← Back to search

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：P03051 New Search
19PDB entries
27Biological assembly
45chain/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
1B6Q ALANINE 31 PROLINE MUTANT OF ROP PROTEIN Deposited 1999-01-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Mutation：A31P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.3；pH 4.3
Resolution 1.80 Å R-free 0.240
1F4M P3(2) CRYSTAL STRUCTURE OF ALA2ILE2-6, A VERSION OF ROP WITH A REPACKED HYDROPHOBIC CORE AND A NEW FOLD. Deposited 2000-06-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；MPD, calcium chloride, sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.25 Å R-free 0.282
1F4M P3(2) CRYSTAL STRUCTURE OF ALA2ILE2-6, A VERSION OF ROP WITH A REPACKED HYDROPHOBIC CORE AND A NEW FOLD. Deposited 2000-06-08 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–63（63 aa）
Chain D 1–63（63 aa）
Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；MPD, calcium chloride, sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.25 Å R-free 0.282
1F4M P3(2) CRYSTAL STRUCTURE OF ALA2ILE2-6, A VERSION OF ROP WITH A REPACKED HYDROPHOBIC CORE AND A NEW FOLD. Deposited 2000-06-08 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 1–63（63 aa）
Chain F 1–63（63 aa）
Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；MPD, calcium chloride, sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.25 Å R-free 0.282
1F4N C2 CRYSTAL STRUCTURE OF ALA2ILE2-6, A VERSION OF ROP WITH A REPACKED HYDROPHOBIC CORE AND A NEW FOLD. Deposited 2000-06-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A CA CALCIUM ION × 4 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；MPD, calcium chloride, sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 1.90 Å R-free 0.237
1F4N C2 CRYSTAL STRUCTURE OF ALA2ILE2-6, A VERSION OF ROP WITH A REPACKED HYDROPHOBIC CORE AND A NEW FOLD. Deposited 2000-06-08 Assembly 2 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A Mutation：M1G,A8I,T19A,L22I,L26A,Q34I,C38A,L41I,L48I,C52A CA CALCIUM ION × 8 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；MPD, calcium chloride, sodium HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 1.90 Å R-free 0.237
1GMG ALANINE 31 PROLINE MUTANT OF ROP PROTEIN, MONOCLINIC FORM Deposited 2001-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Mutation：YES No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.8；37% (V/V) ETHANOL, 450 MM NACL, 50 MM CITRATE BUFFER PH4.8, 1MM EDTA, USING THE DIALYSIS METHOD., pH 4.80
Resolution 1.90 Å R-free 0.232
1GMG ALANINE 31 PROLINE MUTANT OF ROP PROTEIN, MONOCLINIC FORM Deposited 2001-09-13 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–63（63 aa）
Mutation：YES No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.8；37% (V/V) ETHANOL, 450 MM NACL, 50 MM CITRATE BUFFER PH4.8, 1MM EDTA, USING THE DIALYSIS METHOD., pH 4.80
Resolution 1.90 Å R-free 0.232
1GTO HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT Deposited 1996-04-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–62（61 aa）
Mutation：M1G, D30G No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.82 Å R-free 0.280
1GTO HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT Deposited 1996-04-23 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 2–62（61 aa）
Chain C 2–62（61 aa）
Mutation：M1G, D30G Mutation：M1G, D30G No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.82 Å R-free 0.280
1NKD ATOMIC RESOLUTION (1.07 ANGSTROMS) STRUCTURE OF THE ROP MUTANT <2AA> Deposited 1997-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Mutation：INS(A-D31-A) No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.09 Å R-free 0.134
1QX8 Crystal structure of a five-residue deletion mutant of the Rop protein Deposited 2003-09-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：Deletion [30D-34Q] Mutation：Deletion [30D-34Q] No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.2；293 K；NaCl, methanol, Bis-Tris, DTT, EDTA, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.02 Å R-free 0.212
1ROP STRUCTURE OF THE COL*E1 ROP PROTEIN AT 1.7 ANGSTROMS RESOLUTION Deposited 1991-04-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.70 Å
1RPO RESTORED HEPTAD PATTERN CONTINUITY DOES NOT ALTER THE FOLDING OF A 4-ALPHA-HELICAL BUNDLE Deposited 1994-08-25 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.40 Å
1RPR THE STRUCTURE OF COLE1 ROP IN SOLUTION Deposited 1991-10-09 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1YO7 Re-engineering topology of the homodimeric ROP protein into a single-chain 4-helix bundle Deposited 2005-01-26 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–56（56 aa）
Chain A 32–56（25 aa）
Chain A 3–29（27 aa）
Mutation：R55S Mutation：R55S Mutation：R55S ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；10% PEG 2000, 50mM Tris-HCl pH6.6, 40mM MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.80 Å R-free 0.310
