About: http://webisa.webdatacommons.org/247283860

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	Typically, the substrate is labeled radioactively with isotopes such as 125I or 32P, or non-radioactively labeled with biotin, digoxygenin, or a fluorophore.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com