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. 2001 Aug;3(3):98–104. doi: 10.1016/S1525-1578(10)60658-7

Figure 3.

Figure 3.

Class I and Class II alleles arise from existing alleles through several postulated mechanisms. 15 DRB1*1120 likely arose via interallelic recombination between DRB1*1302 and a DRB1*11 allele, 35 while DRB1*0811 probably is derived from DRB1*0802 by a point mutation. 14