A compound attribute that is the ratio of amount of phosphoribosyltransferase domain-containing protein 1 (human) in blood to amount of serine/threonine-protein kinase 24 (human) in blood. The trait is OBA_2053466 (PRTFDC1/STK24 protein level ratio in blood). Also known as: the ratio of amount of phosphoribosyltransferase domain-containing protein 1 (human) in blood to amount of serine/threonine-protein kinase 24 (human) in blood.