About: http://webisa.webdatacommons.org/323465126

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	First, whereas real proteins are constructed from 20 kinds of amino acids (which differ in size, shape, electric charge, affinity for water and other properties), the building blocks of prototeins come in just two flavors.
http://www.w3.org/ns/prov#wasQuotedFrom	americanscientist.org