STAG1 and rheumatoid arthritis: For variants located exactly within the gene(s), significant immunologically relevant associations were found for CTCF (eosinophil WBC count), MAU2 (basophil WBC count), PDS5B (asthma), SGOs (multiple sclerosis, IgG glycosylation, macrophage driven inflammation), SMC1B (RA), STAG1 (RA, lymphocyte cell count, C-reactive protein levels).