A compound attribute that is the ratio of amount of histidine--tRNA ligase, cytoplasmic (human) in blood to amount of leukocyte elastase inhibitor (human) in blood. The trait is HARS1/SERPINB1 protein level ratio in blood (OBA_2053134, an Ontology of Biological Attributes id). Also known as: the ratio of amount of histidine--tRNA ligase, cytoplasmic (human) in blood to amount of leukocyte elastase inhibitor (human) in blood.