Research workbench
The structure of spoiisa and spoiisb, a toxin - antitoxin system
Analyse The structure of spoiisa and spoiisb, a toxin - antitoxin system in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.
- PDB
- 3O6Q
- Type
- protein
- Length
- 376 residues
- Chains
- 4
- Method
- x-ray diffraction
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Stage II sporulation protein sa; Stage II sporulation protein sb
- UniProt
- O34853, O34800
Structure
x-ray diffraction · 4 distinct chains · 51% helix, 20% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| A | Stage II sporulation protein sa | protein | 145 | 55% helix, 20% strand | O34853 |
| B | Stage II sporulation protein sb | protein | 43 | 33% helix, 19% strand | O34800 |
| C | Stage II sporulation protein sa | protein | 144 | 55% helix, 20% strand | O34853 |
| D | Stage II sporulation protein sb | protein | 44 | 39% helix, 18% strand | O34800 |
Interfaces
6 interfaces between chains.
- A–B · 1376 Ų buried · 15 hydrogen bonds · protein-protein
- C–D · 1373 Ų buried · 12 hydrogen bonds · protein-protein
- A–C · 1249 Ų buried · 4 hydrogen bonds · protein-protein
- A–D · 1234 Ų buried · 25 hydrogen bonds · protein-protein
- B–C · 1192 Ų buried · 23 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 8 modified, 2 disulfide (engineered, disulfide).
Compared structures
- 3O6Q · The Structure of SpoIISA and SpoIISB, a Toxin - Antitoxin System · the same entry in another collection · chain D against D, TM-score 1.00
- O34853 · AlphaFold monomer V2.0 prediction for stage II sporulation protein sa (O34853) · a predicted model of the same protein · chain C against A, TM-score 0.96
- O34800 · AlphaFold monomer V2.0 prediction for stage II sporulation protein sb (O34800) · a predicted model of the same protein · chain D against A, TM-score 0.41
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 O34853
- Every structure of UniProt O34800
- Elsewhere: RCSB PDB 3O6Q · PDBe 3O6Q · UniProt O34853 · UniProt O34800
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