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Table 8 Comparison of pathway data content in MetaCyc and KEGG

From: A systematic comparison of the MetaCyc and KEGG pathway databases

Category MetaCyc KEGG
Pathway classes 490 107
Pathway instances 2142 416
Pathways with comments 2122 51
Mean comment length 2240.6 83.6
DB links per pathway 0.34 0.88
Reactions per pathway 5.73 19.10
  1. KEGG pathway classes were extracted from the MAP and MODULE datasets based on the CLASS attribute. Comment length is measured in number of characters.