Table II.

HLA DR genotypes in IA-2 Ab-positive relatives according to their JM epitope reactivity

HLA DR GenotypeIA-2 JM Autoantibody Reactivity
JM1 only (n = 23)JM2 only (n = 31)JM1 and JM2 (n = 1)JM negative (n = 28)
DR3/41 (4)a12 (39)011 (39)
DR13/41 (4)6 (19)00
DR1/405 (16)01 (4)
DR4/yb9 (39)8 (26)112 (43)
DRx/xc12 (52)1 (3)04 (14)
  • a Percentages are listed in parentheses.

  • b y, Alleles other than DR1, DR3, and DR13.

  • c x, Alleles other than DR4.