1.850 Å
X-ray
1994-10-26
| Name: | Dihydrofolate reductase |
|---|---|
| ID: | DYR_ECOLI |
| AC: | P0ABQ4 |
| Organism: | Escherichia coli |
| Reign: | Bacteria |
| TaxID: | 83333 |
| EC Number: | 1.5.1.3 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| B | 100 % |
| B-Factor: | 16.404 |
|---|---|
| Number of residues: | 32 |
| Including | |
| Standard Amino Acids: | 30 |
| Non Standard Amino Acids: | 0 |
| Water Molecules: | 2 |
| Cofactors: | |
| Metals: | |
| Ligandability | Volume (Å3) |
|---|---|
| 1.327 | 1245.375 |
| % Hydrophobic | % Polar |
|---|---|
| 41.46 | 58.54 |
| According to VolSite | |

| HET Code: | DDF |
|---|---|
| Formula: | C21H23N5O6 |
| Molecular weight: | 441.437 g/mol |
| DrugBank ID: | DB12769 |
| Buried Surface Area: | 54.24 % |
| Polar Surface area: | 188.86 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 10 |
| H-Bond Donors: | 4 |
| Rings: | 3 |
| Aromatic rings: | 1 |
| Anionic atoms: | 2 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 1 |
| Rotatable Bonds: | 9 |
| X | Y | Z |
|---|---|---|
| 18.342 | 68.4635 | 43.9637 |
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 |
| NA2 | OD2 | ASP- 27 | 3.49 | 131.05 | H-Bond (Ligand Donor) |
| NA2 | OD1 | ASP- 27 | 2.88 | 169.8 | H-Bond (Ligand Donor) |
| N3 | OD2 | ASP- 27 | 2.76 | 171.19 | H-Bond (Ligand Donor) |
| CB | CB | LEU- 28 | 4.24 | 0 | Hydrophobic |
| C11 | CD2 | LEU- 28 | 4.09 | 0 | Hydrophobic |
| C9 | CE2 | PHE- 31 | 4.04 | 0 | Hydrophobic |
| CB | CD | LYS- 32 | 4.28 | 0 | Hydrophobic |
| C13 | CG1 | ILE- 50 | 4.13 | 0 | Hydrophobic |
| C14 | CD1 | ILE- 50 | 4.02 | 0 | Hydrophobic |
| C16 | CD2 | LEU- 54 | 3.96 | 0 | Hydrophobic |
| O1 | NH1 | ARG- 57 | 2.6 | 172.15 | H-Bond (Protein Donor) |
| O1 | NH2 | ARG- 57 | 3.33 | 128.63 | H-Bond (Protein Donor) |
| O2 | NH2 | ARG- 57 | 2.71 | 170.36 | H-Bond (Protein Donor) |
| O1 | CZ | ARG- 57 | 3.42 | 0 | Ionic (Protein Cationic) |
| O2 | CZ | ARG- 57 | 3.66 | 0 | Ionic (Protein Cationic) |
| O4 | O | HOH- 427 | 2.75 | 179.99 | H-Bond (Protein Donor) |
| NA2 | O | HOH- 459 | 2.97 | 135.18 | H-Bond (Ligand Donor) |