SPARQL | HTML5 RDFa and Microdata document
http://rdf.wikipathways.org/Pathway/WP4686_r128283/Comment/d812483325e0da51b7b34bcda93493d2
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://vocabularies.wikipathways.org/gpml#Comment
http://purl.org/dc/terms/isPartOf
http://rdf.wikipathways.org/Pathway/WP4686_r128283/DataNode/e1b73
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AKA S-2-carboxypropyl-cysteine; annotated based on closest match in PubChem compound (carboxypropyl-cysteine, which doesn't specifiy the location and orientation of the carboxypropyl group).
http://rdf.wikipathways.org/Pathway/WP4686_r128283/DataNode/e1b73
http://vocabularies.wikipathways.org/gpml#hasComment
http://rdf.wikipathways.org/Pathway/WP4686_r128283/Comment/d812483325e0da51b7b34bcda93493d2