A compound attribute that is the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of peptidoglycan recognition protein 1 (human) in blood. The trait is Ontology of Biological Attributes identifier OBA_2054991 (CLEC4D/PGLYRP1 protein level ratio in blood). Also known as: the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of peptidoglycan recognition protein 1 (human) in blood.