2.260 Å
X-ray
2013-07-08
| Name: | Streptavidin |
|---|---|
| ID: | SAV_STRAV |
| AC: | P22629 |
| Organism: | Streptomyces avidinii |
| Reign: | Bacteria |
| TaxID: | 1895 |
| EC Number: | / |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| B | 100 % |
| B-Factor: | 42.413 |
|---|---|
| Number of residues: | 31 |
| Including | |
| Standard Amino Acids: | 31 |
| Non Standard Amino Acids: | 0 |
| Water Molecules: | 0 |
| Cofactors: | |
| Metals: | |
| Ligandability | Volume (Å3) |
|---|---|
| 0.842 | 320.625 |
| % Hydrophobic | % Polar |
|---|---|
| 61.05 | 38.95 |
| According to VolSite | |

| HET Code: | B4F |
|---|---|
| Formula: | C33H31N4O8S |
| Molecular weight: | 643.686 g/mol |
| DrugBank ID: | - |
| Buried Surface Area: | 43.26 % |
| Polar Surface area: | 211.28 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 9 |
| H-Bond Donors: | 5 |
| Rings: | 6 |
| Aromatic rings: | 2 |
| Anionic atoms: | 1 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 2 |
| Rotatable Bonds: | 11 |
| X | Y | Z |
|---|---|---|
| 49.0568 | 45.7165 | 27.6776 |
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 |
| O1 | ND2 | ASN- 23 | 2.93 | 138.07 | H-Bond (Protein Donor) |
| O1 | OG | SER- 27 | 2.94 | 139.69 | H-Bond (Protein Donor) |
| N2 | OG | SER- 45 | 3.03 | 171.31 | H-Bond (Ligand Donor) |
| C6 | CB | SER- 45 | 4.38 | 0 | Hydrophobic |
| C6 | CG2 | VAL- 47 | 4.32 | 0 | Hydrophobic |
| O2 | N | ASN- 49 | 2.97 | 138.29 | H-Bond (Protein Donor) |
| C8 | CB | ALA- 50 | 4.45 | 0 | Hydrophobic |
| C6 | CZ2 | TRP- 79 | 3.91 | 0 | Hydrophobic |
| C9 | CD2 | TRP- 79 | 3.74 | 0 | Hydrophobic |
| S1 | CZ2 | TRP- 79 | 3.56 | 0 | Hydrophobic |
| C8 | CE2 | TRP- 79 | 3.84 | 0 | Hydrophobic |
| C9 | CB | ALA- 86 | 4.25 | 0 | Hydrophobic |
| S1 | CG2 | THR- 90 | 3.74 | 0 | Hydrophobic |
| S1 | CZ2 | TRP- 92 | 3.81 | 0 | Hydrophobic |
| C4 | CE2 | TRP- 108 | 3.45 | 0 | Hydrophobic |
| C5 | CD2 | LEU- 110 | 4.08 | 0 | Hydrophobic |
| C7 | CD2 | LEU- 110 | 3.56 | 0 | Hydrophobic |
| O8 | NZ | LYS- 121 | 2.7 | 122.4 | H-Bond (Protein Donor) |
| C31 | CD | LYS- 121 | 3.54 | 0 | Hydrophobic |
| C17 | CD2 | LEU- 124 | 4.24 | 0 | Hydrophobic |
| C16 | CD1 | LEU- 124 | 3.65 | 0 | Hydrophobic |
| N1 | OD2 | ASP- 128 | 2.76 | 174.75 | H-Bond (Ligand Donor) |