The amount of a 26S proteasome non-ATPase regulatory subunit 5 (human) when measured in cerebrospinal fluid. The trait is OBA_2058978 (level of 26S proteasome non-ATPase regulatory subunit 5 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid 26S proteasome non-ATPase regulatory subunit 5 (human) amount.