PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29152048-3 2017 The position of the nitrogen atom in the aromatic ring has little influence on their inhibition potency, but compounds with a pyridinyl at C2 of the steroid nucleus are more potent CYP1B1 inhibitors than those with a pyridinyl at C3 or C4. Steroids 149-156 cytochrome P450 family 1 subfamily B member 1 Homo sapiens 181-187