We have employed the ZEBRA /EBV biological system to test whether a heterologous activation domain can substitute for another activation domain ( the ZEBRA domain ) .
we have employed the zebra /ebv biological system to test whether a heterologous activation domain can substitute for another activation domain ( the zebra domain ) .
O O O O B-protein_molecule O O O O O O O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O O O O O O O O B-protein_molecule O O O