level of E3 SUMO-protein ligase PIAS4 (human) in cerebrospinal fluid (Ontology of Biological Attributes entry OBA_2059773) is the amount of a E3 SUMO-protein ligase PIAS4 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid E3 SUMO-protein ligase PIAS4 (human) amount.