The amount of a mitogen-activated protein kinase kinase kinase 11 (human) when measured in cerebrospinal fluid. The trait is level of mitogen-activated protein kinase kinase kinase 11 (human) in cerebrospinal fluid (Ontology of Biological Attributes identifier OBA_2058993). Also known as: cerebrospinal fluid mitogen-activated protein kinase kinase kinase 11 (human) amount.