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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:21557 term browser browse the term
Definition:An L-methionine derivative that is L-methionine in which one of the amine hydrogens is substituted by an acetyl group.
Synonyms:related_synonym: (2S)-2-acetamido-4-(methylsulfanyl)butanoic acid;   AcMet;   Acetyl-L-methionine;   Acetylmethionine;   Formula=C7H13NO3S;   InChI=1S/C7H13NO3S/c1-5(9)8-6(7(10)11)3-4-12-2/h6H,3-4H2,1-2H3,(H,8,9)(H,10,11)/t6-/m0/s1;   InChIKey=XUYPXLNMDZIRQH-LURJTMIESA-N;   Methionamine;   N-Ac-Met;   N-Acetylmethionine;   Nalpha-acetyl-L-methionine;   SMILES=CSCC[C@H](NC(C)=O)C(O)=O
 alt_id: CHEBI:40767
 xref: Beilstein:1725552;   CAS:65-82-7;   DrugBank:DB01646;   HMDB:HMDB0011745;   KEGG:C02712;   MetaCyc:CPD0-2015;   PDBeChem:AME;   PMID:16091934;   PMID:16129491;   PMID:21246718;   PMID:21796695;   PMID:24769178;   PMID:448454;   PMID:7069504;   PMID:7354384;   PMID:845673;   PMID:986424;   Reaxys:1725552;   Reaxys:4744969
 cyclic_relationship: is_conjugate_acid_of CHEBI:71670;   is_enantiomer_of CHEBI:85210

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Path 1
Term Annotations click to browse term
  CHEBI ontology 19816
    role 19764
      application 19426
        pharmaceutical 19301
          drug 19301
            nutraceutical 12621
              N-acetyl-L-methionine 0
                N-acetyl-L-methionyl residue 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19816
    subatomic particle 19814
      composite particle 19814
        hadron 19814
          baryon 19814
            nucleon 19814
              atomic nucleus 19814
                atom 19814
                  main group element atom 19702
                    p-block element atom 19702
                      carbon group element atom 19608
                        carbon atom 19597
                          organic molecular entity 19597
                            organic group 18537
                              organic divalent group 18530
                                organodiyl group 18530
                                  carbonyl group 18436
                                    carbonyl compound 18436
                                      carboxylic acid 18114
                                        monocarboxylic acid 17476
                                          fatty acid 15990
                                            short-chain fatty acid 15674
                                              fatty acid 4:0 7810
                                                butyric acid 6168
                                                  methionine 3432
                                                    methionine derivative 8
                                                      N-acetylmethionine 0
                                                        N-acetyl-L-methionine 0
                                                          N-acetyl-L-methionyl residue 0
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