About: http://webisa.webdatacommons.org/35050124

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	The peptide is labeled using one or more labeled amino acids (i.e. the label is an actual part of the peptide) or less preferably, labels may be attached after synthesis according to standard methods.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com