TABLE 4.

Polymorphic and monomorphic residue positions in three-Angstrom patches on HLA-DPB1 and HLA-DPA1 alleles^*

Class II Locus	Sequence position	Molecular location	Surface exposure	3.0 Angstrom patches
DPB	8	Underside	±	7	8	9	31
DPB	11	Side	±	10	11	12	A11
DPB	28	Side	±	26	27	28	29	36	P8
DPB	33	Underside	++	30	32	33	34
DPB	35	Underside	+	7	34	35	36	48
DPB	36	Underside	±	28	35	36	37
DPB	43	Side	+	39	42	43	44	70
DPB	56	Side	+	52	55	56	57	60
DPB	57	Side	++	56	57	58
DPB	64	Top	+	63	64	65
DPB	65	Top	+	64	65	66	69
DPB	69	Top	+	65	68	69	70
DPB	70	Top	++	43	66	69	70	71
DPB	76	Top	+	72	75	76	77
DPB	84	Side	+	83	84	85	88
DPB	85	Side	++	81	84	85	86
DPB	86	Side	+	85	86	87
DPB	87	Side	++	86	87	88
DPB	91	Side	++	90	91	92
DPA	18	Side	+	14	16	17	18	67
DPA	28	Underside	+	25	26	27	28	29
DPA	31	Underside	+	20	30	31	32
DPA	50	Top	++	49	50	51
DPA	51	Top	+	47	50	51	52
DPA	72	Top	+	68	71	71	73	75	76
DPA	73	Top	+	72	73	74	75	76	77
DPA	83	Side	+	82	83	84	B37
DPA	111	Side	++	86	110	111	112
DPA	127	Side	+	121	126	127	128
DPA	160	Bottom	+	124	159	160	161

^*Polymorphic positions are marked in bold, underlined font.