PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20560544-13 2010 CrtM catalyzes the first committed step in biosynthesis of the carotenoid virulence factor staphyloxanthin: the condensation of two FPP molecules to produce a cyclopropane (presqualene diphosphate). cyclopropane 159-171 matrilin 1 Homo sapiens 0-4