| ID | Brite hierarchy | Last update |
|---|
| 00001 | KEGG Orthology (KO) | 11-12-15 |
| 00002 | KEGG pathway modules | 11-12-13 |
| 00194 | Photosynthesis proteins | 10-12-20 |
| 00199 | Cytochrome P450 | 11-11-15 |
| 00535 | Proteoglycans | 06-3-10 |
| 01000 | Enzymes | 11-12-16 |
| 01001 | Protein kinases | 11-10-19 |
| 01002 | Peptidases | 11-8-22 |
| 01003 | Glycosyltransferases | 11-10-21 |
| 01004 | Lipid biosynthesis proteins | 11-5-16 |
| 01005 | Lipopolysaccharide biosynthesis proteins | 09-12-25 |
| 01006 | Prenyltransferases | 10-10-25 |
| 01007 | Amino acid related enzymes | 11-12-2 |
| 01008 | Polyketide biosynthesis proteins | 11-12-1 |
| 01020 | Enzyme-linked receptors | 10-8-28 |
| 02000 | Transporters | 11-12-14 |
| 02001 | Solute carrier family | 11-11-24 |
| 02022 | Two-component system | 10-7-6 |
| 02035 | Bacterial motility proteins | 10-7-6 |
| 02042 | Bacterial toxins | 11-11-15 |
| 02044 | Secretion system | 11-10-4 |
| 03000 | Transcription factors | 11-12-13 |
| 03009 | Ribosome biogenesis | 11-11-15 |
| 03011 | Ribosome | 11-5-9 |
| 03012 | Translation factors | 11-8-10 |
| 03016 | Transfer RNA biogenesis | 11-10-13 |
| 03021 | Transcription machinery | 11-12-6 |
| 03032 | DNA replication proteins | 11-6-24 |
| 03036 | Chromosome | 11-10-24 |
| 03041 | Spliceosome | 11-8-9 |
| 03051 | Proteasome | 10-4-14 |
| 03110 | Chaperones and folding catalysts | 11-3-31 |
| 03310 | Nuclear receptors | 10-8-31 |
| 03400 | DNA repair and recombination proteins | 11-12-6 |
| 04030 | G protein-coupled receptors | 11-7-27 |
| 04031 | GTP-binding proteins | 10-8-17 |
| 04040 | Ion channels | 11-11-24 |
| 04050 | Cytokine receptors | 10-9-5 |
| 04052 | Cytokines | 11-3-8 |
| 04090 | Cellular antigens | 10-9-30 |
| 04091 | Glycan binding proteins | 10-1-25 |
| 04121 | Ubiquitin system | 11-12-5 |
| 04131 | SNAREs | 10-6-22 |
| 04515 | Cell adhesion molecules (CAMs) | 10-10-21 |
| 04516 | CAM ligands | 10-10-19 |
| 04812 | Cytoskeleton proteins | 09-10-15 |
| 08001 | Compounds with biological roles | 11-12-8 |
| 08002 | Lipids | 11-10-11 |
| 08003 | Phytochemical compounds | 11-9-1 |
| 08005 | Bioactive peptides | 10-9-13 |
| 08006 | Endocrine disrupting compounds | 10-11-17 |
| 08007 | Pesticides | 11-4-6 |
| 08008 | Carcinogens | 11-6-6 |
| 08201 | Enzymatic reactions | 11-12-14 |
| 08202 | IUBMB reaction hierarchy | 11-11-29 |
| 08203 | Glycosyltransferase reactions | 09-10-6 |
| 08204 | Reaction class | 11-12-16 |
| 08301 | Therapeutic category of drugs in Japan | 11-11-29 |
| 08301_enzyme | Therapeutic category of drugs in Japan + Enzyme | 11-11-29 |
| 08301_target | Therapeutic category of drugs in Japan + Target | 11-11-29 |
| 08302 | USP drug classification | 11-1-6 |
| 08302_enzyme | USP drug classification + Enzyme | 11-1-6 |
| 08302_target | USP drug classification + Target | 11-1-6 |
| 08303 | Anatomical Therapeutic Chemical (ATC) classification | 11-12-1 |
| 08303_enzyme | Anatomical Therapeutic Chemical (ATC) classification + Enzyme | 11-12-1 |
| 08303_target | Anatomical Therapeutic Chemical (ATC) classification + Target | 11-12-1 |
| 08304 | Traditional Chinese Medicine in Japan | 10-7-1 |
| 08305 | Crude drugs | 11-4-8 |
| 08306 | Phytochemicals used as drugs | 09-4-20 |
| 08307 | Antiinfectives | 11-12-1 |
| 08308 | Antineoplastics | 10-12-8 |
| 08310 | Target-based classification of drugs | 11-9-2 |
| 08311 | Drugs listed in the Japanese Pharmacopoeia | 11-4-25 |
| 08312 | Risk category of Japanese OTC drugs | 11-11-17 |
| 08313 | Classification of Japanese OTC drugs | 11-3-31 |
| 08321 | Essential oils | 10-7-23 |
| 08322 | Medicinal herbs | 10-12-9 |
| 08331 | Animal drugs in Japan | 11-2-14 |
| 08401 | Infectious diseases | 11-9-21 |
| 08401_genome | Infectious diseases + Genome | 11-9-21 |
| 08402 | Human diseases | 11-12-9 |
| 08402_gene | Human diseases + Gene | 11-12-9 |
| 08403 | ICD-10 disease classification | 11-9-21 |
| 08410 | ICD-10 International Classification of Diseases | 11-6-6 |
| 08420 | ICD-O-3 International Classification of Diseases for Oncology | 11-7-20 |
| 08430 | Medical dictionary for regulatory activities (MedDRA) | 11-10-11 |
| 08501 | Human organ systems | 11-12-2 |
| 08502 | Human cells | 11-8-3 |
| 08601 | KEGG organisms | 11-12-15 |
| 08602 | Animal classification | 11-9-9 |
| 08603 | Plant classification | 11-6-14 |
| 08604 | Photosynthetic organisms | 10-8-22 |
| 08901 | KEGG pathway maps | 11-11-24 |
| 08902 | BRITE functional hierarchies | 11-12-12 |