VDR DNA-binding mutants were unable to either bind to this element in vitro or repress in vivo ; the VDR DNA-binding domain alone , however , bound the element but also could not repress IL-2 expression .
vdr dna-binding mutants were unable to either bind to this element in vitro or repress in vivo ; the vdr dna-binding domain alone , however , bound the element but also could not repress il-2 expression .
B-protein_family_or_group O O O O O O O O O O O O O O O O O O B-protein_family_or_group O O O O O O O O O O O O O O B-protein_molecule O O