TRAF1 and juvenile idiopathic arthritis: PTPN2, ANGPT1, COG6 (122), CD80, JMJD1C (123), TRAF1-C5 (124), VTCN1 (125), IL2RA, IL2RB, STAT4 (126), TNFAIP3 and TRAF1/C5 (127) were found to be JIA-predisposing loci.