| Content | Number |
| Entries | 16312 |
| Entries with chemical formula | 15740 |
| Entries with molecular structure | 15715 |
| Links to PATHWAY | 5080 |
| Links to REACTION | 6881 |
| Links to ENZYME | 6202 |
| Content | Number |
| Entries | 10979 |
| Entries with class | 7255 |
| Links to PATHWAY | 211 |
| Links to REACTION | 342 |
| Links to ENZYME | 331 |
| Links to KO | 79 |
| Content | Number |
| Entries | 8841 |
| Entries with name | 6346 |
| Links to PATHWAY | 6149 |
| Links to ENZYME | 7577 |
| Links to KO | 4432 |
| Content | Number |
| Entries | 13277 |
| Links to COMPOUND | 13277 |
| Links to REACTION | 13277 |
| Content | Number |
| All entries | 5635 |
| Full EC number entries | 4665 |
Entries with systematic name | 4241 |
Links to PATHWAY | 2550 |
Links to GENES | 2606 |
Links to PDB | |
Links to KO | 2744 |
| Partial EC number entries | 120 |
| Deleted or transferred entries | 850 |
| EC number category | Number of subclasses | Number of sub-subclasses | Number of full EC numbers | PATHWAY | KO | UniProt | PDB |
| EC 1. Oxdoreductases | 23 | 114 | 1288 | 824 | 684 | ||
| EC 2. Transferases | 10 | 34 | 1353 | 769 | 846 | ||
| EC 3. Hydrolases | 13 | 55 | 1194 | 404 | 701 | ||
| EC 4. Lyases | 7 | 16 | 468 | 304 | 266 | ||
| EC 5. Isomerases | 6 | 17 | 205 | 131 | 123 | ||
| EC 6. Ligases | 6 | 11 | 157 | 118 | 124 | ||
| Total | 65 | 247 | 4665 | 2550 | 2744 | 0 |