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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:isotopically modified compound
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Accession:CHEBI:139358 term browser browse the term
Definition:Any molecular entity in which the isotopic ratio of nuclides for at least one element deviates measurably from that occurring in nature. The term includes both isotopically substituted compounds (in which essentially all the molecules of the compound have only the indicated nuclide(s) at each designated position) and isotopically labeled compounds (a formal mixture of an isotopically unmodified compound with one or more analogous isotopically substituted compound(s).
Synonyms:related_synonym: isotopically modified compounds

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2-deoxy-2-((18)F)fluoro-D-glucose term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Slc2a1 solute carrier family 2 member 1 multiple interactions
affects uptake
ISO [MRK 003 results in decreased expression of SLC2A1 protein] which results in decreased uptake of Fluorodeoxyglucose F18
SLC2A1 mRNA affects the uptake of Fluorodeoxyglucose F18
CTD PMID:16595493 PMID:20197467 NCBI chr 5:132,717,196...132,745,416
Ensembl chr 5:132,717,196...132,745,416
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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20056
    chemical entity 20055
      molecular entity 20054
        isotopically modified compound 1
          ((18)O)water 0
          ((201)Tl)thallium monochloride 0
          (11)C-modified compound + 0
          (13)C-modified compound + 0
          (13)N-modified compound + 0
          (14)C-modified compound + 0
          (15)N-modified compound + 0
          (18)F radiopharmaceutical + 1
          (223)RaCl2 0
          chlormerodrin ((197)Hg) 0
          chlormerodrin ((203)Hg) 0
          deuterated compound + 0
          sodium 2-((125)I)iodohippurate 0
          sodium 2-((131)I)iodohippurate 0
          tritiated compound + 0
paths to the root