| Functional Category | Proteins |
| 01 METABOLISM | 3399 |
| 02 ENERGY | 315 |
| 10 CELL CYCLE AND DNA PROCESSING | 2378 |
| 11 TRANSCRIPTION | 2255 |
| 12 PROTEIN SYNTHESIS | 379 |
| 14 PROTEIN FATE (folding, modification, destination) | 2503 |
| 16 PROTEIN WITH BINDING FUNCTION OR COFACTOR REQUIREMENT (structural or catalytic) | 9713 |
| 18 REGULATION OF METABOLISM AND PROTEIN FUNCTION | 1460 |
| 20 CELLULAR TRANSPORT, TRANSPORT FACILITIES AND TRANSPORT ROUTES | 2356 |
| 30 CELLULAR COMMUNICATION/SIGNAL TRANSDUCTION MECHANISM | 4165 |
| 32 CELL RESCUE, DEFENSE AND VIRULENCE | 628 |
| 34 INTERACTION WITH THE ENVIRONMENT | 1895 |
| 36 SYSTEMIC INTERACTION WITH THE ENVIRONMENT | 2225 |
| 38 TRANSPOSABLE ELEMENTS, VIRAL AND PLASMID PROTEINS | 11 |
| 40 CELL FATE | 1348 |
| 41 DEVELOPMENT (Systemic) | 1734 |
| 42 BIOGENESIS OF CELLULAR COMPONENTS | 2413 |
| 43 CELL TYPE DIFFERENTIATION | 1142 |
| 45 TISSUE DIFFERENTIATION | 746 |
| 47 ORGAN DIFFERENTIATION | 1049 |
| 70 SUBCELLULAR LOCALIZATION | 8985 |
| 73 CELL TYPE LOCALIZATION | 97 |
| 75 TISSUE LOCALIZATION | 91 |
| 77 ORGAN LOCALIZATION | 26 |
| 99 UNCLASSIFIED PROTEINS | 2 |