In less than two years time, STAT4[6], ITGAM[7]–[9], BLK[8], PXK and KIAA1542[7], BANK1[10] and TNFAIP3[11],[12] and several other genes have been identified as associated with SLE [13]–[16]. Here, BANK1 is linked to systemic lupus erythematosus.