Ontology of Biological Attributes id OBA_2054545 (MPIG6B/SNAP23 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of megakaryocyte and platelet inhibitory receptor G6b (human) in blood to amount of synaptosomal-associated protein 23 (human) in blood. Also known as: the ratio of amount of megakaryocyte and platelet inhibitory receptor G6b (human) in blood to amount of synaptosomal-associated protein 23 (human) in blood.