CD4 and rheumatoid arthritis: After performing the cis-eQTL analysis of the gene expression of CD4+ T cell from RA patients having an active disease (n = 8,747,394 tests), we detected two genome-wide significant associations with FAM66C gene: SNP rs7976243 (chromosome 12p13.3, PFDR = 2.85e−2) and SNP rs2244822 (chromosome 12p13.3, PFDR = 2.85e−2).