1.220 Å
X-ray
2005-03-08
| Name: | Inositol-tetrakisphosphate 1-kinase |
|---|---|
| ID: | ITPK1_ENTHI |
| AC: | Q9XYQ1 |
| Organism: | Entamoeba histolytica |
| Reign: | Eukaryota |
| TaxID: | 5759 |
| EC Number: | 2.7.1.134 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| X | 100 % |
| B-Factor: | 10.048 |
|---|---|
| Number of residues: | 38 |
| Including | |
| Standard Amino Acids: | 31 |
| Non Standard Amino Acids: | 3 |
| Water Molecules: | 4 |
| Cofactors: | |
| Metals: | MG MG |
| Ligandability | Volume (Å3) |
|---|---|
| 0.611 | 826.875 |
| % Hydrophobic | % Polar |
|---|---|
| 37.96 | 62.04 |
| According to VolSite | |

| HET Code: | ACP |
|---|---|
| Formula: | C11H14N5O12P3 |
| Molecular weight: | 501.176 g/mol |
| DrugBank ID: | DB03909 |
| Buried Surface Area: | 74.56 % |
| Polar Surface area: | 310.64 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 16 |
| H-Bond Donors: | 3 |
| Rings: | 3 |
| Aromatic rings: | 2 |
| Anionic atoms: | 4 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 2 |
| Rotatable Bonds: | 8 |
| X | Y | Z |
|---|---|---|
| 19.6824 | 2.23626 | 5.38955 |
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 |
| O1B | NH2 | ARG- 94 | 2.92 | 150.37 | H-Bond (Protein Donor) |
| O1A | NZ | LYS- 136 | 2.74 | 170.65 | H-Bond (Protein Donor) |
| N7 | NZ | LYS- 136 | 3.03 | 139.58 | H-Bond (Protein Donor) |
| O1A | NZ | LYS- 136 | 2.74 | 0 | Ionic (Protein Cationic) |
| C5' | CE | MET- 149 | 4.13 | 0 | Hydrophobic |
| N6 | OE1 | GLN- 168 | 2.92 | 175.93 | H-Bond (Ligand Donor) |
| N6 | O | HIS- 169 | 2.95 | 148.49 | H-Bond (Ligand Donor) |
| N1 | N | ILE- 171 | 2.98 | 174.63 | H-Bond (Protein Donor) |
| C2' | CD1 | ILE- 177 | 3.94 | 0 | Hydrophobic |
| O2G | NZ | LYS- 179 | 3.88 | 0 | Ionic (Protein Cationic) |
| O2' | OG | SER- 194 | 2.59 | 152.74 | H-Bond (Protein Donor) |
| C2' | CG | LEU- 195 | 4.37 | 0 | Hydrophobic |
| C1' | CD1 | LEU- 195 | 3.54 | 0 | Hydrophobic |
| C4' | CZ | PHE- 208 | 4.32 | 0 | Hydrophobic |
| C5' | CB | ASN- 210 | 4.13 | 0 | Hydrophobic |
| O2G | ND2 | ASN- 291 | 3.21 | 133.22 | H-Bond (Protein Donor) |
| O2G | MG | MG- 1295 | 2.18 | 0 | Metal Acceptor |
| O2A | MG | MG- 1295 | 2.15 | 0 | Metal Acceptor |
| O1G | MG | MG- 1296 | 2.08 | 0 | Metal Acceptor |
| O1B | MG | MG- 1296 | 1.95 | 0 | Metal Acceptor |
| O1A | O | HOH- 1482 | 2.74 | 154.85 | H-Bond (Protein Donor) |