Figure 6From: Sequence features of HLA-DRB1 locus define putative basis for gene conversion and point mutationsSliding window analysis of nucleotide diversity in HLA-DRB1 exon 2, displaying stretches of totally conserved bases in the 374 DRB1-e2 sequences (of the length ≥ 3 bp; thick grey lines below the abscissa). Also indicated are the previously identified ARS-coding codons (thick black lines above the diversity graph).Back to article page