Pathway (1)   
   KEGG PATHWAY (1)   
Chemical substance (20)   
   PubChem (1)   
   ChEBI (1)   
   3DMET (1)   
   HMDB (1)   
   MASSBANK (14)   
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   PDB-CCD (1)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG REACTION (1)   
Gene (644)   
   KEGG GENES (644)   
All databases (667)   

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