an list contains two data.frame named pathway and module.
four columns in each data.frame.
"map0010" or "M00001"
contians how many KOs in this pathway or module
KOs name
the description of this pathway or module
Other data:
CPDlist,
Compound_htable,
GOlist,
KO_htable,
Module_htable,
Pathway_htable,
hsa_kegg_pathway,
mmu_kegg_pathway