In the context of a bZIP domain defective in DNA binding , mutants retaining either of the two transactivation domains of E2A were able to extend cell survival after growth factor deprivation .
in the context of a bzip domain defective in dna binding , mutants retaining either of the two transactivation domains of e2a were able to extend cell survival after growth factor deprivation .
O O O O O B-protein_domain_or_region I-protein_domain_or_region O O O O O O O O O O O B-protein_domain_or_region I-protein_domain_or_region O B-protein_molecule O O O O O O O B-protein_family_or_group I-protein_family_or_group O O