OVARIAN CANCER and US: K618A

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Showing posts with label K618A. Show all posts
Showing posts with label K618A. Show all posts

Wednesday, March 21, 2012

The Germline MLH1 K618A Variant and Susceptibility to Lynch Syndrome-Associated Tumors.



The Germline MLH1 K618A Variant and Susceptibility to Lynch Syndrome-Associated Tumors.:

Abstract
Missense variants discovered during sequencing of cancer susceptibility genes can be problematic for clinical interpretation. MLH1 K618A, which results from a 2-bp alteration (AAG→GCG) leading to a substitution of lysine to alanine in codon 618, has variously been interpreted as a pathogenic mutation, a variant of unknown significance, and a benign polymorphism. .........................We conclude that MLH1 K618A is not a fully penetrant Lynch syndrome mutation, although it is not without effect, appearing to increase the risk of Lynch syndrome-associated tumors approximately twofold. Our systematic assessment approach may be useful for variants in other genes.