Computer Retrieval of Information on Scientific Projects Thesaurus Protein Modification Ontology Source
http://purl.bioontology.org/ontology/CSP/2828-5087 http://purl.obolibrary.org/obo/MOD_01064 LOOM
http://purl.bioontology.org/ontology/CSP/2165-6564 http://purl.obolibrary.org/obo/MOD_00412 LOOM