PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18697520-7 2008 In addition, a methane production enzyme coding gene, i.e. MCR, in a J1 bore immediately bordering the sources in the J site showed the greatest concentration, but it was precipitously decreased in the downgradient direction toward the outer boundary of landfill. Methane 15-22 nuclear receptor subfamily 3 group C member 2 Homo sapiens 59-62