A compound attribute that is the ratio of amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood to amount of tight junction-associated protein 1 (human) in blood. The trait is SIRT2/TJAP1 protein level ratio in blood (OBA_2055649). Also known as: the ratio of amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood to amount of tight junction-associated protein 1 (human) in blood.