CarGene: characterisation of sets of genes based on metabolic pathways analysis. 
The great amount of biological information provides scientists with an incomparable framework for testing the results of new algorithms.  Several tools have been developed for analysing gene-enrichment and most of them are Gene Ontology-based tools.  We developed a Kyoto Encyclopedia of Genes and Genomes (Kegg)-based tool that provides a friendly graphical environment for analysing gene-enrichment.  The tool integrates two statistical corrections and simultaneously analysing the information about many groups of genes in both visual and textual manner.  We tested the usefulness of our approach on a previous analysis (Huttenshower et al.).  Furthermore, our tool is freely available (http://www.upo.es/eps/bigs/cargene.html).