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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 (

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Accession:XCO:0000279 term browser browse the term
Definition:Any of a large and diverse class of organic compounds which are composed only of hydrogen, the element with atomic number 1, and carbon, the element with atomic number 12, which are derived biosynthetically from units of isoprene and which have the general molecular formula (CH2=C(CH3)CH=CH2)n where n is the number of linked isoprene units.

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Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
Q Oia4 Oil induced arthritis QTL 4 IDA RGD PMID:11230175 RGD:62404 NCBI chr10:75,631,887...87,055,282 JBrowse link
Q Oia5 Oil induced arthritis QTL 5 IDA RGD PMID:11230175 RGD:62404 NCBI chr10:87,055,121...107,211,142 JBrowse link
Q Oia6 Oil induced arthritis QTL 6 IDA RGD PMID:11230175 RGD:62404 NCBI chr10:97,010,147...104,670,812 JBrowse link
Q Oia8 Oil induced arthritis QTL 8 IDA RGD PMID:12571866 RGD:629560 NCBI chr 4:138,503,169...173,369,699 JBrowse link

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  experimental condition 2376
    chemical 707
      chemical with specified structure 549
        hydrocarbon 39
          terpene 4
            carbenoxolone 0
            lycopene 0
            squalene 4
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