The amount of a NACHT, LRR and PYD domains-containing protein 4 (human) when measured in cerebrospinal fluid. The trait is level of NACHT, LRR and PYD domains-containing protein 4 (human) in cerebrospinal fluid (OBA_2080490, an Ontology of Biological Attributes term). Also known as: cerebrospinal fluid NACHT, LRR and PYD domains-containing protein 4 (human) amount.