Err, could you provide some actual context to your sentence fragment? We don't read minds and answering the question that we might think you're posing rather than the one you actually intended to pose just wastes everyone's time.

Sorry Devon. . For inconvenient. . I just want to know , how to use kegg server for the comparative analysis between host metabolic pathway and pathogen metabolic pathway.. to know the uncommon genes between them.. which help in identification of drug potential for the disease. . Let say for tuberculosis. . N comparative between human and mycobacteria metabolic pathway