1.900 Å
X-ray
1996-02-25
| 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 |
|---|---|
| A | 100 % |
| B-Factor: | 12.346 |
|---|---|
| Number of residues: | 37 |
| Including | |
| Standard Amino Acids: | 35 |
| Non Standard Amino Acids: | 0 |
| Water Molecules: | 2 |
| Cofactors: | |
| Metals: | |
| Ligandability | Volume (Å3) |
|---|---|
| 1.238 | 597.375 |
| % Hydrophobic | % Polar |
|---|---|
| 56.50 | 43.50 |
| According to VolSite | |

| HET Code: | FFO |
|---|---|
| Formula: | C20H21N7O7 |
| Molecular weight: | 471.423 g/mol |
| DrugBank ID: | DB11596 |
| Buried Surface Area: | 51.54 % |
| Polar Surface area: | 221.2 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 11 |
| H-Bond Donors: | 5 |
| Rings: | 3 |
| Aromatic rings: | 1 |
| Anionic atoms: | 2 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 1 |
| Rotatable Bonds: | 9 |
| X | Y | Z |
|---|---|---|
| 10.7373 | 34.7906 | 22.4418 |
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 |
| C13 | CB | GLU- 17 | 3.63 | 0 | Hydrophobic |
| NA2 | OD1 | ASP- 27 | 2.78 | 163.29 | H-Bond (Ligand Donor) |
| NA2 | OD2 | ASP- 27 | 3.38 | 130.94 | H-Bond (Ligand Donor) |
| N3 | OD2 | ASP- 27 | 2.59 | 169.88 | H-Bond (Ligand Donor) |
| CB | CB | LEU- 28 | 4.41 | 0 | Hydrophobic |
| C11 | CD2 | LEU- 28 | 4.22 | 0 | Hydrophobic |
| C9 | CE2 | PHE- 31 | 3.85 | 0 | Hydrophobic |
| C16 | CE1 | PHE- 31 | 3.36 | 0 | Hydrophobic |
| CB | CD | LYS- 32 | 4.37 | 0 | Hydrophobic |
| C14 | CD1 | ILE- 50 | 4.18 | 0 | Hydrophobic |
| C13 | CG1 | ILE- 50 | 3.88 | 0 | Hydrophobic |
| C16 | CD2 | LEU- 54 | 4.28 | 0 | Hydrophobic |
| O1 | CZ | ARG- 57 | 3.79 | 0 | Ionic (Protein Cationic) |
| O2 | CZ | ARG- 57 | 3.57 | 0 | Ionic (Protein Cationic) |
| O1 | NH1 | ARG- 57 | 2.87 | 162.7 | H-Bond (Protein Donor) |
| O2 | NH1 | ARG- 57 | 3.39 | 134.11 | H-Bond (Protein Donor) |
| O2 | NH2 | ARG- 57 | 2.89 | 164.06 | H-Bond (Protein Donor) |
| NA2 | O | HOH- 206 | 3.07 | 141.33 | H-Bond (Ligand Donor) |
| O4 | O | HOH- 212 | 3.02 | 179.97 | H-Bond (Protein Donor) |