Which DNA repair system is involved in HNPCC?
["The HNPCC syndrome (hereditary non polyposis colon cancer) or Lynch syndrome stands for an autosomic dominant condition leading to the most prevalent hereditary colo-rectal cancers (CCR). MMR (mismatch repair)'s genes are involved in carcinogenesis as they play a role in ADNA mismatch repair.", 'Mutations in the genes of the mismatch DNA repair system and of the TGF-beta-II-receptor, the main defects of the HNPCC (hereditary nonpolyposis colorectal cancer), are exclusively identified in sequences of microsatellites. ', 'In HNPCC families, germline mutations in any of four genes encoding proteins of a specialized DNA repair system, the mismatch repair, predispose to cancer development. ']
['In HNPCC families, germline mutations in any of four genes encoding proteins of a specialized DNA repair system, the mismatch repair, predispose to cancer development.']
['In HNPCC, the mismatch DNA repair system is involved.']