About: http://webisa.webdatacommons.org/217086261

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	For instance, a divalent ion, such as calcium may be used to facilitate the reaction, and at some point after, zinc ion may be introduced to the reaction (ions such as zinc can be inhibitory to enzyme function).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com