The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
The amount of glucagon, a peptide secreted by pancreatic alpha cells which plays an important role in regulation of blood glucose concentration, ketone metabolism, and other biochemical and physiological processes, in a specified volume of plasma, the fibrinogen-containing fluid portion of the blood in which the particulate components are suspended.