Ontology of Biological Attributes identifier OBA_2080232 (level of protein tyrosine phosphatase type IVA 1 (human) in cerebrospinal fluid) is the amount of a protein tyrosine phosphatase type IVA 1 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid protein tyrosine phosphatase type IVA 1 (human) amount.