The amino terminus contains an unusual repeat of 38 consecutive glutamine residues and an X-Thr-Pro repeat .
the amino terminus contains an unusual repeat of 38 consecutive glutamine residues and an x-thr-pro repeat .
O B-protein_domain_or_region I-protein_domain_or_region O O O O O B-peptide I-peptide B-amino_acid_monomer I-amino_acid_monomer O O B-protein_substructure I-protein_substructure O