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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:73365 term browser browse the term
Definition:A tetrapeptide composed of L-alanine, two L-leucine units, and an L-histidine joined in sequence.
Synonyms:exact_synonym: L-alanyl-L-leucyl-L-leucyl-L-histidine
 related_synonym: A-L-L-H;   ALLH;   Formula=C21H36N6O5;   InChI=1S/C21H36N6O5/c1-11(2)6-15(25-18(28)13(5)22)19(29)26-16(7-12(3)4)20(30)27-17(21(31)32)8-14-9-23-10-24-14/h9-13,15-17H,6-8,22H2,1-5H3,(H,23,24)(H,25,28)(H,26,29)(H,27,30)(H,31,32)/t13-,15-,16-,17-/m0/s1;   InChIKey=RGDKRCPIFODMHK-HJWJTTGWSA-N;   L-Ala-L-Leu-L-Leu-L-His;   SMILES=CC(C)C[C@H](NC(=O)[C@H](C)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1cnc[nH]1)C(O)=O

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19792
    role 19738
      biological role 19737
        biochemical role 19241
          metabolite 19218
            Ala-Leu-Leu-His 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19792
    subatomic particle 19788
      composite particle 19788
        hadron 19788
          baryon 19788
            nucleon 19788
              atomic nucleus 19788
                atom 19788
                  main group element atom 19675
                    p-block element atom 19675
                      carbon group element atom 19571
                        carbon atom 19560
                          organic molecular entity 19560
                            organic group 18508
                              organic divalent group 18501
                                organodiyl group 18501
                                  carbonyl group 18404
                                    carbonyl compound 18404
                                      carboxylic acid 18079
                                        carboacyl group 17368
                                          univalent carboacyl group 17368
                                            carbamoyl group 17154
                                              carboxamide 17154
                                                peptide 9396
                                                  oligopeptide 1190
                                                    tetrapeptide 22
                                                      Ala-Leu-Leu-His 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.