About: http://webisa.webdatacommons.org/288134446

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 differentiated side chain that comprises a spacer unit and a reactive chemical group, such as amino or hydroxy, can be used for covalent coupling as such or after further chemical modification.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk