The DNA cytosine deaminase APOBEC3B is shown to be overexpressed and highly active in most breast cancers; deamination by APOBEC3B could serve as an endogenous, continual source of DNA damage leading to mutations, including C-to-T transitions and other aberrations seen in many breast tumours.
- Michael B. Burns
- Lela Lackey
- Reuben S. Harris