The amount of a amino acid transporter heavy chain SLC3A2 (human) when measured in cerebrospinal fluid. The trait is level of amino acid transporter heavy chain SLC3A2 (human) in cerebrospinal fluid (OBA_2056876, an Ontology of Biological Attributes identifier). Also known as: cerebrospinal fluid amino acid transporter heavy chain SLC3A2 (human) amount.