In contrast , this receptor mutant showed low levels of xenobiotic response element-binding activity , indicating that the PAS domain may be important for DNA-binding affinity and/or specificity of the receptor .
in contrast , this receptor mutant showed low levels of xenobiotic response element-binding activity , indicating that the pas domain may be important for dna-binding affinity and/or specificity of the receptor .
O O O O O O O O O O O O B-other_name I-other_name O O O O B-protein_domain_or_region I-protein_domain_or_region O O O O B-other_name I-other_name O O O O O O