A compound attribute that is the ratio of amount of granzyme A (human) in blood to amount of killer cell immunoglobulin-like receptor 2DL3 (human) in blood. The trait is Ontology of Biological Attributes id OBA_2053119 (GZMA/KIR2DL3 protein level ratio in blood). Also known as: the ratio of amount of granzyme A (human) in blood to amount of killer cell immunoglobulin-like receptor 2DL3 (human) in blood.