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APC germline mutations identified in Czech patients with familial adenomatous polyposis
Author(s) -
Kohoutová Milada,
Štekrová Jitka,
Jirásek Václav,
Kapras Jan
Publication year - 2002
Publication title -
human mutation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.981
H-Index - 162
eISSN - 1098-1004
pISSN - 1059-7794
DOI - 10.1002/humu.9028
Subject(s) - familial adenomatous polyposis , adenomatous polyposis coli , biology , genetics , missense mutation , germline , germline mutation , nonsense mutation , mutation , gene , cancer , colorectal cancer
Familial adenomatous polyposis (FAP) is an autosomal dominantly inherited predisposition to colorectal cancer, which is caused by germline mutations in the adenomatous polyposis coli ( APC ) gene. The APC mutations have been investigated in 46 Czech unrelated FAP families and 9 suspected FAP families using DGGE analysis and direct DNA sequencing. We found 25 germline APC mutations and identified 11 which were not previously reported. Of the identified mutations, 10 were 1 to 5 bp deletions, four were 1 bp insertions and six were nonsense, all leading to the formation of premature stop codon. In addition, we detected two mutations in the splice‐donor region of APC intron 11, one missense and two samesense mutations. Phenotypes of patients with known and novel types of mutations are presented and discussed. © 2002 Wiley‐Liss, Inc.