| ID | Brite hierarchy | Last update |
|---|
| 00001 | KEGG Orthology (KO) | 10-3-10 |
| 00002 | KEGG pathway modules | 10-2-18 |
| 00194 | Photosynthesis proteins | 10-3-10 |
| 00199 | Cytochrome P450 | 10-2-12 |
| 00535 | Proteoglycans | 06-3-10 |
| 01000 | Enzymes | 10-3-10 |
| 01001 | Protein kinases | 10-3-3 |
| 01002 | Peptidases | 10-2-24 |
| 01003 | Glycosyltransferases | 09-9-24 |
| 01004 | Lipid biosynthesis proteins | 09-8-10 |
| 01005 | Lipopolysaccharide biosynthesis proteins | 09-12-25 |
| 02000 | Transporters | 10-2-12 |
| 02022 | Two-component system | 10-3-3 |
| 02035 | Bacterial motility proteins | 09-2-5 |
| 02042 | Bacterial toxins | 08-8-26 |
| 02044 | Secretion system | 10-2-19 |
| 03000 | Transcription factors | 10-2-22 |
| 03011 | Ribosome | 05-10-28 |
| 03012 | Translation factors | 09-11-25 |
| 03032 | DNA replication proteins | 08-10-29 |
| 03036 | Chromosome | 09-12-10 |
| 03041 | Spliceosome | 10-2-24 |
| 03110 | Chaperones and folding catalysts | 10-2-5 |
| 03400 | DNA repair and recombination proteins | 10-2-10 |
| 04000 | Receptors and channels | 09-10-16 |
| 04031 | GTP-binding proteins | 07-2-13 |
| 04052 | Cytokines | 10-2-5 |
| 04090 | Cellular antigens | 09-8-21 |
| 04091 | Glycan binding proteins | 10-1-25 |
| 04121 | Ubiquitin system | 10-1-25 |
| 04131 | SNAREs | 10-3-4 |
| 04515 | Cell adhesion molecules (CAMs) | 10-2-5 |
| 04516 | CAM ligands | 10-2-5 |
| 04812 | Cytoskeleton proteins | 09-10-15 |
| 08001 | Compounds with biological roles | 08-10-29 |
| 08002 | Lipids | 09-10-7 |
| 08003 | Phytochemical compounds | 10-2-16 |
| 08004 | Polyketides and nonribosomal peptides | 08-7-7 |
| 08005 | Bioactive peptides | 07-5-30 |
| 08101 | Enzyme ligands | 09-6-11 |
| 08102 | Transporter substrates | 09-6-24 |
| 08103 | Ion channel ligands | 08-5-8 |
| 08104 | GPCR ligands | 07-8-7 |
| 08105 | Cytochrome P450 substrates | 06-2-7 |
| 08106 | Nuclear receptor ligands | 06-9-29 |
| 08201 | Enzymatic reactions | 10-3-10 |
| 08202 | IUBMB reaction hierarchy | 10-2-25 |
| 08203 | Glycosyltransferase reactions | 09-10-6 |
| 08301 | Therapeutic category of drugs in Japan | 10-2-25 |
| 08302 | USP drug classification | 08-7-1 |
| 08303 | Anatomical Therapeutic Chemical (ATC) classification | 10-2-18 |
| 08304 | Traditional Chinese Medicine in Japan | 09-6-3 |
| 08305 | Crude drugs in Japan | 09-12-2 |
| 08306 | Phytochemicals used as drugs | 09-4-20 |
| 08307 | Antiinfectives | 10-1-13 |
| 08311 | Drugs listed in the Japanese Pharmacopoeia | 09-4-27 |
| 08312 | Risk category of Japanese OTC drugs | 09-8-24 |
| 08313 | Classification of Japanese OTC drugs | 09-7-24 |
| 08401 | Pathogens and infectious diseases | 08-3-25 |
| 08402 | Human diseases | 10-3-1 |
| 08403 | ICD-10 disease classification | 10-2-14 |
| 08601 | KEGG organisms | 10-3-9 |
| 08602 | Animal classification | 10-2-24 |
| 08603 | Plant classification | 10-2-16 |
| 08604 | Photosynthetic bacteria | 09-4-2 |
| 08901 | KEGG pathway maps | 10-3-8 |
| 08902 | BRITE functional hierarchies | 10-2-3 |