Ontology of Biological Attributes term OBA_2080619 (level of mitogen-activated protein kinase kinase kinase 3 (human) in cerebrospinal fluid) is the amount of a mitogen-activated protein kinase kinase kinase 3 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid mitogen-activated protein kinase kinase kinase 3 (human) amount.