Not less important, prostate cancer susceptibility is mainly influenced by aberrations in the homologous recombination repair (HRR) genes (DNA damage repair genes BRCA1/2, DNA damage response gene ataxia-telangiectasia mutated (ATM), partner and localizer BRCA2 (PALB2) and RAD51) and mismatch repair (MMR) genes (MutL protein homolog (MLH)1, MSH2, MSH6, postmeiotic segregation increased 2 (PMS2)). Here, ATM is linked to Familial prostate cancer.