The amount of a motor neuron and pancreas homeobox protein 1 (human) when measured in cerebrospinal fluid. The trait is level of motor neuron and pancreas homeobox protein 1 (human) in cerebrospinal fluid (OBA_2057998, an Ontology of Biological Attributes id). Also known as: cerebrospinal fluid motor neuron and pancreas homeobox protein 1 (human) amount.