The amount of a ATP synthase F(0) complex subunit B1, mitochondrial (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes entry OBA_2057473 (level of ATP synthase F(0) complex subunit B1, mitochondrial (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid ATP synthase F(0) complex subunit B1, mitochondrial (human) amount.