PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16321358-2 2006 The imidazole moiety of HBP anchors the compound in the P450(Cam) active site by coordination of the heme iron, thereby insuring that covalent modification occurs in the active site. Iron 106-110 calmodulin 3 Homo sapiens 56-65