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).
Measurement of the number of T lymphocytes (T cell) whose function is control or suppression of the T cell mediated immune response. Regulatory T cells are generally distinguished from other classes of lymphocytes on the basis of the presence and/or absence of a number of specific cell surface marker proteins.