The activity of A-MYB in B and not T cells was observed when either an artificial construct or the c-MYC promoter was used as a reporter .
the activity of a-myb in b and not t cells was observed when either an artificial construct or the c-myc promoter was used as a reporter .
O O O B-protein_molecule 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 O O O O O O