PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9691465-4 1998 The long-chain C16-ceramide induced lateral phase separation of the bilayers into gel and liquid crystalline domains and activated PL-A2, as does natural ceramide (Huang et al. N-palmitoylsphingosine 15-27 phospholipase A2 group IB Homo sapiens 131-136