FKBP4/SIRT2 protein level ratio in blood (OBA_2055241) can be described as follows. A compound attribute that is the ratio of amount of peptidyl-prolyl cis-trans isomerase FKBP4 (human) in blood to amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood. Also known as: the ratio of amount of peptidyl-prolyl cis-trans isomerase FKBP4 (human) in blood to amount of NAD-dependent protein deacetylase sirtuin-2 (human) in blood.