While wild type APC sequences were found in two mummies, we discovered the E1317Q missense mutation, known to be a colorectal cancer predisposing mutation, in a large intestine tissue of an 18th century mummy.
Given the substantial size of our study and the consistency of our findings with the results of our meta-analyses, we conclude that it is unlikely that APC E1317Q is associated with a clinically meaningful risk of colorectal cancer.
In Jewish CRC patients the E1317Q variant plays little if any role in colorectal cancer susceptibility and genetic testing for this variant is not warranted.
Thus, our aim was to investigate the prevalence of I1307K and E1317Q in Swedish colorectal cancer patients in order to determine if these genetic variants are important predisposing factors to colorectal cancer in this population.