The amount of a serine/threonine-protein phosphatase PP1-gamma catalytic subunit (human) when measured in cerebrospinal fluid. The trait is level of serine/threonine-protein phosphatase PP1-gamma catalytic subunit (human) in cerebrospinal fluid (OBA_2057737). Also known as: cerebrospinal fluid serine/threonine-protein phosphatase PP1-gamma catalytic subunit (human) amount.