A compound attribute that is the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of MANSC domain-containing protein 1 (human) in blood. The trait is CLEC4D/MANSC1 protein level ratio in blood (OBA_2054988, an Ontology of Biological Attributes id). Also known as: the ratio of amount of C-type lectin domain family 4 member D (human) in blood to amount of MANSC domain-containing protein 1 (human) in blood.