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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P54355 New Search
5PDB entries
12Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
8H3X Bacteroide Fragilis Toxin in complex with nanobody 282 Deposited 2022-10-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Potassium thiocyanate, 20 % w/v PEG 3350
Resolution 1.66 Å R-free 0.216
8H3Y Bacteroide Fragilis Toxin in complex with nanobody 327 Deposited 2022-10-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Ammonium tartrate dibasic, 20% w/v Polyethylene glycol 3350, pH 6.6
Resolution 2.25 Å R-free 0.244
8H3Y Bacteroide Fragilis Toxin in complex with nanobody 327 Deposited 2022-10-09 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Ammonium tartrate dibasic, 20% w/v Polyethylene glycol 3350, pH 6.6
Resolution 2.25 Å R-free 0.244
8H3Y Bacteroide Fragilis Toxin in complex with nanobody 327 Deposited 2022-10-09 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Ammonium tartrate dibasic, 20% w/v Polyethylene glycol 3350, pH 6.6
Resolution 2.25 Å R-free 0.244
8WEM Bacteroides fragilis toxin 1 Deposited 2023-09-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium malonate pH 5.0, 20% w/v Polyethylene glycol 3350, 32 mg mL-1
Resolution 1.80 Å R-free 0.202
8WEM Bacteroides fragilis toxin 1 Deposited 2023-09-18 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 9–405（397 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Sodium malonate pH 5.0, 20% w/v Polyethylene glycol 3350, 32 mg mL-1
Resolution 1.80 Å R-free 0.202
8WEO Bacteroides fragilis toxin in complex with neutralization nanobody Deposited 2023-09-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Ammonium sulfate, 0.1 M Sodium acetate trihydrate pH 4.6, 25% w/v Polyethylene glycol 4,000
Resolution 1.50 Å R-free 0.197
8WEO Bacteroides fragilis toxin in complex with neutralization nanobody Deposited 2023-09-18 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Ammonium sulfate, 0.1 M Sodium acetate trihydrate pH 4.6, 25% w/v Polyethylene glycol 4,000
Resolution 1.50 Å R-free 0.197
9XVH Crystal structure of mature Bacteroides fragilis toxin 1 Deposited 2025-11-26 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；Crystals were grown from a crystallization solution containing 0.2 M sodium acetate trihydrate, 0.1 M sodium cacodylate pH 6.5 and 21% (w/v) PEG 8000. The protein solution was at a concentration of 20 mg/ml.
Resolution 1.94 Å R-free 0.266
9XVH Crystal structure of mature Bacteroides fragilis toxin 1 Deposited 2025-11-26 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；Crystals were grown from a crystallization solution containing 0.2 M sodium acetate trihydrate, 0.1 M sodium cacodylate pH 6.5 and 21% (w/v) PEG 8000. The protein solution was at a concentration of 20 mg/ml.
Resolution 1.94 Å R-free 0.266
9XVH Crystal structure of mature Bacteroides fragilis toxin 1 Deposited 2025-11-26 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；Crystals were grown from a crystallization solution containing 0.2 M sodium acetate trihydrate, 0.1 M sodium cacodylate pH 6.5 and 21% (w/v) PEG 8000. The protein solution was at a concentration of 20 mg/ml.
Resolution 1.94 Å R-free 0.266
9XVH Crystal structure of mature Bacteroides fragilis toxin 1 Deposited 2025-11-26 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 220–405（186 aa）
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；Crystals were grown from a crystallization solution containing 0.2 M sodium acetate trihydrate, 0.1 M sodium cacodylate pH 6.5 and 21% (w/v) PEG 8000. The protein solution was at a concentration of 20 mg/ml.
Resolution 1.94 Å R-free 0.266

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.