In CAT reporter constructions no appreciable level of CAT activity was supported by the beta globin promoter , and only low level activity by the delta promoter .
in cat reporter constructions no appreciable level of cat activity was supported by the beta globin promoter , and only low level activity by the delta promoter .
O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O