Table 1.

Intermolecular interactions between heavy chain and β₂m of H-2K^b, H-2D^b, and H-2L^d

	H-2Kb	H-2Db	H-2Ld
Heavy chain: β2m
vdw	17	24	7
H-bonds	7	13	10
(no. of MHC residues
involved)	(18)	(23)	(13)
α1:β2m
vdw	4	8	2
H-bonds	1	3	1
α2:β2m
vdw	9	8	2
H-bonds	3	2	1
α3:β2m
vdw	4	8	3
H-bonds	3	8	8

Distances of <4.0 Å for vdw contacts and <3.2 Å for H-bonds.