Rs509749

rs509749 is a SNP in exon 8 of the LY9 gene; this SNP is also known as Met602Val. The (A) allele encodes the Met; the (G) allele encodes the Val.

The rarer (G) allele is undertransmitted in a family-based association study of systemic lupus erythematosus, leading to the conclusion that the (A) allele increases risk for SLE by increasing cytokine production and thereby enhancing the immune response.


 * is_associated_with_disease::Rheumatoid arthritis
 * is_associated_with_disease::Systemic lupus erythematosus