A compound attribute that is the ratio of amount of 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing], mitochondrial (human) in blood to amount of dual specificity mitogen-activated protein kinase kinase 6 (human) in blood. The trait is Ontology of Biological Attributes term OBA_2054077 (DECR1/MAP2K6 protein level ratio in blood). Also known as: the ratio of amount of 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing], mitochondrial (human) in blood to amount of dual specificity mitogen-activated protein kinase kinase 6 (human) in blood.