1YO7 Re-engineering topology of the homodimeric ROP protein into a single-chain 4-helix bundle Deposited 2005-01-26 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–56（56 aa）
Chain B 32–56（25 aa）
Chain B 3–29（27 aa）
Mutation：R55S Mutation：R55S Mutation：R55S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；10% PEG 2000, 50mM Tris-HCl pH6.6, 40mM MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.80 Å R-free 0.310
2GHY Novel Crystal Form of the ColE1 Rom Protein Deposited 2006-03-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；295 K；30% PEG MME 2000, 0.1M sodium acetate, pH4.6, and 0.2M ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.50 Å R-free 0.263
2IJH Crystal structure analysis of ColE1 ROM mutant F14W Deposited 2006-09-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G, F14W Mutation：M1G, F14W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；273 K；Well solution: 20% glycerol, 0.1 M sodium acetate pH 5.5, 0.1 M sodium chloride. Protein solution: protein 5 mg/ml, 0.01 M Tris pH 6.8, 0.05 M sodium chloride. Drops: equal volumes of well and protein solutions., VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 1.80 Å R-free 0.230
2IJH Crystal structure analysis of ColE1 ROM mutant F14W Deposited 2006-09-29 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–63（63 aa）
Mutation：M1G, F14W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；273 K；Well solution: 20% glycerol, 0.1 M sodium acetate pH 5.5, 0.1 M sodium chloride. Protein solution: protein 5 mg/ml, 0.01 M Tris pH 6.8, 0.05 M sodium chloride. Drops: equal volumes of well and protein solutions., VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 1.80 Å R-free 0.230
2IJI Structure of F14H mutant of ColE1 Rom protein Deposited 2006-09-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Mutation：M1G, F14H No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；1uL protein solution (0.5-1 mM) was mixed with 1 uL well buffer (0.1M sodium acetate pH 5.5, 0.1M sodium chloride, 37 40% ethanol, and 20% glycerol), VAPOR DIFFUSION, HANGING DROP
Resolution 2.30 Å R-free 0.292
2IJJ Crystal structure analysis of ColE1 ROM mutant F14Y Deposited 2006-09-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G, F14Y Mutation：M1G, F14Y No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；273 K；Well solution: 22% MPD, 0.1 M sodium acetate pH 5.5, 0.1 M sodium chloride. Protein solution: protein 2.5 mg/ml, 0.01 M Tris pH 6.5, 0.05 M sodium chloride. Drops: equal volumes of well and protein solutions., VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 1.90 Å R-free 0.263
2IJJ Crystal structure analysis of ColE1 ROM mutant F14Y Deposited 2006-09-29 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–63（63 aa）
Mutation：M1G, F14Y No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；273 K；Well solution: 22% MPD, 0.1 M sodium acetate pH 5.5, 0.1 M sodium chloride. Protein solution: protein 2.5 mg/ml, 0.01 M Tris pH 6.5, 0.05 M sodium chloride. Drops: equal volumes of well and protein solutions., VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 1.90 Å R-free 0.263
2IJK Structure of a Rom protein dimer at 1.55 angstrom resolution Deposited 2006-09-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：M1G Mutation：M1G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；Hanging drop contained 1 uL protein/RNA mixture (0.3 0.4 mM complex) and 1 uL well buffer (50 mM sodium cacodylate pH 6.0, 0.1 M potassium chloride, 25 mM magnesium chloride, and 15% isopropanol)., VAPOR DIFFUSION, HANGING DROP
Resolution 1.55 Å R-free 0.216
3K79 C38A, C52V Cysteine-Free Variant of Rop (Rom) Deposited 2009-10-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–63（62 aa）
Mutation：C38A, C52V No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；25-30% methanol, 100 mM MES, 300 mM NaCl, 10% glycerol, pH 5.7-5.9, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.96 Å R-free 0.250
4DO2 Crystal Structure of the Rop protein mutant D30P/A31G at resolution 1.4 resolution. Deposited 2012-02-09 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–63（63 aa）
Chain B 1–63（63 aa）
Mutation：D30P, A31G Mutation：D30P, A31G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.4；291 K；45%(v/v) methanol, 50 mM HEPES pH 6.4 and 100 mM Li2SO4, pH 6.4, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 1.40 Å R-free 0.188
7KAE Rop protein variant with a buried tryptophan Deposited 2020-09-30 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–57（56 aa） Fragment：engineered variant
Chain B 2–57（56 aa） Fragment：engineered variant
Mutation：R16Q, S17N, L20Q, C38A, C52A, F56W Mutation：R16Q, S17N, L20Q, C38A, C52A, F56W No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.5；295 K；28% (w/v) PEG 400, 300 mM NaCl, 100 mM NaHEPES
Resolution 1.60 Å R-free 0.224

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.