a name here does not tell you whether it affects your health or whether you need treatment.

Names you may see

Breast Cancer 1