Deletion analyses of the pCD41 ORF-A and the use of promoter constructs further mapped an internal functional promoter within the pCD41 sequence that can direct the synthesis of the trans-activating protein .
deletion analyses of the pcd41 orf-a and the use of promoter constructs further mapped an internal functional promoter within the pcd41 sequence that can direct the synthesis of the trans-activating protein .
O O O O B-DNA_molecule B-protein_molecule O O O O B-DNA_family_or_group I-DNA_family_or_group O O O O O O O O B-DNA_molecule O O O O O O O O B-protein_family_or_group I-protein_family_or_group O