Research workbench
Crystal structure of an engineered metal-free tetrameric cytochrome CB562 complex templated by zn-coordination
Analyse Crystal structure of an engineered metal-free tetrameric cytochrome CB562… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 3IQ5
- Type
- protein
- Length
- 424 residues
- Chains
- 4
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Soluble cytochrome B562
- UniProt
- P0ABE7
- Ligands
- HEM
- Pockets
- 8 · best druggability 0.70
Structure
x-ray diffraction · 1 distinct chain · 79% helix, 0% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A, B, C, D | Soluble cytochrome B562 | protein | 106 | 79% helix, 0% strand | P0ABE7 |
Ligands and binding sites
- HEM · Protoporphyrin IX containing Fe · ligand · 4 copies · chains A, B, C, D
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
8 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 409 | 0.70 | 0.81 | 46 | HEM |
| 2 | 151 | 0.58 | 0.82 | 22 | HEM |
| 3 | 141 | 0.57 | 0.82 | 21 | HEM |
| 4 | 146 | 0.56 | 0.81 | 23 | HEM |
| 5 | 105 | 0.44 | 0.79 | 20 | empty |
Interfaces
3 interfaces between chains.
- B–D · 682 Ų buried · 7 hydrogen bonds · protein-protein
- A–C · 656 Ų buried · 5 hydrogen bonds · protein-protein
- A–B · 356 Ų buried · 8 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 8 cofactor (heme attachment).
Compared structures
- 3IQ5 · Crystal structure of an engineered metal-free tetrameric cytochrome cb562 complex… · the same entry in another collection · chain D against D, TM-score 1.00
- P0ABE7 · AlphaFold monomer V2.0 prediction for soluble cytochrome B562 (P0ABE7) · a predicted model of the same protein · chain B against A, TM-score 0.97
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 P0ABE7
- Elsewhere: RCSB PDB 3IQ5 · PDBe 3IQ5 · UniProt P0ABE7
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