64 WW domain-like
Ligands and drugs
Aggregated over all current member domains of this group. Drug annotations come from DrugDomain; buffers and crystallization additives are excluded from the tables below.
Chemical profile
ClassyFire chemical superclasses of the ligands bound by this X-group's proteins, from DrugDomain annotations.
The raw number of superclasses rises with the number of proteins sampled; the per-20 value compares X-groups at equal depth.
| Superclass | Proteins | Expected | 0.25×observed / expected4× | Ratio | Significance |
|---|---|---|---|---|---|
| Homogeneous metal compounds | 4 | 5.8 | 0.69× | q = 0.47 | |
| Alkaloids and derivatives | 1 | 0.0 | 25× | not tested | |
| Hydrocarbons | 1 | 0.1 | 12× | not tested | |
| Organosulfur compounds | 1 | 0.2 | 4.11× | not tested | |
| Organic nitrogen compounds | 1 | 0.4 | 2.65× | not tested | |
| Homogeneous non-metal compounds | 3 | 2.6 | 1.18× | not tested | |
| Organoheterocyclic compounds | 2 | 1.8 | 1.10× | not tested | |
| Organic acids and derivatives | 2 | 1.8 | 1.09× | not tested | |
| Organic oxygen compounds | 2 | 2.4 | 0.85× | not tested |
Unit: a protein (UniProt accession) with a ligand-binding domain in this X-group, counted once per superclass. Expected counts use each superclass's frequency across all ligand-binding X-groups; significance is Fisher's exact test with Benjamini–Hochberg correction. Buffers and crystallization additives are excluded. ECOD v295.2; the method follows the ECOD 2027 update, whose published figures used a slightly different artifact filter.
DrugBank compounds
| DrugBank | PDB ligand | Name | Domains |
|---|---|---|---|
| DB02042 | 1PG | 2-(2-{2-[2-(2-Methoxy-Ethoxy)-Ethoxy]-Ethoxy}-Ethoxy)-Ethanol | 6 |
| DB00141 | NAG | N-Acetylglucosamine | 3 |
| DB02414 | CHQ | Cyclo(his-pro) | 2 |
| DB04115 | BER | Berberine | 2 |
| DB00536 | GAI | Guanidine | 1 |
| DB01766 | — | Beta-(2-Naphthyl)-Alanine | 1 |
| DB04520 | TYP | (3s,8ar)-3-(4-Hydroxybenzyl)Hexahydropyrrolo[1,2-a]Pyrazine-1,4-Dione | 1 |
| DB06867 | 16P | 3,6,9,12,15,18-HEXAOXAICOSANE | 1 |
Most frequently bound compounds
| PDB ligand | Name | Domains in contact |
|---|---|---|
| 12P | DODECAETHYLENE GLYCOL | 15 |
| CAmetal | CALCIUM ION | 10 |
| UNX | UNKNOWN ATOM OR ION | 8 |
| 1PG | 2-(2-{2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHANOL | 7 |
| NAmetal | SODIUM ION | 7 |
| CL | CHLORIDE ION | 5 |
| MGmetal | MAGNESIUM ION | 4 |
| NAG | 2-acetamido-2-deoxy-beta-D-glucopyranose | 3 |
| 0BF | 8-(2-chloranylethanoyl)-4-[(5-naphthalen-1-ylfuran-2-yl)methyl]-1-thia-4,8-diazaspiro[4.5]decan-3-one | 2 |
| A1AET | 3-(fluorosulfonyl)-5-[(2-oxo-2H-1-benzopyran-3-yl)carbamoyl]benzoic acid | 2 |
| BV0 | 6-azanyl-11-methyl-2-oxidanylidene-7-[[(2R)-oxolan-2-yl]methyl]-N-(pyridin-3-ylmethyl)-1,9-diaza-7-azoniatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),4,6,9,11,13-hexaene-5-carboxamide | 2 |
| FO0 | 6-azanyl-11-methyl-2-oxidanylidene-N-[(1S)-1-pyridin-3-ylethyl]-1,7,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3,5,7,9,11,13-hexaene-5-carboxamide | 2 |
| Kmetal | POTASSIUM ION | 2 |
| TYP | CYCLO-(L-TYROSINE-L-PROLINE) INHIBITOR | 2 |
| 15P | POLYETHYLENE GLYCOL (N=34) | 1 |
| 16P | 3,6,9,12,15,18-HEXAOXAICOSANE | 1 |
| 4N2 | beta-L-idopyranose | 1 |
| A1AEL | 3-(fluorosulfonyl)-5-({[(1S)-2-oxocyclopentyl]methyl}carbamoyl)benzoic acid | 1 |
| A1AEM | 4-[fluoro(dihydroxy)-lambda~4~-sulfanyl]benzoic acid | 1 |
| A1ED2 | 1-methylpyridin-2-one | 1 |