Ontology of Biological Attributes id OBA_2057025 (level of cytochrome c oxidase subunit 5B, mitochondrial (human) in cerebrospinal fluid) is the amount of a cytochrome c oxidase subunit 5B, mitochondrial (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid cytochrome c oxidase subunit 5B, mitochondrial (human) amount.