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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：P0A850 New Search
11PDB entries
12Biological assembly
17chain/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
1L1P Solution Structure of the PPIase Domain from E. coli Trigger Factor Deposited 2002-02-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 148–249（102 aa） Fragment：PPIase domain
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.8；303 K；Ionic strength (raw mmCIF value) 0.1M NaCl；Pressure ambient
NMR sample composition 2-3mM PPIase domain U-15N; 50mM phosphate buffer; 0.1M NaCl; 0.02% NaN3 | 90% H2O/10% D2O
NMR sample composition 2-3mM PPIase domain; 50mM phosphate buffer; 0.1M NaCl; 0.02% NaN3 | 90% H2O/10% D2O
NMR sample composition 2-3mM PPIase domain; 50mM phosphate buffer; 0.1M NaCl; 0.02% NaN3 | 100% D2O
Resolution not provided
1OMS Structure determination by MAD: E.coli Trigger Factor binding at the ribosomal exit tunnel. Deposited 2003-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–118（118 aa） Fragment：Ribosome binding domain
Chain B 1–118（118 aa） Fragment：Ribosome binding domain
Chain C 1–118（118 aa） Fragment：Ribosome binding domain
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 13 PG4 TETRAETHYLENE GLYCOL × 5 SO2 SULFUR DIOXIDE × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；279 K；PEG 2000 MME, PEG 400, ammonium sulfate, sodium acetate, tris, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 279K
Resolution 2.30 Å R-free 0.238
1P9Y Ribosome binding of E. coli Trigger Factor mutant F44L. Deposited 2003-05-13 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–118（118 aa） Fragment：Ribosome binding domain
Mutation：F44L ACY ACETIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；281 K；PEG 2000 MME, AMMONIUM SULFATE, SODIUM ACETATE, TRIS, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 281K
Resolution 2.15 Å R-free 0.247
1P9Y Ribosome binding of E. coli Trigger Factor mutant F44L. Deposited 2003-05-13 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–118（118 aa） Fragment：Ribosome binding domain
Mutation：F44L ACY ACETIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；281 K；PEG 2000 MME, AMMONIUM SULFATE, SODIUM ACETATE, TRIS, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 281K
Resolution 2.15 Å R-free 0.247
2VRH Structure of the E. coli trigger factor bound to a translating ribosome Deposited 2008-04-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–432（432 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 50 MM HEPES-KOH PH 7.5, 100 MM KCL, 25 MM MGCL2, 0.5 MG/ML CHLORAMPHENICOL；pH 7.5；50 MM HEPES-KOH PH 7.5, 100 MM KCL, 25 MM MGCL2, 0.5 MG/ML CHLORAMPHENICOL
cryo-EM vitrification conditions Cryogen ETHANE；LIQUID ETHANE
Resolution 19.00 Å
5OWI The dynamic dimer structure of the chaperone Trigger Factor (conformer 1) Deposited 2017-09-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–432（432 aa）
Chain B 1–432（432 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.5；298 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR sample composition 0.3 mM [U-15N; U-2H] Trigger Factor, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1 mM [U-13C; U-15N; U-2H] Trigger Factor, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
5OWJ The dynamic dimer structure of the chaperone Trigger Factor (conformer 2) Deposited 2017-09-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–432（432 aa）
Chain B 1–432（432 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.5；298 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR sample composition 0.3 mM [U-15N; U-2H] Trigger Factor, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1 mM [U-13C; U-15N; U-2H] Trigger Factor, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
6D6S Solution structure of Trigger Factor dimer Deposited 2018-04-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–432（432 aa）
Chain B 1–432（432 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；295 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR measurement conditions pH 7；283 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR measurement conditions pH 7；308 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR measurement conditions pH 7；295 K；Ionic strength (raw mmCIF value) 100；Pressure 1
NMR sample composition 2.2 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3; Leu/Val-13CH3/13CH3; Phe-13C15N; Tyr-13C15N] TF, 93% H2O/7% D2O | 93% H2O/7% D2O
NMR sample composition 0.6 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3] Trigger Factor, 0.6 mM [Leu/Val-13CH3/13CH3; Phe-13C15N; Tyr-13C15N] TF, 100% D2O | 100% D2O
NMR sample composition 0.3 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3; Leu/Val-13CH3/13CH3; Phe-13C15N; Tyr-13C15N] RBD, 0.3 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3; Leu/Val-13CH3/13CH3] PPD-SBD, 100% D2O | 100% D2O
NMR sample composition 0.3 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3; Leu/Val-13CH3/13CH3; Phe-13C15N; Tyr-13C15N] RBD, 93% H2O/7% D2O | 93% H2O/7% D2O
NMR sample composition 0.8 mM [U-99% 13C; U-99% 15N] PPD, 93% H2O/7% D2O | 93% H2O/7% D2O
NMR sample composition 0.5 mM [U-2H; Ala-13CH3; Met-13CH3; Ile-d1-13CH3; Leu/Val-13CH3/13CH3; Phe-13C15N; Tyr-13C15N] SBD, 93% H2O/7% D2O | 93% H2O/7% D2O
Resolution not provided
7D6Z Molecular model of the cryo-EM structure of 70S ribosome in complex with peptide deformylase and trigger factor Deposited 2020-10-02 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 58-meric（58） Consistent with all polymers
Chain h 1–117（117 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
7D80 Molecular model of the cryo-EM structure of 70S ribosome in complex with peptide deformylase, trigger factor, and methionine aminopeptidase Deposited 2020-10-06 Assembly 1 Protein–RNA Heteromer；Protein × 51 PDB declaration: 57-meric（57） Consistent with all polymers
Chain 5 1–432（432 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.10 Å
8ZFI Structure of E.coli ribosome in complex with an engineered arrest peptide and trigger factor Deposited 2024-05-07 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 57-meric（57） Consistent with all polymers
Chain V 1–432（432 aa）
Not recorded ZN ZINC ION × 1 PRO PROLINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6；20 mM HEPES (pH 7.6), 140 mM NH4Cl, 25 mM MgCl2, 2 mM DTT
cryo-EM vitrification conditions Cryogen NITROGEN
Resolution 2.90 Å
9WNR Structure of E.coli ribosome in complex with an engineered arrest peptide and trigger factor Deposited 2025-09-05 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 57-meric（57） Consistent with all polymers
Chain V 1–432（432 aa）
Not recorded ZN ZINC ION × 1 PRO PROLINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6；20 mM HEPES (pH 7.6), 140 mM NH4Cl, 25 mM MgCl2, 2 mM DTT
cryo-EM vitrification conditions Cryogen NITROGEN
Resolution 2.76 Å

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.