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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：P0A6M2 New Search
9PDB entries
13Biological assembly
13chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
2HI7 Crystal structure of DsbA-DsbB-ubiquinone complex Deposited 2006-06-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–176（176 aa）
Mutation：C8A,C49V,C130S ZN ZINC ION × 1 UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；JeffamimeED2001, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.70 Å R-free 0.362
2HI7 Crystal structure of DsbA-DsbB-ubiquinone complex Deposited 2006-06-29 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–176（176 aa）
Mutation：C8A,C49V,C130S ZN ZINC ION × 2 UQ1 UBIQUINONE-1 × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；JeffamimeED2001, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 3.70 Å R-free 0.362
2K73 Solution NMR structure of integral membrane protein DsbB Deposited 2008-08-01 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–176（176 aa）
Mutation：C8A, C44S, C49A, C104S No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.2；313 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient
NMR sample composition 1.2 mM [U-13C; U-15N; U-2H] DsbB[CSSC], 100 mM [U-2H] DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1.5 mM I,L,V methyl protonated, [U-13C; U-15N; U-2H] DsbB[CSSC], 100 mM [U-2H] DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 0.75 mM [U-15N; U-2H] DsbB[CSSC] single Cys mutants, 100 mM DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
2K74 Solution NMR structure of DsbB-ubiquinone complex Deposited 2008-08-01 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–176（176 aa）
Mutation：C8A, C44S, C49A, C104S UQ2 UBIQUINONE-2 × 1 SOLUTION NMR
NMR measurement conditions pH 6.2；313 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient
NMR sample composition 1.2 mM [U-13C; U-15N; U-2H] DsbB[CSSC], 100 mM [U-2H] DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1.5 mM I,L,V methyl protonated, [U-13C; U-15N; U-2H] DsbB[CSSC], 100 mM [U-2H] DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 0.75 mM [U-15N; U-2H] DsbB[CSSC] single Cys mutants, 100 mM DPC, 25 mM sodium phosphate, 50 mM potassium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 0.4 mM [U-13C; U-15N; U-2H] DsbB[CSSC], 2.0 mM UQ2, 5 % [U-2H] DMSO, 25 mM sodium phosphate, 50 mM potassium chloride, 100 mM [U-2H] DPC, 100% D2O | 100% D2O
NMR sample composition 0.4 mM [U-13C; U-15N; U-2H] DsbB[CSSC], 2.0 mM UQ2, 5 % [U-2H] DMSO, 25 mM sodium phosphate, 50 mM potassium chloride, 100 mM [U-2H] DPC, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 10 uM [U-15N; U-2H] DsbB[CSSC] L30C-MTSL/dMTSL, 0.6 mM UQ2, 5 % [U-2H] DMSO, 25 mM sodium phosphate, 50 mM potassium chloride, 100 mM [U-2H] DPC, 100% D2O | 100% D2O
Resolution not provided
2LEG Membrane protein complex DsbB-DsbA structure by joint calculations with solid-state NMR and X-ray experimental data Deposited 2011-06-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–176（176 aa）
Mutation：C8A, C49V, C130S ZN ZINC ION × 1 UQ1 UBIQUINONE-1 × 1 SOLID-STATE NMR
NMR measurement conditions pH 7；270 K；Pressure ambient
NMR measurement conditions pH 7.8；261 K；Pressure ambient
NMR sample composition 15 mg [U-100% 13C; U-100% 15N] DsbA, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 10 mg [2-13C-glycerol; U-15N] DsbA, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 10 mg [1,3-13C-glycerol; U-15N] DsbA, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 7 mg [U-100% 13C; U-100% 15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 5 mg [2-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 4 mg [1,3-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
2LTQ High resolution structure of DsbB C41S by joint calculation with solid-state NMR and X-ray data Deposited 2012-05-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–176（176 aa）
Mutation：C8A,C41S,C49V UQ8 Ubiquinone-8 × 1 SOLID-STATE NMR
NMR measurement conditions pH 7.8；261 K；Pressure ambient
NMR sample composition 7 mg [U-100% 13C; U-100% 15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 5 mg [2-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 4 mg [1,3-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
2LTQ High resolution structure of DsbB C41S by joint calculation with solid-state NMR and X-ray data Deposited 2012-05-30 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 1–176（176 aa）
Mutation：C8A,C41S,C49V UQ8 Ubiquinone-8 × 1 SOLID-STATE NMR
NMR measurement conditions pH 7.8；261 K；Pressure ambient
NMR sample composition 7 mg [U-100% 13C; U-100% 15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 5 mg [2-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 4 mg [1,3-13C-glycerol; U-15N] DsbB, 2 mg DDM, 7 mg E. coli lipids, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
2ZUP Updated crystal structure of DsbB-DsbA complex from E. coli Deposited 2008-10-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–176（176 aa）
Mutation：C8A,C49V,C130S ZN ZINC ION × 1 UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 7；293 K；23% Jeffamine ED2001, 80mM HEPES, 14.4% glycerol, 2mM ZnCl2, pH 7.0, EVAPORATION, temperature 293K
Resolution 3.70 Å R-free 0.334
2ZUQ Crystal structure of DsbB-Fab complex Deposited 2008-10-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–176（176 aa）
Mutation：C8A,C41S,C49V UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7；293 K；15% PEG3350, pH 7, VAPOR DIFFUSION, temperature 293K
Resolution 3.30 Å R-free 0.351
2ZUQ Crystal structure of DsbB-Fab complex Deposited 2008-10-28 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 1–176（176 aa）
Mutation：C8A,C41S,C49V UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7；293 K；15% PEG3350, pH 7, VAPOR DIFFUSION, temperature 293K
Resolution 3.30 Å R-free 0.351
3E9J Structure of the charge-transfer intermediate of the transmembrane redox catalyst DsbB Deposited 2008-08-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–176（176 aa）
Mutation：C8A, C49V UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；277 K；23% PEG550 MME, 50 mM Tris pH 8.9, 1.0 M ammonium formate, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 3.70 Å R-free 0.379
3E9J Structure of the charge-transfer intermediate of the transmembrane redox catalyst DsbB Deposited 2008-08-22 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 1–176（176 aa）
Mutation：C8A, C49V UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.9；277 K；23% PEG550 MME, 50 mM Tris pH 8.9, 1.0 M ammonium formate, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 3.70 Å R-free 0.379
6WVF E.coli DsbB C104S with ubiquinone Deposited 2020-05-05 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 6–167（162 aa）
Mutation：C8A,C49V,C104S Non-standard monomer：Yes (specific site not provided by mmCIF) UQ1 UBIQUINONE-1 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；295 K；34% PEG 400, 60 mM NaCl, 0.1 M HEPES pH 7.5
Resolution 2.90 Å R-free 0.286

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.