← 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：P03050 New Search
10PDB entries
12Biological assembly
30chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification Different assembly state 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
1ARQ RELAXATION MATRIX REFINEMENT OF THE SOLUTION STRUCTURE OF THE ARC REPRESSOR Deposited 1993-08-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1ARR RELAXATION MATRIX REFINEMENT OF THE SOLUTION STRUCTURE OF THE ARC REPRESSOR Deposited 1993-08-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1B28 ARC REPRESSOR MYL MUTANT FROM SALMONELLA BACTERIOPHAGE P22 Deposited 1998-12-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Mutation：CHAIN A: R31M,E36Y,R40L, CHAIN B: R131M,E136Y,R140L Mutation：CHAIN A: R31M,E36Y,R40L, CHAIN B: R131M,E136Y,R140L No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 4.5；303 K；Ionic strength (raw mmCIF value) 50 mM KPI, 150 mM NACL
Resolution not provided
1BAZ ARC REPRESSOR MUTANT PHE10VAL Deposited 1998-04-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Chain C 1–53（53 aa）
Chain D 1–53（53 aa）
Mutation：F10V Mutation：F10V Mutation：F10V Mutation：F10V No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；PROTEIN WAS CRYSTALLIZED FROM 40-45% SATURATED AMMONIUM PHOSPHATE, PH 8.0, BY MACROSEEDING USING CRYSTALS OF THE WILD TYPE PROTEIN
Resolution 1.90 Å R-free 0.273
1BDT WILD TYPE GENE-REGULATING PROTEIN ARC/DNA COMPLEX Deposited 1998-05-11 Assembly 1 Protein–DNA Homooligomer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Chain C 1–53（53 aa）
Chain D 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.5；pH 4.5
Resolution 2.50 Å R-free 0.282
1MYK CRYSTAL STRUCTURE, FOLDING, AND OPERATOR BINDING OF THE HYPERSTABLE ARC REPRESSOR MUTANT PL8 Deposited 1994-10-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.277
1MYL SUBSTITUTING HYDROPHOBIC RESIDUES FOR A BURIED SALT BRIDGE ENHANCES PROTEIN STABILITY BUT DOES NOT REDUCE CONFORMATIONAL SPECIFICITY Deposited 1994-10-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.293
1MYL SUBSTITUTING HYDROPHOBIC RESIDUES FOR A BURIED SALT BRIDGE ENHANCES PROTEIN STABILITY BUT DOES NOT REDUCE CONFORMATIONAL SPECIFICITY Deposited 1994-10-06 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 1–53（53 aa）
Chain F 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.293
1MYL SUBSTITUTING HYDROPHOBIC RESIDUES FOR A BURIED SALT BRIDGE ENHANCES PROTEIN STABILITY BUT DOES NOT REDUCE CONFORMATIONAL SPECIFICITY Deposited 1994-10-06 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–53（53 aa）
Chain D 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å R-free 0.293
1NLA Solution Structure of Switch Arc, a Mutant with 3(10) Helices Replacing a Wild-Type Beta-Ribbon Deposited 2003-01-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Mutation：N11L, L12N Mutation：N11L, L12N No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 4.8；303 K；Ionic strength (raw mmCIF value) 20mM phosphate；Pressure ambient
NMR measurement conditions pH 4.8；303 K；Ionic strength (raw mmCIF value) 20 mM phosphate；Pressure ambient
NMR measurement conditions pH 4.67；303 K；Ionic strength (raw mmCIF value) 20 mM phosphate, 150 mM KCl；Pressure ambient
NMR sample composition 4 mM uniform 15N-labelled Arc repressor NL11/LN12 (Switch Arc) | 90% H2O/10% D2O
NMR sample composition 7.5 mM 10% 13C-labelled Arc repressor NL11/LN12 (Switch Arc) | 90% H2O, 10% D20
NMR sample composition 5 mM uniform 15N-labelled Arc repressor NL11/LN12 (Switch Arc) | 100% D2O
Resolution not provided
1PAR DNA RECOGNITION BY BETA-SHEETS IN THE ARC REPRESSOR-OPERATOR CRYSTAL STRUCTURE Deposited 1994-03-22 Assembly 1 Protein–DNA Homooligomer；Protein × 4 PDB declaration: hexameric（6） Consistent with all polymers
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Chain C 1–53（53 aa）
Chain D 1–53（53 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；pH 7.40, VAPOR DIFFUSION, HANGING DROP
Resolution 2.60 Å
1QTG AVERAGED NMR MODEL OF SWITCH ARC, A DOUBLE MUTANT OF ARC REPRESSOR Deposited 1999-06-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–53（53 aa）
Chain B 1–53（53 aa）
Mutation：N11L, L12N Mutation：N11L, L12N No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided

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.