CD (2q12, 18p11, 22q11); RA (1p36, 4q27, 6q23); UC(2p16, 6q23); T1D (18p11); BLC (7p14);VIT (3q28); HYP (12q24); SLE (6p21); MG(6p21). The gene discussed is VIT; the disease is myasthenia gravis.