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Table 6 Non-synonymous amino acid substitutions, antigen binding sites and selected amino acid sites within the MHC class II loci analyzed

From: Genetic diversity, evolution and selection in the major histocompatibility complex DRB and DQB loci in the family Equidae

Gene Lenght (AA) No of variants No of ABS No of SAAS
DRB1 86 68 36 28
DRB2 86 42 21 9
DRB3 86 25 11 1
DQB1 89 67 27 24
DQB2 89 43 15 13
DQB2-like 89 22 16 4
DQB3 89 7 1 0