CA2/DNPH1 protein level ratio in blood (OBA_2055735) can be described as follows. A compound attribute that is the ratio of amount of carbonic anhydrase 2 (human) in blood to amount of 5-hydroxymethyl-dUMP N-hydrolase (human) in blood. Also known as: the ratio of amount of carbonic anhydrase 2 (human) in blood to amount of 5-hydroxymethyl-dUMP N-hydrolase (human) in blood.