Ontology of Biological Attributes term OBA_2057173 (level of serine/threonine-protein kinase B-raf (human) in cerebrospinal fluid) is the amount of a serine/threonine-protein kinase B-raf (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid serine/threonine-protein kinase B-raf (human) amount.