The amount of a guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas-1/XLas-2/XLas-3 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes identifier OBA_2081934 (level of guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas-1/XLas-2/XLas-3 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas-1/XLas-2/XLas-3 (human) amount.