A compound attribute that is the ratio of amount of linker for activation of T-cells family member 2 (human) in blood to amount of protein sprouty homolog 2 (human) in blood. The trait is Ontology of Biological Attributes identifier OBA_2054885 (LAT2/SPRY2 protein level ratio in blood). Also known as: the ratio of amount of linker for activation of T-cells family member 2 (human) in blood to amount of protein sprouty homolog 2 (human) in blood.