PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12754701-4 2003 The cofactor is an unstable reduced pterin with a unique four-carbon side chain, synthesized by a complex pathway that requires the products of at least four different genes (MOCS1, MOCS2, MOCS3, and GEPH). Pterins 36-42 gephyrin Homo sapiens 200-204 15159566-7 2004 The close structural homology to MogA and the gephyrin and Cnx1 domains suggests that MoaB may bind a hitherto unidentified pterin compound, possibly an intermediate in molybdopterin biosynthesis. Pterins 124-130 gephyrin Homo sapiens 46-54