MolNFT v1 · #27448 · protein
NADPH- and ascorbate-supported heme oxygenase reactions are distinct. regiospecificity of heme cleavage by the R183E mutant
1XK3 · Heme oxygenase 1: “NADPH- and ascorbate-supported heme oxygenase reactions are distinct. regiospecificity of heme cleavage by…”. X-ray diffraction, 2 ligands (HEM, NO), 5 pockets (best druggability 0.73). MolNFT v1 #27448 on…
- PDB
- 1XK3
- Type
- protein
- Length
- 428 residues
- Chains
- 2
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Heme oxygenase 1
- EC
- 1.14.99.3
- UniProt
- P09601
- Ligands
- HEM, NO
- Pockets
- 5 · best druggability 0.73
Structure
x-ray diffraction · 1 distinct chain · 75% helix, 0% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A, B | Heme oxygenase 1 (EC 1.14.99.3) | protein | 214 | 75% helix, 0% strand | P09601 |
Ligands and binding sites
- HEM · Protoporphyrin IX containing Fe · ligand · 2 copies · chains A, B
- NO · Nitric oxide · ion · chains A
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
5 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 329 | 0.73 | 0.85 | 36 | HEM |
| 2 | 340 | 0.72 | 0.84 | 36 | HEM, NO |
| 3 | 278 | 0.61 | 0.79 | 35 | empty |
| 4 | 83 | 0.41 | 0.78 | 18 | empty |
| 5 | 112 | 0.40 | 0.76 | 20 | empty |
Interfaces
1 interface between chains.
- A–B · 1157 Ų buried · 21 hydrogen bonds · protein-protein
Compared structures
- 1XK3 · NADPH- and Ascorbate-Supported Heme Oxygenase Reactions are Distinct. Regiospecificity of… · the same entry in another collection · chain A against A, TM-score 1.00
- P09601 · AlphaFold monomer V2.0 prediction for heme oxygenase 1 (P09601) · a predicted model of the same protein · chain A against A, TM-score 0.98
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 P09601
- Elsewhere: RCSB PDB 1XK3 · PDBe 1XK3 · UniProt P09601
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