Ontology of Biological Attributes id OBA_2057682 (level of serine hydroxymethyltransferase, mitochondrial (human) in cerebrospinal fluid) is the amount of a serine hydroxymethyltransferase, mitochondrial (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid serine hydroxymethyltransferase, mitochondrial (human) amount.