Elements necessary for the steroid hormone 1 alpha , 25-dihydroxyvitamin D3 ( 1 alpha , 25- ( OH ) 2D3 ) to induce a biological response include the presence of specific intracellular receptors ( vitamin D3 receptors ( VDR ) ) and modulation of gene expression via hormone-activated receptor binding to regulatory regions of target genes .
elements necessary for the steroid hormone 1 alpha , 25-dihydroxyvitamin d3 ( 1 alpha , 25- ( oh ) 2d3 ) to induce a biological response include the presence of specific intracellular receptors ( vitamin d3 receptors ( vdr ) ) and modulation of gene expression via hormone-activated receptor binding to regulatory regions of target genes .
O O O O O O B-lipid I-lipid I-lipid I-lipid I-lipid O B-lipid I-lipid I-lipid I-lipid I-lipid I-lipid I-lipid I-lipid O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O O O O B-other_name I-other_name O O O O O B-protein_domain_or_region I-protein_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region O