About: http://webisa.webdatacommons.org/280127758

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	Several thousand proteins have been purified in active form on the basis of such characteristics as size, solubility, charge and specific binding affinity.
http://www.w3.org/ns/prov#wasQuotedFrom	molecularstation.com