About: http://webisa.webdatacommons.org/67928515

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	These expression systems are commonly available from commercial sources and are typified by vectors such as pcDNA3 and pZeoSV (Invitrogen, San Diego, Calif.).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com