About: http://webisa.webdatacommons.org/425909147

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	When R1 or R2 is an amino acid, the amino acid can be selected from naturally occurring amino acids.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com