Pathway (1)   
   KEGG PATHWAY (1)   
Network (5)   
   KEGG NETWORK (5)   
Chemical substance (5)   
   PubChem (1)   
   ChEBI (1)   
   HMDB (1)   
   NIKKAJI (1)   
   PDB-CCD (1)   
Chemical reaction (13)   
   KEGG ENZYME (5)   
   KEGG REACTION (8)   
Gene (4)   
   KEGG GENES (4)   
All databases (28)   

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