The requirement of another regulatory element called CLE0 , which lies downstream of the -70 GATA site , was also demonstrated .
the requirement of another regulatory element called cle0 , which lies downstream of the -70 gata site , was also demonstrated .
O O O O B-DNA_family_or_group I-DNA_family_or_group O B-DNA_family_or_group O 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