PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9525346-9 1998 Assay of VDR levels by L-1-tosylamido-2-phenylethyl chloromethyl ketone-3H-1,25(OH)2D3 exchange assay ruled out differences in endogenous 1,25(OH)2D3 occupancy as the basis for the observed differences in VDR regulation. Tosylphenylalanyl Chloromethyl Ketone 23-71 vitamin D receptor Rattus norvegicus 9-12