tokens: Initiation binding repressor [ corrected ] ( IBR ) is a chicken erythrocyte factor ( apparent molecular mass , 70 to 73 kDa ) that binds to the sequences spanning the transcription initiation site of the histone h5 gene , repressing its transcription .
folded_tokens: initiation binding repressor [ corrected ] ( ibr ) is a chicken erythrocyte factor ( apparent molecular mass , 70 to 73 kda ) that binds to the sequences spanning the transcription initiation site of the histone h5 gene , repressing its transcription .
labels: B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O B-protein_molecule O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule I-protein_molecule O O O O B-other_name O