Table 1. The number of entries in release 19.0 (October 1999) of the LIGAND database.
| Section | Content | Number |
|---|---|---|
| ENZYME | Entries | 3390 |
| Entries with reaction formula in chemical equations | 2906 | |
| Links to KEGG/PATHWAY (metabolic pathways) | 1734 | |
| Links to KEGG/GENES (gene catalogs) | 1099 | |
| Links to OMIM (human genetic disorders) (12) | 469 | |
| Links to PROSITE (proteins sequence motifs) (13) | 977 | |
| COMPOUND | Entries | 5645 |
| Entries with chemical formula | 3755 | |
| Entries with molecular structure | 4768 | |
| Links to ENZYME | 4536 | |
| Links to ENZYME as reactants | 4365 | |
| Links to ENZYME as cofactors | 82 | |
| Links to ENZYME as inhibitors | 154 | |
| Links to ENZYME as effectors | 33 | |
| Links to CAS | 1537 | |
| REACTION | Entries | 5200 |
| Reactions defined in ENZYME | 3084 | |
| Reactions with known enzymes in KEGG/PATHWAY | 3102 | |
| Reactions with unknown enzymes in KEGG/PATHWAY | 303 | |
| Non-enzymatic reactions in KEGG/PATHWAYa | 385 |
aNon-enzymatic reactions include reactions where it is not known whether enzymes are involved in catalysis.