About: http://webisa.webdatacommons.org/223435702

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Ceramide is generated from the major membrane sphingolipid sphingomyelin by acid or neutral sphingomyelinases (A- or N-SMases), enzymes that are activated in response to TNF and other cytokines (for review see reference 9).
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov