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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：P17888 New Search
10PDB entries
20Biological assembly
37chain/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
2D7E Crystal structure of N-terminal domain of PriA from E.coli Deposited 2005-11-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–105（105 aa） Fragment：DNA binding domein
Chain B 1–105（105 aa） Fragment：DNA binding domein
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；0.1M sodium citrate, 0.3M ammonium sulfate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.50 Å R-free 0.292
2D7E Crystal structure of N-terminal domain of PriA from E.coli Deposited 2005-11-18 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–105（105 aa） Fragment：DNA binding domein
Chain D 1–105（105 aa） Fragment：DNA binding domein
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；0.1M sodium citrate, 0.3M ammonium sulfate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.50 Å R-free 0.292
2D7E Crystal structure of N-terminal domain of PriA from E.coli Deposited 2005-11-18 Assembly 3 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–105（105 aa） Fragment：DNA binding domein
Chain B 1–105（105 aa） Fragment：DNA binding domein
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；0.1M sodium citrate, 0.3M ammonium sulfate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.50 Å R-free 0.292
2D7E Crystal structure of N-terminal domain of PriA from E.coli Deposited 2005-11-18 Assembly 4 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain C 1–105（105 aa） Fragment：DNA binding domein
Chain D 1–105（105 aa） Fragment：DNA binding domein
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；0.1M sodium citrate, 0.3M ammonium sulfate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.50 Å R-free 0.292
2D7G Crystal structure of the aa complex of the N-terminal domain of PriA Deposited 2005-11-21 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：residues 1-105
Chain B 1–105（105 aa） Fragment：residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；12% PEG 6000, 0.1M sodium acetate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.30 Å R-free 0.309
2D7G Crystal structure of the aa complex of the N-terminal domain of PriA Deposited 2005-11-21 Assembly 2 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain C 1–105（105 aa） Fragment：residues 1-105
Chain D 1–105（105 aa） Fragment：residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；293 K；12% PEG 6000, 0.1M sodium acetate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.30 Å R-free 0.309
2D7H Crystal structure of the ccc complex of the N-terminal domain of PriA Deposited 2005-11-21 Assembly 1 Protein–DNA Homooligomer；Protein × 4 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：residues 1-105
Chain B 1–105（105 aa） Fragment：residues 1-105
Chain C 1–105（105 aa） Fragment：residues 1-105
Chain D 1–105（105 aa） Fragment：residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.6；293 K；0.1M sodium citrate, 0.2M ammonium sulfate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.00 Å R-free 0.293
2DWL Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：Residues 1-105
Chain B 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.8；293 K；0.1M sodium citrate, 0.2M ammonium sulfate, pH 3.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.302
2DWL Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 2 Protein–DNA Homooligomer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain C 1–105（105 aa） Fragment：Residues 1-105
Chain D 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.8；293 K；0.1M sodium citrate, 0.2M ammonium sulfate, pH 3.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.302
2DWM Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：Residues 1-105
Chain B 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.8；293 K；0.1M sodium citrate, 0.2M ammonium sulfate, pH 3.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.15 Å R-free 0.318
2DWM Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 2 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain C 1–105（105 aa） Fragment：Residues 1-105
Chain D 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.8；293 K；0.1M sodium citrate, 0.2M ammonium sulfate, pH 3.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.15 Å R-free 0.318
2DWN Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：Residues 1-105
Chain B 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.6；293 K；0.1M sodium citrate, 0.4M ammonium sulfate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.35 Å R-free 0.333
2DWN Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 2 Protein–DNA Homooligomer；Protein × 2 PDB declaration: trimeric（3） Consistent with all polymers
Chain C 1–105（105 aa） Fragment：Residues 1-105
Chain D 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.6；293 K；0.1M sodium citrate, 0.4M ammonium sulfate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.35 Å R-free 0.333
2DWN Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 3 Protein–DNA Homooligomer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–105（105 aa） Fragment：Residues 1-105
Chain B 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.6；293 K；0.1M sodium citrate, 0.4M ammonium sulfate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.35 Å R-free 0.333
2DWN Crystal structure of the PriA protein complexed with oligonucleotides Deposited 2006-08-15 Assembly 4 Protein–DNA Homooligomer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain C 1–105（105 aa） Fragment：Residues 1-105
Chain D 1–105（105 aa） Fragment：Residues 1-105
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.6；293 K；0.1M sodium citrate, 0.4M ammonium sulfate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.35 Å R-free 0.333
6DCR E. coli PriA helicase winged helix domain deletion protein Deposited 2018-05-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–732（732 aa）
Mutation：delta 114-174 ZN ZINC ION × 2 SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；297 K；50 mM HEPES-HCl pH 7.5, 9.5 % PEG 4000, 4 % Isopropanol, 8 % glycerol, 50 mM sodium malonate, and 25-100 mM sodium fluoride
Resolution 1.98 Å R-free 0.215
6DCR E. coli PriA helicase winged helix domain deletion protein Deposited 2018-05-08 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–732（732 aa）
Mutation：delta 114-174 ZN ZINC ION × 2 SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；297 K；50 mM HEPES-HCl pH 7.5, 9.5 % PEG 4000, 4 % Isopropanol, 8 % glycerol, 50 mM sodium malonate, and 25-100 mM sodium fluoride
Resolution 1.98 Å R-free 0.215
8FAK DNA replication fork binding triggers structural changes in the PriA DNA helicase that regulate the PriA-PriB replication restart pathway in E. coli Deposited 2022-11-28 Assembly 1 Protein–DNA Heteromer；Protein × 3 PDB declaration: hexameric（6） Consistent with all polymers
Chain H 1–732（732 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.22 Å
9ZBT Visualization of PriA/PriB/DnaT complexes reveals mechanisms governing structure-specific assembly of the DNA replication restart primosome Deposited 2025-11-21 Assembly 1 Protein–DNA Heteromer；Protein × 4 PDB declaration: heptameric（7） Consistent with all polymers
Chain H 1–732（732 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；50 mM Tris-HCl, pH 8, 2 mM dithiothreitol, 5 mM ethylenediaminetetraacetic acid, 75 mM NaCl
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.22 Å
9ZBU Visualization of PriA/PriB/DnaT complexes reveals mechanisms governing structure-specific assembly of the DNA replication restart primosome Deposited 2025-11-21 Assembly 1 Protein–DNA Heteromer；Protein × 10 PDB declaration: tridecameric（13） Consistent with all polymers
Chain H 2–732（731 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；50 mM Tris-HCl, pH 8, 2 mM dithiothreitol, 5 mM ethylenediaminetetraacetic acid, 75 mM NaCl
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 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.