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<compound>
  <id type="integer">42139</id>
  <title nil="true"/>
  <common-name>Dynorphin A</common-name>
  <description>Dynorphin A is a compound with the chemical formula C69H116N23O13. Dynorphin A belongs to the polypeptides, a class of organic polymers within the organic compounds. With an average molecular weight of 1,476 g/mol, Dynorphin A is a heavy molecule.

In terms of its biological activity, Dynorphin A acts as an inhibitor of three recorded protein targets. These targets include the Mu-type opioid receptor (OPRM1), the Delta-type opioid receptor (OPRD1), and the Kappa-type opioid receptor (OPRK1).</description>
  <cas>80448-90-4</cas>
  <pubchem-id nil="true"/>
  <chemical-formula>C69H116N23O13</chemical-formula>
  <weight nil="true"/>
  <appearance nil="true"/>
  <melting-point nil="true"/>
  <boiling-point nil="true"/>
  <density nil="true"/>
  <solubility nil="true"/>
  <specific-gravity nil="true"/>
  <flash-point nil="true"/>
  <vapour-pressure nil="true"/>
  <route-of-exposure nil="true"/>
  <target nil="true"/>
  <mechanism-of-toxicity nil="true"/>
  <metabolism nil="true"/>
  <toxicity nil="true"/>
  <lethaldose nil="true"/>
  <carcinogenicity nil="true"/>
  <use-source nil="true"/>
  <min-risk-level nil="true"/>
  <health-effects nil="true"/>
  <symptoms nil="true"/>
  <treatment nil="true"/>
  <created-at type="dateTime">2016-05-27T01:09:39Z</created-at>
  <updated-at type="dateTime">2026-05-14T19:56:04Z</updated-at>
  <interacting-proteins nil="true"/>
  <wikipedia nil="true"/>
  <uniprot-id nil="true"/>
  <kegg-compound-id nil="true"/>
  <omim-id nil="true"/>
  <chebi-id nil="true"/>
  <biocyc-id nil="true"/>
  <ctd-id nil="true"/>
  <stitch-id nil="true"/>
  <drugbank-id>DB16146</drugbank-id>
  <pdb-id nil="true"/>
  <actor-id nil="true"/>
  <organism nil="true"/>
  <export type="boolean">true</export>
  <metabolizing-proteins nil="true"/>
  <transporting-proteins nil="true"/>
  <moldb-smiles>CCC(C)[C@H](NC(=O)[C@@H](CCCNC(N)=N)NC(=O)[C@@H](CCCNC(N)=N)NC(=O)[C@@H](CC(C)C)NC(=O)[C@@H](CC1=CC=CC=C1)NC(=O)CNC(=O)CNC(=O)[C@H](N)CC1=CC=C(O)C=C1)C(=O)N[C@H](CCCNC([NH3+])=N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(N)=O</moldb-smiles>
  <moldb-formula>C69H116N23O13</moldb-formula>
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  <moldb-average-mass type="decimal">1475.8056</moldb-average-mass>
  <moldb-mono-mass type="decimal">1474.912295913</moldb-mono-mass>
  <origin nil="true"/>
  <state nil="true"/>
  <logp>-11</logp>
  <hmdb-id nil="true"/>
  <chembl-id nil="true"/>
  <chemspider-id nil="true"/>
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  <biodb-id nil="true"/>
  <synthesis-reference nil="true"/>
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  <chemdb-id>CHEM041034</chemdb-id>
  <dsstox-id nil="true"/>
  <toxcast-id nil="true"/>
  <stoff-ident-origin nil="true"/>
  <stoff-ident-id nil="true"/>
  <susdat-id nil="true"/>
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  <moldb-refractivity>432.33730000000014</moldb-refractivity>
  <moldb-polarizability>159.40602525389286</moldb-polarizability>
  <moldb-rotatable-bond-count>48</moldb-rotatable-bond-count>
  <moldb-acceptor-count>23</moldb-acceptor-count>
  <moldb-donor-count>23</moldb-donor-count>
  <moldb-pka-strongest-acidic>9.428348253548974</moldb-pka-strongest-acidic>
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  <moldb-physiological-charge>5</moldb-physiological-charge>
  <moldb-number-of-rings>3</moldb-number-of-rings>
  <moldb-alogps-logp>-0.62</moldb-alogps-logp>
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  <moldb-alogps-solubility>1.73e-02 g/l</moldb-alogps-solubility>
  <kingdom>Organic compounds</kingdom>
  <superklass>Organic Polymers</superklass>
  <klass>Polypeptides</klass>
  <subklass nil="true"/>
  <paper-count type="integer">4729</paper-count>
  <sync-id>CED0004491</sync-id>
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  <structure-indexed-at type="dateTime">2026-09-19T04:11:18Z</structure-indexed-at>
</compound>
