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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:B 581
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Accession:CHEBI:83620 term browser browse the term
Definition:A dipeptide obtained from the tetrapeptide Cys-Val-Phe-Met by reduction of the amide carbonyl groups of the Cys and Val residues.
Synonyms:exact_synonym: N-[(2S)-2-{[(2R)-2-amino-3-sulfanylpropyl]amino}-3-methylbutyl]-L-phenylalanyl-L-methionine
 related_synonym: Formula=C22H38N4O3S2;   InChI=1S/C22H38N4O3S2/c1-15(2)20(24-12-17(23)14-30)13-25-19(11-16-7-5-4-6-8-16)21(27)26-18(22(28)29)9-10-31-3/h4-8,15,17-20,24-25,30H,9-14,23H2,1-3H3,(H,26,27)(H,28,29)/t17-,18+,19+,20-/m1/s1;   InChIKey=QISLMXIYRQCLIR-FUMNGEBKSA-N;   SMILES=CSCC[C@H](NC(=O)[C@H](Cc1ccccc1)NC[C@@H](NC[C@@H](N)CS)C(C)C)C(O)=O
 xref: CAS:149759-96-6;   LINCS:LSM-2081
 xref_mesh: MESH:C088459
 xref: PMID:15740898;   Reaxys:8293687

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B 581 term browser
Symbol Object Name Qualifiers Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Nfkb1 nuclear factor kappa B subunit 1 decreases activity ISO B 581 results in decreased activity of NFKB1 protein CTD PMID:12085227 NCBI chr 2:240,773,520...240,890,053
Ensembl chr 2:240,773,456...240,866,689
JBrowse link
G Nfkbia NFKB inhibitor alpha decreases phosphorylation ISO B 581 results in decreased phosphorylation of NFKBIA protein CTD PMID:12085227 NCBI chr 6:76,267,227...76,270,457
Ensembl chr 6:76,267,228...76,270,457
JBrowse link
G Rela RELA proto-oncogene, NF-kB subunit decreases activity ISO B 581 results in decreased activity of RELA protein CTD PMID:12085227 NCBI chr 1:220,992,770...221,003,249
Ensembl chr 1:220,992,770...221,003,249
JBrowse link

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19787
    role 19734
      biological role 19734
        biochemical role 19282
          peptidomimetic 13
            B 581 3
Path 2
Term Annotations click to browse term
  CHEBI ontology 19787
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19672
                    p-block element atom 19672
                      carbon group element atom 19574
                        carbon atom 19563
                          organic molecular entity 19563
                            organic group 18495
                              organic divalent group 18488
                                organodiyl group 18488
                                  carbonyl group 18391
                                    carbonyl compound 18391
                                      carboxylic acid 18061
                                        carboacyl group 17348
                                          univalent carboacyl group 17348
                                            carbamoyl group 17134
                                              carboxamide 17134
                                                peptide 9392
                                                  oligopeptide 1196
                                                    dipeptide 372
                                                      B 581 3
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.