PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22892056-5 2012 The functional activity of ABCG2 was evaluated by measuring the efflux of two known ABCG2 substrates: fluorescent mitoxantrone and (14)C-labeled food carcinogen PhIP. Carbon-14 131-136 ATP binding cassette subfamily G member 2 (Junior blood group) Homo sapiens 27-32