Transcriptional activation by this mutant form of membrane-bound DeltaE was approximately equivalent to that produced by intranuclear ICN .
transcriptional activation by this mutant form of membrane-bound deltae was approximately equivalent to that produced by intranuclear icn .
O O O O O O O B-protein_molecule B-protein_molecule O O O O O O O B-protein_domain_or_region B-protein_domain_or_region O