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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.

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Accession:CHEBI:29103 term browser browse the term
Definition:A monoatomic monocation obtained from potassium.
Synonyms:exact_synonym: potassium(I) cation
 related_synonym: Formula=K;   InChI=1S/K/q+1;   InChIKey=NPYPAHLBTDXSSS-UHFFFAOYSA-N;   K;   POTASSIUM ION;   Potassium cation;   Potassium(1+) ion;   SMILES=[K+]
 alt_id: CHEBI:26219;   CHEBI:49685;   CHEBI:8345
 xref: CAS:24203-36-9;   Gmelin:15203;   KEGG:C00238;   KEGG:D08403;   PDBeChem:K

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Your selection has 4664 annotated objects. The maximum number of objects that can be shown is 2000. The list is too large to display.

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    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19821
        role 19769
          biological role 19769
            biochemical role 19389
              cofactor 15547
                potassium(1+) 4664
                  potassium salt + 4664
    Path 2
    Term Annotations click to browse term
      CHEBI ontology 19821
        subatomic particle 19819
          composite particle 19819
            hadron 19819
              baryon 19819
                nucleon 19819
                  atomic nucleus 19819
                    atom 19819
                      main group element atom 19716
                        main group molecular entity 19716
                          s-block molecular entity 19502
                            alkali metal molecular entity 10641
                              potassium molecular entity 4664
                                elemental potassium 4664
                                  potassium(1+) 4664
                                    potassium salt + 4664
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