1.870 Å
X-ray
2005-06-08
| Name: | DNA topoisomerase 2-alpha |
|---|---|
| ID: | TOP2A_HUMAN |
| AC: | P11388 |
| Organism: | Homo sapiens |
| Reign: | Eukaryota |
| TaxID: | 9606 |
| EC Number: | 5.99.1.3 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| A | 5 % |
| B | 95 % |
| B-Factor: | 26.519 |
|---|---|
| Number of residues: | 42 |
| Including | |
| Standard Amino Acids: | 39 |
| Non Standard Amino Acids: | 1 |
| Water Molecules: | 2 |
| Cofactors: | |
| Metals: | MG |
| Ligandability | Volume (Å3) |
|---|---|
| 0.807 | 654.750 |
| % Hydrophobic | % Polar |
|---|---|
| 41.24 | 58.76 |
| According to VolSite | |

| HET Code: | ANP |
|---|---|
| Formula: | C10H13N6O12P3 |
| Molecular weight: | 502.164 g/mol |
| DrugBank ID: | - |
| Buried Surface Area: | 79.34 % |
| Polar Surface area: | 322.68 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 16 |
| H-Bond Donors: | 4 |
| Rings: | 3 |
| Aromatic rings: | 2 |
| Anionic atoms: | 4 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 2 |
| Rotatable Bonds: | 8 |
| X | Y | Z |
|---|---|---|
| 64.9369 | 15.1747 | 29.1605 |
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 |
| O1A | ND2 | ASN- 91 | 2.96 | 132.16 | H-Bond (Protein Donor) |
| N6 | OD1 | ASN- 120 | 2.92 | 162.46 | H-Bond (Ligand Donor) |
| C1' | CD1 | ILE- 125 | 4.29 | 0 | Hydrophobic |
| C5' | CB | ILE- 141 | 4.19 | 0 | Hydrophobic |
| C4' | CD1 | ILE- 141 | 3.91 | 0 | Hydrophobic |
| C1' | CD1 | ILE- 141 | 3.49 | 0 | Hydrophobic |
| O2B | OG | SER- 148 | 2.84 | 174.14 | H-Bond (Protein Donor) |
| O3' | N | SER- 149 | 3.29 | 152.12 | H-Bond (Protein Donor) |
| O2' | OG | SER- 149 | 2.65 | 165.45 | H-Bond (Protein Donor) |
| O2B | ND2 | ASN- 150 | 3.19 | 159.4 | H-Bond (Protein Donor) |
| O2G | N | ARG- 162 | 2.78 | 159.21 | H-Bond (Protein Donor) |
| O2G | N | ASN- 163 | 3.09 | 160.05 | H-Bond (Protein Donor) |
| O3G | N | TYR- 165 | 2.68 | 166.47 | H-Bond (Protein Donor) |
| O3G | N | GLY- 166 | 2.93 | 166.89 | H-Bond (Protein Donor) |
| O1A | N | ALA- 167 | 3.48 | 146.09 | H-Bond (Protein Donor) |
| O2A | N | ALA- 167 | 2.8 | 148.87 | H-Bond (Protein Donor) |
| C5' | CB | ALA- 167 | 4.15 | 0 | Hydrophobic |
| O2A | NZ | LYS- 168 | 2.97 | 155.33 | H-Bond (Protein Donor) |
| O5' | NZ | LYS- 168 | 3.13 | 123.4 | H-Bond (Protein Donor) |
| O2A | NZ | LYS- 168 | 2.97 | 0 | Ionic (Protein Cationic) |
| O3G | NE2 | GLN- 376 | 3.19 | 149.58 | H-Bond (Protein Donor) |
| O1G | NZ | LYS- 378 | 3.69 | 0 | Ionic (Protein Cationic) |
| O2G | NZ | LYS- 378 | 2.6 | 0 | Ionic (Protein Cationic) |
| O2G | NZ | LYS- 378 | 2.6 | 148 | H-Bond (Protein Donor) |
| O1G | MG | MG- 904 | 2.02 | 0 | Metal Acceptor |
| O1B | MG | MG- 904 | 1.96 | 0 | Metal Acceptor |
| O1A | MG | MG- 904 | 2.59 | 0 | Metal Acceptor |
| N1 | O | HOH- 905 | 2.5 | 146.5 | H-Bond (Protein Donor) |