KEGG GENOME is a collection of KEGG organisms, which are the organisms with complete genome sequences and each of which is identified by the three- or four-letter organism code, and selected viruses with relevance to diseases. KEGG GENOME is supplemented by MGENOME, a collection of metagenome sequences from environmental samples (ecosystems).
Currently available KEGG organisms are listed in:
KEGG Taxonomy and NCBI Taxonomy
KEGG organisms are organized in a simple hierarchy of taxonomic classification, here called the KEGG taxonomy. KEGG organisms are also shown in the hierarchy of the NCBI taxonomy with the taxonomic ranks in its abbreviated lineage. The ordering of KEGG organisms is identical in both hierarchies because the KEGG taxonomy is created in a manner consistent with the NCBI taxonomy.
- KEGG organisms in the KEGG taxonomy
- KEGG organisms in the NCBI taxonomy (including addendum)
- KEGG viruses in the NCBI taxonomy
The interface below allows mapping of KEGG organisms to the NCBI taxonomy or the KEGG taxonomy according to the three- or four-letter KEGG organism codes.
KEGG Mapping for Genome Comparison and Combination
An organism group may be defined to compare or combine KEGG organisms, other organisms and environmental samples, enabling the analysis of combined pathway maps for the group.
(Genome comparison) hsa eco Homo sapiens (human) vs. Escherichia coli K-12 strain
such as Terpenoid backbone biosynthesis
where green for human, red for E.coli, and split for both
(Host-microbiome relationship) hsa+T30003 Homo sapiens (human) + gut microbiome
such as Global metabolism map
where green for human, red for gut microbiome, and blue for both
(Host-symbiont relationship) T10018+mlo Lotus japonicus (lotus) + Mesorhizobium loti api+buc Acyrthosiphon pisum (pea aphid) + Buchnera aphidicola bmy+wbm Brugia malayi (filaria) + Wolbachia (Host-vector-pathogen relationship) hsa+aga+pfa Homo sapiens (human) + Anopheles gambiae (mosquito) + Plasmodium falciparum
There are predefined organism groups in KEGG, such as shown below:
(Taxonomic group) Vertebrates Vertebrates (defined in KEGG organisms) (Genus-level pangenome) Escherichia Escherichia pangenome (defined in KEGG genus list) (Species-level pangenome) Escherichia coli Escherichia coli pangenome (defined in KEGG species list)
Last updated: May 1, 2021