PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
21605625-2	2011	Once generated, ceramide is converted by sphingosine kinase (SphK) 1 and/or 2 to one of its active metabolite sphingosine-1-phosphate (S1P), which in turn signals through G-protein coupled S1P receptors.	Ceramides	16-24	sphingosine kinase 1	Rattus norvegicus	41-68