1.400 Å
X-ray
2014-10-24
| Name: | Okadaic acid binding protein 2-alpha |
|---|---|
| ID: | Q2MHR1_HALOK |
| AC: | Q2MHR1 |
| Organism: | Halichondria okadai |
| Reign: | Eukaryota |
| TaxID: | 163232 |
| EC Number: | / |
| Chain Name: | Percentage of Residues within binding site |
|---|---|
| A | 100 % |
| B-Factor: | 17.049 |
|---|---|
| Number of residues: | 55 |
| Including | |
| Standard Amino Acids: | 52 |
| Non Standard Amino Acids: | 3 |
| Water Molecules: | 0 |
| Cofactors: | |
| Metals: | |
| Ligandability | Volume (Å3) |
|---|---|
| 0.607 | 1879.875 |
| % Hydrophobic | % Polar |
|---|---|
| 46.68 | 53.32 |
| According to VolSite | |

| HET Code: | OKA |
|---|---|
| Formula: | C44H67O13 |
| Molecular weight: | 803.995 g/mol |
| DrugBank ID: | DB02169 |
| Buried Surface Area: | 69.26 % |
| Polar Surface area: | 185.66 Å2 |
| Number of | |
|---|---|
| H-Bond Acceptors: | 13 |
| H-Bond Donors: | 4 |
| Rings: | 7 |
| Aromatic rings: | 0 |
| Anionic atoms: | 1 |
| Cationic atoms: | 0 |
| Rule of Five Violation: | 2 |
| Rotatable Bonds: | 10 |
| X | Y | Z |
|---|---|---|
| 29.4874 | 51.2194 | 57.8529 |
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 |
| C17 | CZ2 | TRP- 22 | 4.03 | 0 | Hydrophobic |
| C42 | CD1 | PHE- 37 | 3.82 | 0 | Hydrophobic |
| C43 | CG2 | VAL- 41 | 4.03 | 0 | Hydrophobic |
| C2 | CD | ARG- 44 | 4.33 | 0 | Hydrophobic |
| C43 | CD | ARG- 44 | 4.34 | 0 | Hydrophobic |
| C11 | CD | ARG- 44 | 4.16 | 0 | Hydrophobic |
| O2 | NH2 | ARG- 44 | 3.41 | 128.81 | H-Bond (Protein Donor) |
| O2 | NE | ARG- 44 | 2.77 | 158 | H-Bond (Protein Donor) |
| O2 | CZ | ARG- 44 | 3.51 | 0 | Ionic (Protein Cationic) |
| C44 | CE2 | PHE- 48 | 3.72 | 0 | Hydrophobic |
| C43 | CE | MET- 58 | 3.65 | 0 | Hydrophobic |
| C7 | CD | ARG- 61 | 4.24 | 0 | Hydrophobic |
| C43 | CB | ARG- 61 | 3.87 | 0 | Hydrophobic |
| C43 | CB | SER- 62 | 4.07 | 0 | Hydrophobic |
| C13 | CB | HIS- 65 | 4.2 | 0 | Hydrophobic |
| C18 | CD2 | LEU- 104 | 4.41 | 0 | Hydrophobic |
| C20 | CD2 | LEU- 104 | 3.9 | 0 | Hydrophobic |
| C6 | CB | SER- 107 | 4.06 | 0 | Hydrophobic |
| C21 | CB | SER- 107 | 3.49 | 0 | Hydrophobic |
| C21 | CB | SER- 108 | 4.29 | 0 | Hydrophobic |
| O11 | OG | SER- 108 | 2.94 | 151.57 | H-Bond (Ligand Donor) |
| C3 | CD1 | PHE- 111 | 4.02 | 0 | Hydrophobic |
| C5 | CB | PHE- 111 | 4.44 | 0 | Hydrophobic |
| C26 | CB | PHE- 111 | 4.08 | 0 | Hydrophobic |
| C28 | CD2 | PHE- 111 | 4.25 | 0 | Hydrophobic |
| C44 | CE1 | PHE- 111 | 4.16 | 0 | Hydrophobic |
| C31 | CE2 | PHE- 111 | 3.85 | 0 | Hydrophobic |
| C39 | CZ3 | TRP- 112 | 3.9 | 0 | Hydrophobic |
| C39 | CD1 | ILE- 115 | 4.03 | 0 | Hydrophobic |
| C33 | CB | ALA- 128 | 4.42 | 0 | Hydrophobic |
| C32 | CD2 | LEU- 131 | 3.76 | 0 | Hydrophobic |
| C32 | CG2 | VAL- 135 | 4.43 | 0 | Hydrophobic |
| C38 | CG2 | THR- 136 | 4.3 | 0 | Hydrophobic |
| C37 | CD2 | LEU- 141 | 4.15 | 0 | Hydrophobic |
| C37 | CD1 | ILE- 146 | 4.05 | 0 | Hydrophobic |
| C35 | CE1 | PHE- 147 | 3.89 | 0 | Hydrophobic |
| C37 | CZ | PHE- 147 | 4.45 | 0 | Hydrophobic |
| C36 | CE | MET- 150 | 3.66 | 0 | Hydrophobic |
| C35 | CG2 | THR- 163 | 4.15 | 0 | Hydrophobic |
| C39 | CG2 | THR- 163 | 4.18 | 0 | Hydrophobic |
| C29 | CB | THR- 163 | 4.23 | 0 | Hydrophobic |
| C18 | CZ | PHE- 171 | 3.87 | 0 | Hydrophobic |
| C40 | CG2 | VAL- 184 | 3.9 | 0 | Hydrophobic |
| C36 | CG2 | VAL- 184 | 3.92 | 0 | Hydrophobic |
| O8 | NH1 | ARG- 185 | 2.94 | 170.33 | H-Bond (Protein Donor) |