Ontology of Biological Attributes identifier OBA_2044496 (level of bifunctional methylenetetrahydrofolate dehydrogenase/cyclohydrolase 2, mitochondrial in blood serum) is the amount of a bifunctional methylenetetrahydrofolate dehydrogenase/cyclohydrolase 2, mitochondrial when measured in blood serum. Also known as: blood serum bifunctional methylenetetrahydrofolate dehydrogenase/cyclohydrolase 2, mitochondrial amount.