The polymorphism at residue 57 of the DQB1 polypeptide is of particular interest since it may play a major structural role in the formation of a salt bridge structure at one end of the peptide-binding cleft of the DQ molecules .
the polymorphism at residue 57 of the dqb1 polypeptide is of particular interest since it may play a major structural role in the formation of a salt bridge structure at one end of the peptide-binding cleft of the dq molecules .
O O O B-peptide I-peptide O O B-peptide I-peptide O O O O O O O O O O O O O O O O O B-protein_substructure I-protein_substructure I-protein_substructure O O O O O B-protein_domain_or_region I-protein_domain_or_region O O B-peptide I-peptide O