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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：P37344 New Search
19PDB entries
19Biological assembly
64chain/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
2BJV Crystal Structure of PspF(1-275) R168A mutant Deposited 2005-02-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Mutation：YES No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2 M AMMONIUM FORMATE, 0.1 MM HEPES PH 8.0, 10% MPD
Resolution 1.70 Å R-free 0.212
2BJW PspF AAA domain Deposited 2005-02-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2.0 M AMMONIUM FORMATE, 0.1 M HEPES PH 8.0, 10% MPD
Resolution 1.75 Å R-free 0.208
2C96 Structural basis of the nucleotide driven conformational changes in the AAA domain of transcription activator PspF Deposited 2005-12-09 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2M AMMONIUM FORMATE, 0.1 M HEPES PH 8.0, 5% MPD
Resolution 1.80 Å R-free 0.246
2C98 Structural basis of the nucleotide driven conformational changes in the AAA domain of transcription activator PspF Deposited 2005-12-09 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2M AMMONIUM FORMATE, 0.1 M HEPES PH 8.0, 5% MPD
Resolution 1.90 Å R-free 0.203
2C99 Structural basis of the nucleotide driven conformational changes in the AAA domain of transcription activator PspF Deposited 2005-12-09 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2M AMMONIUM FORMATE, 0.1 M HEPES PH 8.0, 5% MPD
Resolution 1.90 Å R-free 0.212
2C9C Structural basis of the nucleotide driven conformational changes in the AAA domain of transcription activator PspF Deposited 2005-12-09 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：AAA DOMAIN, RESIDUES 1-265
Mutation：YES MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；2M AMMONIUM FORMATE, 0.1 M HEPES PH 8.0, 5% MPD
Resolution 2.10 Å R-free 0.198
2VII PspF1-275-Mg-AMP Deposited 2007-12-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–259（259 aa） Fragment：AAA DOMAIN, RESIDUES 1-259
Not recorded AMP ADENOSINE MONOPHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；0.1M TRIS-HCL PH 8.0, 2.0M AMMONIUM FORMATE, 10% MPD
Resolution 2.85 Å R-free 0.241
4QNM CRYSTAL STRUCTURE of PSPF(1-265) E108Q MUTANT Deposited 2014-06-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：Phage Shock protein F AAA DOMAIN, RESIDUES 1-265
Mutation：E108Q EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；292 K；100mM Bis-Tris pH 8.0, 12-16% MPD, 2M Ammonium formate, VAPOR DIFFUSION, SITTING DROP, temperature 292K
Resolution 1.63 Å R-free 0.203
4QNR CRYSTAL STRUCTURE OF PSPF(1-265) E108Q MUTANT bound to ATP Deposited 2014-06-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：Phage Shock protein F AAA DOMAIN, RESIDUES 1-265
Mutation：E108Q ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 GOL GLYCEROL × 2 EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；292 K；100mM Bis-Tris pH 8.0, 12-16% MPD, 2M Ammonium formate , VAPOR DIFFUSION, SITTING DROP, temperature 292K
Resolution 1.54 Å R-free 0.178
4QOS CRYSTAL STRUCTURE OF PSPF(1-265) E108Q MUTANT bound to ADP Deposited 2014-06-20 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–265（265 aa） Fragment：Phage Shock protein F AAA DOMAIN, RESIDUES 1-265
Mutation：E108Q ADP ADENOSINE-5'-DIPHOSPHATE × 1 GOL GLYCEROL × 1 EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；292 K；100mM Bis-Tris pH 8.0, 12-16% MPD, 2M Ammonium formate, VAPOR DIFFUSION, SITTING DROP, temperature 292K
Resolution 1.42 Å R-free 0.190
5NSS Cryo-EM structure of RNA polymerase-sigma54 holoenzyme with promoter DNA and transcription activator PspF intermedate complex Deposited 2017-04-26 Assembly 1 Insufficient information Heteromer；Protein × 12 PDB declaration: octameric（8） Review required
Chain F 1–275（275 aa）
Chain G 1–275（275 aa）
Chain J 1–275（275 aa）
Chain K 1–275（275 aa）
Chain L 1–275（275 aa）
Chain N 1–275（275 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
9Q90 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain 1 1–275（275 aa）
Chain 2 1–275（275 aa）
Chain 3 1–275（275 aa）
Chain 4 1–275（275 aa）
Chain 5 1–275（275 aa）
Chain 6 1–275（275 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 4 MG MAGNESIUM ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
9Q91 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 6 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain 1 1–259（259 aa）
Chain 2 1–259（259 aa）
Chain 3 1–259（259 aa）
Chain 4 1–259（259 aa）
Chain 5 1–259（259 aa）
Chain 6 1–259（259 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.20 Å
9Q92 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 5 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain 1 1–259（259 aa）
Chain 2 1–259（259 aa）
Chain 3 1–259（259 aa）
Chain 4 1–259（259 aa）
Chain 5 1–259（259 aa）
Chain 6 1–259（259 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.80 Å
9Q93 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 4 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain 1 1–259（259 aa）
Chain 2 1–259（259 aa）
Chain 3 1–259（259 aa）
Chain 4 1–259（259 aa）
Chain 5 1–259（259 aa）
Chain 6 1–259（259 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.60 Å
9Q94 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 3 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric（14） Consistent with all polymers
Chain 1 1–275（275 aa）
Chain 2 1–275（275 aa）
Chain 3 1–275（275 aa）
Chain 4 1–275（275 aa）
Chain 5 1–275（275 aa）
Chain 6 1–275（275 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.80 Å
9Q95 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -10 to -1 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric（14） Consistent with all polymers
Chain 1 1–275（275 aa）
Chain 2 1–275（275 aa）
Chain 3 1–275（275 aa）
Chain 4 1–275（275 aa）
Chain 5 1–275（275 aa）
Chain 6 1–275（275 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.80 Å
9Q97 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 2 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric（14） Consistent with all polymers
Chain 1 1–259（259 aa）
Chain 2 1–259（259 aa）
Chain 3 1–259（259 aa）
Chain 4 1–259（259 aa）
Chain 5 1–259（259 aa）
Chain 6 1–259（259 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
9Q98 CryoEM structure of bacterial transcription intermediate complex mediated by activator PspF containing nifH promoter DNA containing mismatch from -11 to -8 - conformation 1 Deposited 2025-02-26 Assembly 1 Protein–DNA Heteromer；Protein × 12 PDB declaration: tetradecameric（14） Consistent with all polymers
Chain 1 1–259（259 aa）
Chain 2 1–259（259 aa）
Chain 3 1–259（259 aa）
Chain 4 1–259（259 aa）
Chain 5 1–259（259 aa）
Chain 6 1–259（259 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 5 AF3 ALUMINUM FLUORIDE × 5 MG MAGNESIUM ION × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.30 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.