This research was supported by the grants from the National Natural Science Foundation of China (No. 39970817), and Project Sponsored by the Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry (No. 363).
Background At least five mismatch repair (MMR) genes, including hMSH2, hMLH1, hPMS, hPMS2, and hMSH6/GTBP, are associated with hereditary nonpolyposis colorectal cancer (HNPCC). More than 90% of families with HNPC...