Ontology of Biological Attributes id OBA_2080121 (level of peroxynitrite isomerase THAP4 (human) in cerebrospinal fluid) is the amount of a peroxynitrite isomerase THAP4 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid peroxynitrite isomerase THAP4 (human) amount.