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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：P0A855 New Search
6PDB entries
15Biological assembly
15chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
1C5K THE STRUCTURE OF TOLB, AN ESSENTIAL COMPONENT OF THE TOL-DEPENDENT TRANSLOCATION SYSTEM AND ITS INTERACTIONS WITH THE TRANSLOCATION DOMAIN OF COLICIN E9 Deposited 1999-12-05 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–430（430 aa） Fragment：ENTIRE PROTEIN
Not recorded YB YTTERBIUM (III) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；pH 6.5
Resolution 2.00 Å R-free 0.271
1CRZ CRYSTAL STRUCTURE OF THE E. COLI TOLB PROTEIN Deposited 1999-08-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 28–430（403 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；PEG 8000, SODIUM CHLORIDE, TRIS, TCEP, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
Resolution 1.95 Å R-free 0.238
2HQS Crystal structure of TolB/Pal complex Deposited 2006-07-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 23–430（408 aa）
Not recorded ACT ACETATE ION × 2 SO4 SULFATE ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；MME PEG 2000, ammonium sulfate, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.50 Å R-free 0.213
2HQS Crystal structure of TolB/Pal complex Deposited 2006-07-19 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 23–430（408 aa）
Not recorded ACT ACETATE ION × 2 SO4 SULFATE ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；MME PEG 2000, ammonium sulfate, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.50 Å R-free 0.213
2HQS Crystal structure of TolB/Pal complex Deposited 2006-07-19 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 23–430（408 aa）
Not recorded ACT ACETATE ION × 1 SO4 SULFATE ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；MME PEG 2000, ammonium sulfate, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.50 Å R-free 0.213
2HQS Crystal structure of TolB/Pal complex Deposited 2006-07-19 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 23–430（408 aa）
Not recorded ACT ACETATE ION × 2 SO4 SULFATE ION × 3 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；MME PEG 2000, ammonium sulfate, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.50 Å R-free 0.213
2IVZ Structure of TolB in complex with a peptide of the colicin E9 T- domain Deposited 2006-06-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–430（430 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；24% POLYETHYLENE GLYCOL MONOMETHYL ETHER 5000, 80 MM CACL2, 100 MM HEPES, PH 7.5
Resolution 2.00 Å R-free 0.222
2IVZ Structure of TolB in complex with a peptide of the colicin E9 T- domain Deposited 2006-06-23 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–430（430 aa）
Not recorded CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；24% POLYETHYLENE GLYCOL MONOMETHYL ETHER 5000, 80 MM CACL2, 100 MM HEPES, PH 7.5
Resolution 2.00 Å R-free 0.222
2IVZ Structure of TolB in complex with a peptide of the colicin E9 T- domain Deposited 2006-06-23 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–430（430 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；24% POLYETHYLENE GLYCOL MONOMETHYL ETHER 5000, 80 MM CACL2, 100 MM HEPES, PH 7.5
Resolution 2.00 Å R-free 0.222
2IVZ Structure of TolB in complex with a peptide of the colicin E9 T- domain Deposited 2006-06-23 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 1–430（430 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；24% POLYETHYLENE GLYCOL MONOMETHYL ETHER 5000, 80 MM CACL2, 100 MM HEPES, PH 7.5
Resolution 2.00 Å R-free 0.222
2W8B Crystal structure of processed TolB in complex with Pal Deposited 2009-01-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–430（409 aa）
Not recorded SO4 SULFATE ION × 3 GOL GLYCEROL × 1 ACT ACETATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；0.1M SODIUM ACETATE PH 4.6, 17% PEG4000, 0.2M AMMONIUM SULPHATE, 20MG/ML
Resolution 1.86 Å R-free 0.247
2W8B Crystal structure of processed TolB in complex with Pal Deposited 2009-01-15 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 22–430（409 aa）
Not recorded SO4 SULFATE ION × 1 GOL GLYCEROL × 2 ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；0.1M SODIUM ACETATE PH 4.6, 17% PEG4000, 0.2M AMMONIUM SULPHATE, 20MG/ML
Resolution 1.86 Å R-free 0.247
2W8B Crystal structure of processed TolB in complex with Pal Deposited 2009-01-15 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 22–430（409 aa）
Not recorded SO4 SULFATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；0.1M SODIUM ACETATE PH 4.6, 17% PEG4000, 0.2M AMMONIUM SULPHATE, 20MG/ML
Resolution 1.86 Å R-free 0.247
2W8B Crystal structure of processed TolB in complex with Pal Deposited 2009-01-15 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 22–430（409 aa）
Not recorded SO4 SULFATE ION × 2 GOL GLYCEROL × 3 ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；0.1M SODIUM ACETATE PH 4.6, 17% PEG4000, 0.2M AMMONIUM SULPHATE, 20MG/ML
Resolution 1.86 Å R-free 0.247
3IAX The crystal structure of the TolB box of Colicin A in complex with TolB reveals important differences in the recruitment of the common TolB translocation portal used by group A colicins Deposited 2009-07-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–430（430 aa）
Not recorded NA SODIUM ION × 1 CA CALCIUM ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；20% PEG 10000, 0.1 M Hepes, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.60 Å R-free 0.257

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.