280 Ribonuclease Rh-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 |
|---|---|---|---|---|---|
| Organic oxygen compounds | 5 | 1.4 | 3.64× | not tested | |
| Nucleosides, nucleotides, and analogues | 6 | 1.9 | 3.15× | not tested | |
| Organoheterocyclic compounds | 1 | 1.1 | 0.94× | not tested | |
| Homogeneous metal compounds | 3 | 3.4 | 0.89× | 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 |
|---|---|---|---|
| DB00141 | NAG | N-Acetylglucosamine | 21 |
| DB03685 | U5P | Uridine monophosphate | 6 |
| DB01972 | 5GP | Guanosine-5'-Monophosphate | 5 |
| DB03403 | C5P | Cytidine-5'-Monophosphate | 2 |
| DB00131 | AMP | Adenosine phosphate | 1 |
| DB02714 | U3P | 3'-Uridinemonophosphate | 1 |
| DB03419 | URA | Uracil | 1 |
Most frequently bound compounds
| PDB ligand | Name | Domains in contact |
|---|---|---|
| NAG | 2-acetamido-2-deoxy-beta-D-glucopyranose | 20 |
| 5GP | GUANOSINE-5'-MONOPHOSPHATE | 5 |
| U5P | URIDINE-5'-MONOPHOSPHATE | 5 |
| CAmetal | CALCIUM ION | 4 |
| U2P | PHOSPHORIC ACID MONO-[2-(2,4-DIOXO-3,4-DIHYDRO-2H-PYRIMIDIN-1-YL)-4-HYDROXY-5-HYDROXYMETHYL-TETRAHYDRO-FURAN-3-YL]ESTER | 4 |
| C5P | CYTIDINE-5'-MONOPHOSPHATE | 2 |
| JKM | 1-[(2S,3aS,4S,6R,6aR)-2-hydroxy-6-(hydroxymethyl)-2-oxidotetrahydrofuro[3,4-d][1,3,2]dioxaphosphol-4-yl]pyrimidine-2,4(1H,3H)-dione | 2 |
| MNmetal | MANGANESE (II) ION | 2 |
| AMP | ADENOSINE MONOPHOSPHATE | 1 |
| CSQ | O-[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-4-hydroxy-2-(hydroxymethyl)tetrahydrofuran-3-yl] O-{[(2R,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl]methyl} hydrogen (R)-phosphorothioate | 1 |
| CSV | O-[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-4-hydroxy-2-(hydroxymethyl)tetrahydrofuran-3-yl] O-{[(2R,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl]methyl} hydrogen (S)-phosphorothioate | 1 |
| D3Z | 1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1H,3H)-dione | 1 |
| GPG | GUANYLYL-2',5'-PHOSPHOGUANOSINE | 1 |
| U3P | 3'-URIDINEMONOPHOSPHATE | 1 |
| URA | URACIL | 1 |
| ZNmetal | ZINC ION | 1 |