proteoglycan metabolic process
http://purl.obolibrary.org/obo/GO_0006029
The chemical reactions and pathways involving proteoglycans, any glycoprotein in which the carbohydrate units are glycosaminoglycans. [ GOC:mah http://openisbn.com/search.php?q=0198506732&isbn=1/ ]
Synonyms: proteoglycan metabolism