Ontology of Biological Attributes identifier OBA_2080867 (level of carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1 (human) in cerebrospinal fluid) is the amount of a carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1 (human) amount.