Genotype-phenotype correlations of new causative APC gene mutations in patients with familial adenomatous polyposis.
Open Access
- 1 September 1995
- journal article
- research article
- Published by BMJ in Journal of Medical Genetics
- Vol. 32 (9) , 728-731
- https://doi.org/10.1136/jmg.32.9.728
Abstract
Nine new causative mutations and seven previously characterised mutations of the APC gene of patients with familial adenomatous polyposis (FAP) were analysed for any genotype-phenotype correlations. The only clear genotype-phenotype correlation found was between the position of the mutation site and the presence or absence of congenital hypertrophy of the retinal pigment epithelium (CHRPE). A more distal mutation site was associated with an earlier age of onset of symptoms and a larger number of colonic polyps, but a notable amount of intrafamilial variation was observed.Keywords
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