The amount of a methionine-R-sulfoxide reductase B2, mitochondrial (human) when measured in cerebrospinal fluid. The trait is level of methionine-R-sulfoxide reductase B2, mitochondrial (human) in cerebrospinal fluid (OBA_2081788). Also known as: cerebrospinal fluid methionine-R-sulfoxide reductase B2, mitochondrial (human) amount.