The amount of a putative uncharacterized protein PKD1L1-AS1 (human) when measured in cerebrospinal fluid. The trait is level of putative uncharacterized protein PKD1L1-AS1 (human) in cerebrospinal fluid (Ontology of Biological Attributes term OBA_2081012). Also known as: cerebrospinal fluid putative uncharacterized protein PKD1L1-AS1 (human) amount.