Rs733618

rs733618, also known as T/C-1772, is a SNP in the upstream activator sequence of the cytotoxic T lymphocyte associated antigen-4 CTLA4 gene. This gene encodes the CD152 antigen.

A study of 165 Swedish myasthenia gravis patients concluded that the rs733618(A;G) heterozygotes had an odds ratio of 1.87 (CI: 1.01-3.49, p=0.049) for the disease compared to healthy individuals, yet neither allele on its own showed increased risk.

rs231775 (CTLA4_+49_G/A P=0.0219) and rs733618 (CTLA4_-1722_T/C P=0.0096) susceptibility to Graves' disease