About: http://webisa.webdatacommons.org/430871916

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	As you can see here, here and in the picture below (with the groups marked turquoise), most of these groups are deprotonated depending on pH. They act as Br??nsted-Lowry acids.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com