Average nucleotide and amino acid distances among raccoon MHC DRB exon 2 alleles.

Standard errors (in parentheses) were obtained through 1000 bootstrap replicates. Distances were corrected for multiple substitutions using K2P model for nucleotide distances and Poisson distribution for amino acid differences. Putative peptide binding region (PBR) sites were those determined by Brown et al. [38] and Stern et al. [39] Distances are given as a percentage per site.