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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:40646 term browser browse the term
Definition:An organic anion that is a borate diester derived from a furanose and acts a universal signal molecule mediating intra- and interspecies communication among bacteria.
Synonyms:exact_synonym: dihydroxy[(2S,3R,4S)-2-methyldihydrofuran-2,3,3,4(2H)-tetrolato(2-)-kappa(2)O(2),O(3)]borate(1-)
 related_synonym: (3aS,6S,6aR)-2,2,6,6a-tetrahydroxy-3a-methyltetrahydrofuro[3,2-d][1,3,2]dioxaborolan-2-uide;   AI-2;   Formula=C5H10BO7;   InChI=1S/C5H10BO7/c1-4-5(8,3(7)2-11-4)13-6(9,10)12-4/h3,7-10H,2H2,1H3/q-1/t3-,4+,5+/m0/s1;   InChIKey=ACKRRKSNOOISSG-VPENINKCSA-N;   SMILES=C[C@]12OC[C@H](O)[C@@]1(O)O[B-](O)(O)O2
 xref: KEGG:C16421;   PDBeChem:AI2;   PMID:23078586;   PMID:23305926;   PMID:23649272;   PMID:24026770;   PMID:24324385;   PMID:24370626;   PMID:24491837;   PMID:24871429;   PMID:25081571;   PMID:25101248;   Reaxys:23834806

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19770
    chemical entity 19770
      molecular entity 19768
        ion 15934
          anion 14953
            organic anion 3032
              autoinducer-2 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19770
    subatomic particle 19768
      composite particle 19768
        hadron 19768
          baryon 19768
            nucleon 19768
              atomic nucleus 19768
                atom 19768
                  main group element atom 19662
                    p-block element atom 19662
                      p-block molecular entity 19662
                        carbon group molecular entity 19580
                          organic molecular entity 19571
                            organic ion 8447
                              organic anion 3032
                                autoinducer-2 0
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