A compound attribute that is the ratio of amount of ataxin-10 (human) in blood to amount of phosphoribosyltransferase domain-containing protein 1 (human) in blood. The trait is Ontology of Biological Attributes identifier OBA_2053937 (ATXN10/PRTFDC1 protein level ratio in blood). Also known as: the ratio of amount of ataxin-10 (human) in blood to amount of phosphoribosyltransferase domain-containing protein 1 (human) in blood.