Ontology of Biological Attributes id OBA_2080334 (level of carboxymethylenebutenolidase homolog (human) in cerebrospinal fluid) is the amount of a carboxymethylenebutenolidase homolog (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid carboxymethylenebutenolidase homolog (human) amount.