tokens: Transient chloramphenicol acetyltransferase assay revealed that the region containing E2F binding site had a strong promoter activity , and introduction of the mutation at the E2F binding site resulted in a significant loss of the activity .
folded_tokens: transient chloramphenicol acetyltransferase assay revealed that the region containing e2f binding site had a strong promoter activity , and introduction of the mutation at the e2f binding site resulted in a significant loss of the activity .
labels: B-other_name B-protein_molecule I-protein_molecule O O O O O O B-protein_molecule O O O O O B-other_name I-other_name O O O O O B-other_name O O B-protein_molecule O O O O O O O O O O O