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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:Pro-Hyp zwitterion
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Accession:CHEBI:133733 term browser browse the term
Definition:A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Pro-Hyp. Major species at pH 7.3.
Synonyms:exact_synonym: (2S,4R)-4-hydroxy-1-[(2S)-pyrrolidin-1-ium-2-carbonyl]pyrrolidine-2-carboxylate
 related_synonym: Formula=C10H16N2O4;   InChI=1S/C10H16N2O4/c13-6-4-8(10(15)16)12(5-6)9(14)7-2-1-3-11-7/h6-8,11,13H,1-5H2,(H,15,16)/t6-,7+,8+/m1/s1;   InChIKey=ONPXCLZMBSJLSP-CSMHCCOUSA-N;   L-Pro-L-Hyp zwitterion;   SMILES=O[C@@H]1C[C@H](N(C1)C(=O)[C@H]2[NH2+]CCC2)C([O-])=O;   pro-hydroxy-pro
 xref: CAS:18684-24-7
 cyclic_relationship: is_tautomer_of CHEBI:74767

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19800
    role 19751
      application 19498
        indicator 8691
          biomarker 6473
            Pro-Hyp zwitterion 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19800
    subatomic particle 19799
      composite particle 19799
        hadron 19799
          baryon 19799
            nucleon 19799
              atomic nucleus 19799
                atom 19799
                  main group element atom 19698
                    main group molecular entity 19698
                      p-block molecular entity 19698
                        carbon group molecular entity 19619
                          organic molecular entity 19609
                            organic molecule 19549
                              dipolar compound 1069
                                zwitterion 1068
                                  peptide zwitterion 0
                                    dipeptide zwitterion 0
                                      Pro-Hyp zwitterion 0
paths to the root