<http://webisa.webdatacommons.org/prov/24652652> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/336497636> . <http://webisa.webdatacommons.org/prov/219202718> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/336497636> . <http://webisa.webdatacommons.org/336497636> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/346543790> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/336497636> . <http://webisa.webdatacommons.org/336497636> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/336497636> <http://www.w3.org/ns/prov#value> "Especially useful protein substrates are serum albumins, keyhole limpet hemocyanin, immunoglobulin molecules, thyroglobulin, ovalbumin, tetanus toxoid, and other proteins well known to those of skill in the art." . <http://webisa.webdatacommons.org/prov/444225472> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/336497636> .