level of ribosomal protein S6 kinase alpha-1 (human) in cerebrospinal fluid (Ontology of Biological Attributes identifier OBA_2058912) is the amount of a ribosomal protein S6 kinase alpha-1 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid ribosomal protein S6 kinase alpha-1 (human) amount.