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Crystal structure of cyanide bound form of human indoleamine 2,3- dioxygenase
Analyse Crystal structure of cyanide bound form of human indoleamine 2,3- dioxygenase in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 2D0U
- Type
- protein
- Length
- 747 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Indoleamine 2,3-dioxygenase
- EC
- 1.13.11.42
- UniProt
- P14902
- Ligands
- HEM, CYN
- Pockets
- 5 · best druggability 0.83
Structure
x-ray diffraction · 2 distinct chains · 59% helix, 4% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Indoleamine 2,3-dioxygenase (EC 1.13.11.42) | protein | 373 | 60% helix, 4% strand | P14902 |
| B | Indoleamine 2,3-dioxygenase (EC 1.13.11.42) | protein | 374 | 59% helix, 4% strand | P14902 |
Ligands and binding sites
- HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, B
- CYN · Cyanide ion · ion · 2 copies · chains A, B
- NHE · 2-[N-cyclohexylamino]ethane sulfonic acid · additive · 4 copies · chains A, B
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
5 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 1165 | 0.83 | 0.84 | 118 | empty |
| 2 | 605 | 0.82 | 0.86 | 55 | CYN, HEM, NHE |
| 3 | 603 | 0.82 | 0.86 | 47 | CYN, HEM, NHE |
| 4 | 230 | 0.51 | 0.76 | 36 | empty |
| 5 | 74 | 0.39 | 0.78 | 21 | empty |
Interfaces
1 interface between chains.
- A–B · 508 Ų buried · 5 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 1 disulfide (disulfide).
Compared structures
- 2D0U · Crystal structure of cyanide bound form of human indoleamine 2,3-dioxygenase · the same entry in another collection · chain A against A, TM-score 1.00
- P14902 · AlphaFold monomer V2.0 prediction for indoleamine 2,3-dioxygenase 1 (P14902) · a predicted model of the same protein · chain A against A, TM-score 0.99
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P14902
- Elsewhere: RCSB PDB 2D0U · PDBe 2D0U · UniProt P14902
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