1.580 Å
X-ray
2005-08-17
| Name: | Thiopurine S-methyltransferase |
|---|---|
| ID: | TPMT_HUMAN |
| AC: | P51580 |
| Organism: | Homo sapiens |
| Reign: | Eukaryota |
| TaxID: | 9606 |
| EC Number: | 2.1.1.67 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| A | 100 % |
| B-Factor: | 13.651 |
|---|---|
| Number of residues: | 38 |
| Including | |
| Standard Amino Acids: | 34 |
| Non Standard Amino Acids: | 0 |
| Water Molecules: | 4 |
| Cofactors: | |
| Metals: | |
| Ligandability | Volume (Å3) |
|---|---|
| 0.854 | 637.875 |
| % Hydrophobic | % Polar |
|---|---|
| 52.38 | 47.62 |
| According to VolSite | |

| HET Code: | SAH |
|---|---|
| Formula: | C14H20N6O5S |
| Molecular weight: | 384.411 g/mol |
| DrugBank ID: | DB01752 |
| Buried Surface Area: | 73.81 % |
| Polar Surface area: | 212.38 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 10 |
| H-Bond Donors: | 4 |
| Rings: | 3 |
| Aromatic rings: | 2 |
| Anionic atoms: | 1 |
| Cationic atoms: | 1 |
| Rule of Five Violation: | 1 |
| Rotatable Bonds: | 7 |
| X | Y | Z |
|---|---|---|
| 19.8933 | 10.3956 | 14.0483 |
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 |
| C5' | CZ3 | TRP- 29 | 3.97 | 0 | Hydrophobic |
| C2' | CE3 | TRP- 29 | 3.5 | 0 | Hydrophobic |
| O3' | NE1 | TRP- 33 | 2.84 | 145.61 | H-Bond (Protein Donor) |
| O2' | NE1 | TRP- 33 | 3.31 | 133.04 | H-Bond (Protein Donor) |
| SD | CD1 | PHE- 40 | 3.56 | 0 | Hydrophobic |
| C3' | CZ | PHE- 40 | 4.43 | 0 | Hydrophobic |
| CG | CD1 | PHE- 40 | 3.77 | 0 | Hydrophobic |
| N | O | LEU- 69 | 2.76 | 144.38 | H-Bond (Ligand Donor) |
| C1' | CG | LEU- 69 | 3.99 | 0 | Hydrophobic |
| C4' | CB | LEU- 69 | 4.02 | 0 | Hydrophobic |
| O3' | OE2 | GLU- 90 | 3.21 | 124.34 | H-Bond (Ligand Donor) |
| O3' | OE1 | GLU- 90 | 2.69 | 175.31 | H-Bond (Ligand Donor) |
| O2' | OE2 | GLU- 90 | 2.66 | 149.64 | H-Bond (Ligand Donor) |
| N3 | N | ILE- 91 | 3.19 | 144.73 | H-Bond (Protein Donor) |
| C1' | CG2 | ILE- 91 | 4.33 | 0 | Hydrophobic |
| N6 | OG | SER- 134 | 3.1 | 153.04 | H-Bond (Ligand Donor) |
| N1 | N | ILE- 135 | 2.96 | 155.08 | H-Bond (Protein Donor) |
| N | O | ARG- 152 | 2.82 | 144.8 | H-Bond (Ligand Donor) |
| OXT | CZ | ARG- 152 | 3.9 | 0 | Ionic (Protein Cationic) |
| OXT | NH2 | ARG- 152 | 2.88 | 157.4 | H-Bond (Protein Donor) |
| C5' | CB | ALA- 157 | 3.79 | 0 | Hydrophobic |
| O | O | HOH- 2036 | 2.87 | 179.98 | H-Bond (Protein Donor) |