Ontology of Biological Attributes term OBA_2057120 (level of prolyl 4-hydroxylase subunit alpha-1 (human) in cerebrospinal fluid) is the amount of a prolyl 4-hydroxylase subunit alpha-1 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid prolyl 4-hydroxylase subunit alpha-1 (human) amount.