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).
This term is obsolete.
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Definition:
The total amount of immunoglobulin E (IgE), one of the five classes of antibodies produced by the body which is concentrated in the lungs, skin, and mucous membranes and, as a primary defense against environmental antigens, can trigger anaphylactic hypersensitivity, in a specified volume of serum, the clear liquid that separates from blood after it has clotted completely, i.e. blood plasma from which fibrinogen has been removed.