As part of a search for causative genes of familial pancreatic carcinoma, the p16 genes were sequenced in members of 21 families with a phenotype of familial pancreatic carcinoma (2 or more first degree relatives affected). One family was found in which affected members carried a novel p16 allele with a G to T transversion at position 451, creating a missense amino acid change at codon 145 (Asp to Cys) and possibly disrupting the donor splice site of the exon 2/3 boundary. This coding change is not a known polymorphism, and occurs at a codon position in which another missense/splicing change has been shown to be linked to familial melanoma/pancreas cancer. Hum Mutat 12:70, 1998.
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Moskaluk et al. (1998) studied this question.