Deletions delineated a carboxy-terminal dimerization region containing two repeats of 15 amino acids that show similarity with the dimerization domains of basic-helix-loop-helix proteins .
deletions delineated a carboxy-terminal dimerization region containing two repeats of 15 amino acids that show similarity with the dimerization domains of basic-helix-loop-helix proteins .
O O O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O O O O B-peptide I-peptide I-peptide O O O O O B-protein_domain_or_region I-protein_domain_or_region O B-protein_family_or_group I-protein_family_or_group O