PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21664247-3 2011 PTH enhances vitamin D hydroxylation on carbon 1 in kidney cells thereby allowing the systemic release of 1-25-dihydroxy-vitamin D, which represents the fully active hormone. 1,25-dihydroxyvitamin D 106-130 parathyroid hormone Homo sapiens 0-3