2.500 Å
X-ray
2003-11-11
| Name: | S-adenosylmethionine synthase |
|---|---|
| ID: | METK_ECOLI |
| AC: | P0A817 |
| Organism: | Escherichia coli |
| Reign: | Bacteria |
| TaxID: | 83333 |
| EC Number: | 2.5.1.6 |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| C | 48 % |
| D | 52 % |
| B-Factor: | 16.561 |
|---|---|
| Number of residues: | 48 |
| Including | |
| Standard Amino Acids: | 44 |
| Non Standard Amino Acids: | 3 |
| Water Molecules: | 1 |
| Cofactors: | |
| Metals: | MG K MG |
| Ligandability | Volume (Å3) |
|---|---|
| 0.202 | 448.875 |
| % Hydrophobic | % Polar |
|---|---|
| 51.13 | 48.87 |
| According to VolSite | |

| HET Code: | SAM |
|---|---|
| Formula: | C15H23N6O5S |
| Molecular weight: | 399.445 g/mol |
| DrugBank ID: | DB00118 |
| Buried Surface Area: | 71.87 % |
| Polar Surface area: | 189.77 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 9 |
| H-Bond Donors: | 4 |
| Rings: | 3 |
| Aromatic rings: | 2 |
| Anionic atoms: | 1 |
| Cationic atoms: | 2 |
| Rule of Five Violation: | 1 |
| Rotatable Bonds: | 7 |
| X | Y | Z |
|---|---|---|
| -38.6933 | 28.3501 | -4.77807 |
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 |
| N | OE2 | GLU- 55 | 3.02 | 0 | Ionic (Ligand Cationic) |
| O | NE2 | GLN- 98 | 2.91 | 161.81 | H-Bond (Protein Donor) |
| OXT | NE2 | GLN- 98 | 3.44 | 140.32 | H-Bond (Protein Donor) |
| CB | CD1 | ILE- 102 | 4.03 | 0 | Hydrophobic |
| SD | CD1 | ILE- 102 | 3.65 | 0 | Hydrophobic |
| CE | CB | ASP- 118 | 3.62 | 0 | Hydrophobic |
| O2' | OD1 | ASP- 163 | 2.63 | 148.01 | H-Bond (Ligand Donor) |
| O2' | OD2 | ASP- 163 | 3.11 | 139.45 | H-Bond (Ligand Donor) |
| C4' | CD | LYS- 165 | 3.6 | 0 | Hydrophobic |
| N6 | O | ARG- 229 | 2.8 | 129.48 | H-Bond (Ligand Donor) |
| DuAr | DuAr | PHE- 230 | 3.65 | 0 | Aromatic Face/Face |
| C1' | CZ | PHE- 230 | 3.77 | 0 | Hydrophobic |
| N | OD1 | ASP- 238 | 2.98 | 140.77 | H-Bond (Ligand Donor) |
| O3' | OD2 | ASP- 238 | 2.97 | 157.99 | H-Bond (Ligand Donor) |
| N | OD1 | ASP- 238 | 2.98 | 0 | Ionic (Ligand Cationic) |
| C3' | CB | ASP- 238 | 3.68 | 0 | Hydrophobic |
| C5' | CB | ASP- 238 | 4.33 | 0 | Hydrophobic |
| O | NZ | LYS- 269 | 2.97 | 149.33 | H-Bond (Protein Donor) |
| O | NZ | LYS- 269 | 2.97 | 0 | Ionic (Protein Cationic) |
| OXT | NZ | LYS- 269 | 3.88 | 0 | Ionic (Protein Cationic) |
| CE | CD1 | ILE- 302 | 3.6 | 0 | Hydrophobic |
| OXT | O | HOH- 902 | 2.97 | 179.98 | H-Bond (Protein Donor) |