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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：P0ACP7 New Search
26PDB entries
26Biological assembly
28chain/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
1BDH PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1996-07-25 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：K55A HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.70 Å
1BDI PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1996-07-25 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.00 Å
1DBQ DNA-BINDING REGULATORY PROTEIN Deposited 1996-02-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 52–340（289 aa） Fragment：COREPRESSOR-FREE COREPRESSOR-BINDING DOMAIN
Chain B 52–340（289 aa） Fragment：COREPRESSOR-FREE COREPRESSOR-BINDING DOMAIN
Not recorded MG MAGNESIUM ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å
1JFS PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX Deposited 2001-06-21 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：W147F HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；295 K；PEG 4000, ammonium phosphate, ammonium sulfate, cobalt hexammine, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.90 Å
1JFT PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX Deposited 2001-06-21 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：W147A PO4 PHOSPHATE ION × 2 HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, ammonuim sulfate, ammonium phosphate, cobalt hexammine, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.50 Å
1JH9 PURINE REPRESSOR MUTANT-HYPOXANTHINE-PURF OPERATOR COMPLEX Deposited 2001-06-27 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：W147R PO4 PHOSPHATE ION × 4 HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, ammonium sulfate, ammonium phosphate, cobalt hexammine, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.55 Å
1JHZ Purine Repressor Mutant Corepressor Binding Domain Structure Deposited 2001-06-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 52–340（289 aa） Fragment：COREPRESSOR-FREE COREPRESSOR BINDING DOMAIN (Residues 53-341)
Chain B 52–340（289 aa） Fragment：COREPRESSOR-FREE COREPRESSOR BINDING DOMAIN (Residues 53-341)
Mutation：W147F Mutation：W147F MG MAGNESIUM ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.6；298 K；PEG 600, magnesium chloride, Tris HCl, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.40 Å
1PNR PURINE REPRESSOR-HYPOXANTHINE-PURF-OPERATOR COMPLEX Deposited 1995-03-29 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.70 Å
1PRU PURINE REPRESSOR DNA-BINDING DOMAIN DNA BINDING Deposited 1995-05-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–55（55 aa） Fragment：DNA-BINDING
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1PRV PURINE REPRESSOR DNA-BINDING DOMAIN DNA BINDING Deposited 1995-05-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–55（55 aa） Fragment：DNA-BINDING
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1QP0 PURINE REPRESSOR-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, (NH4)2SO4, [Co(NH3)6]Cl3, Na2SO4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å
1QP4 PURINE REPRESSOR-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, (NH4)2SO4, [CO(NH3)6]CL3, NA2SO4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.00 Å
1QP7 PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：K55A HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, (NH4)3PO4, [CO(NH3)6]CL3, NA2SO4, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å
1QPZ PURINE REPRESSOR-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1QQA PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：K55A HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, (NH4)3PO4, (NH4)2SO4, [CO(NH3)6]CL3, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.00 Å
1QQB PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX Deposited 1999-06-01 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 4000, (NH4)3PO4, (NH4)2SO4, [CO(NH3)6]CL3, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.70 Å
1VPW STRUCTURE OF THE PURR MUTANT, L54M, BOUND TO HYPOXANTHINE AND PURF OPERATOR DNA Deposited 1998-02-27 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：L54M HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.70 Å
1WET STRUCTURE OF THE PURR-GUANINE-PURF OPERATOR COMPLEX Deposited 1997-04-27 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded GUN GUANINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；pH 7.50, VAPOR DIFFUSION, HANGING DROP
Resolution 2.60 Å
1ZAY PURINE REPRESSOR-HYPOXANTHINE-MODIFIED-PURF-OPERATOR COMPLEX Deposited 1998-12-16 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Not recorded HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；pH 7.5, VAPOR DIFFUSION, HANGING DROP
Resolution 2.70 Å
2PUA CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190A 6MP 6-METHYLPURINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.90 Å
2PUB CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190A ADE ADENINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.70 Å
2PUC CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190A GUN GUANINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.60 Å
2PUD CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190Q HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；pH 7.50, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.60 Å
2PUE CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190Q ADE ADENINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.70 Å
2PUF CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190Q GUN GUANINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 3.00 Å
2PUG CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES Deposited 1997-10-04 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–340（340 aa）
Mutation：R190Q HPA HYPOXANTHINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.40, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K
Resolution 2.70 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.