rs1734791 is one of several SNPs in the methyl CpG binding protein 2 (MECP2) that have been associated with risk for systemic lupus erythromatosis (SLE). The MECP2 gene is located on the X chromosome, which may be instructive since lupus is a predominantly female disease.

An initial survey of 600 Korean patients, followed by 1,000 Caucasian patients, ultimately led to a meta-analysis indicating an odds ratio for the rs1734791(A) risk allele of 1.39 .[R]

rs1734791

Parent Gene: MECP2

Importance: 1
Less common allele: T = 44%
More common allele: A = 56%
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