AIFM1/SIRT2 protein level ratio in blood (OBA_2053711, an Ontology of Biological Attributes id) can be described as follows. A compound attribute that is the ratio of amount of apoptosis-inducing factor 1, mitochondrial (human) in blood to amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood. Also known as: the ratio of amount of apoptosis-inducing factor 1, mitochondrial (human) in blood to amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood.