Predicted amino acid alignment of the ELA -DQA locus. Dots indicate sequence identity to first sequence in alignment, Eqas-DQA*01. E. burchelli alleles are shown in gray, with light gray highlighting alleles previously known and dark gray highlighting new alleles discovered in this study. Red stars above amino acids indicate putative antigen binding sites, based on human HLA equivalents . The asterisk (*) represents a stop codon.