Hereditary nonpolyposis colorectal cancer: frequent occurrence of large genomic deletions in MSH2 and MLH1 genes.

Abstract excerpt

Hereditary nonpolyposis colorectal cancer (HNPCC) is often caused by a deficiency in DNA mismatch repair. By using conventional methods of mutation analysis, point mutations in the DNA mismatch repair genes MSH2 and MLH1 have been detected in up to 64% of patients suspected of HNPCC. However, large genomic deletions cannot be detected by these methods. In our study, we applied a semiquantitative multiplex PCR to...

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