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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：P0A744 New Search
4PDB entries
12Biological assembly
16chain/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
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–211（211 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–211（211 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 1–211（211 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；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 4 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–211（211 aa）
Chain B 1–211（211 aa）
Chain C 1–211（211 aa）
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 × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 5 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–211（211 aa）
Chain B 1–211（211 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
1FF3 STRUCTURE OF THE PEPTIDE METHIONINE SULFOXIDE REDUCTASE FROM ESCHERICHIA COLI Deposited 2000-07-25 Assembly 6 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–211（211 aa）
Chain C 1–211（211 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；0.35 M ammonium sulphate, 20 % PEG 8K, Cacodylate buffer 0.1 M, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.90 Å R-free 0.218
2GT3 Solution structure and dynamics of the reduced form of Methionine Sulfoxide Reductase A from Escherichia coli, a 23 kDa protein Deposited 2006-04-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–211（211 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.1；298 K；Pressure 1
NMR sample composition 1 mM MsrA, 1mM DTT, 50 mM KPi, pH 7.1, 90 % H2O, 10 % D2O | 90% H2O/10% D2O
Resolution not provided
2IEM Solution structure of an oxidized form (Cys51-Cys198) of E. coli Methionine Sulfoxide Reductase A (MsrA) Deposited 2006-09-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–211（211 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.1；298 K
NMR sample composition 1 mM MsrA U-15N,13C; 50 mM phosphate buffer NA; 90% H2O, 10% D2O | 90% H2O/10% D2O
Resolution not provided
6YEV Crystal structure of MsrA C206 and Trx C35S complex from Escherichia coli Deposited 2020-03-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–212（212 aa）
Mutation：Cys51Ala, Cys86Ala, Cys198Ala NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277.15 K；0.1M BIS-TRIS propane pH 6.5, 0.2M trisodium citrate, 20% PEG 3350
Resolution 2.94 Å R-free 0.258
6YEV Crystal structure of MsrA C206 and Trx C35S complex from Escherichia coli Deposited 2020-03-25 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–212（212 aa）
Mutation：Cys51Ala, Cys86Ala, Cys198Ala NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277.15 K；0.1M BIS-TRIS propane pH 6.5, 0.2M trisodium citrate, 20% PEG 3350
Resolution 2.94 Å R-free 0.258
6YEV Crystal structure of MsrA C206 and Trx C35S complex from Escherichia coli Deposited 2020-03-25 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–212（212 aa）
Mutation：Cys51Ala, Cys86Ala, Cys198Ala NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277.15 K；0.1M BIS-TRIS propane pH 6.5, 0.2M trisodium citrate, 20% PEG 3350
Resolution 2.94 Å R-free 0.258
6YEV Crystal structure of MsrA C206 and Trx C35S complex from Escherichia coli Deposited 2020-03-25 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 1–212（212 aa）
Mutation：Cys51Ala, Cys86Ala, Cys198Ala NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277.15 K；0.1M BIS-TRIS propane pH 6.5, 0.2M trisodium citrate, 20% PEG 3350
Resolution 2.94 Å R-free 0.258

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.