2.400 Å
X-ray
1996-06-25
| Name: | Carbonic anhydrase 2 |
|---|---|
| ID: | CAH2_HUMAN |
| AC: | P00918 |
| Organism: | Homo sapiens |
| Reign: | Eukaryota |
| TaxID: | 9606 |
| EC Number: | 4.2.1.1 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| A | 100 % |
| B-Factor: | 14.434 |
|---|---|
| Number of residues: | 26 |
| Including | |
| Standard Amino Acids: | 25 |
| Non Standard Amino Acids: | 1 |
| Water Molecules: | 0 |
| Cofactors: | |
| Metals: | ZN |
| Ligandability | Volume (Å3) |
|---|---|
| 0.469 | 327.375 |
| % Hydrophobic | % Polar |
|---|---|
| 49.48 | 50.52 |
| According to VolSite | |

| HET Code: | STB |
|---|---|
| Formula: | C12H20N3O3S2 |
| Molecular weight: | 318.435 g/mol |
| DrugBank ID: | DB04002 |
| Buried Surface Area: | 48.47 % |
| Polar Surface area: | 153.04 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 4 |
| H-Bond Donors: | 4 |
| Rings: | 1 |
| Aromatic rings: | 1 |
| Anionic atoms: | 0 |
| Cationic atoms: | 1 |
| Rule of Five Violation: | 0 |
| Rotatable Bonds: | 8 |
| X | Y | Z |
|---|---|---|
| -3.4085 | 5.7704 | 15.3726 |
Image generated by PoseView
Represent the protein/ligand binding mode, centered on the ligand
Dashed lines represents hydrogen bonds and metal interactions
Green residue labels for amino acids with hydrophobic contacts (green lines) to the ligand
| Ligand | Protein | Interaction | |||
|---|---|---|---|---|---|
| Atom | Atom | Residue | Distance (Å) | Angle (°) | Type |
| C2 | CG1 | VAL- 121 | 4 | 0 | Hydrophobic |
| C3 | CG2 | VAL- 121 | 3.47 | 0 | Hydrophobic |
| C3' | CE2 | PHE- 131 | 4.14 | 0 | Hydrophobic |
| C4 | CD2 | LEU- 198 | 3.54 | 0 | Hydrophobic |
| O1S | N | THR- 199 | 3.47 | 141.88 | H-Bond (Protein Donor) |
| N3S | OG1 | THR- 199 | 3.1 | 138.5 | H-Bond (Ligand Donor) |
| C2' | CG | PRO- 202 | 3.88 | 0 | Hydrophobic |
| S7' | CG | PRO- 202 | 3.74 | 0 | Hydrophobic |
| N3S | ZN | ZN- 262 | 2.46 | 0 | Metal Acceptor |