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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：Q45488 New Search
3PDB entries
3Biological assembly
5chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification Different assembly state Different ligand/ion 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
1D2I CRYSTAL STRUCTURE OF RESTRICTION ENDONUCLEASE BGLII COMPLEXED WITH DNA 16-MER Deposited 1999-09-23 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–223（223 aa）
Chain B 1–223（223 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions MICROBATCH；pH 5.2；293 K；15- 20% PEG 4000, 0.2 M AMMONIUM SULFATE, 0.1 M MES PH 5.2, MICROBATCH, temperature 293K
Resolution 1.70 Å R-free 0.200
1DFM Crystal structure of restriction endonuclease BGLII complexed with DNA 16-mer Deposited 1999-12-06 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–223（223 aa） Fragment：BGLII
Chain B 1–223（223 aa） Fragment：BGLII
Mutation：SELENOMETHIONYL (MSE FOR MET) Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：SELENOMETHIONYL (MSE FOR MET) Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.2；293 K；15- 20% PEG 4000, 0.2 M (NH4)2SO4, 0.1 M MES PH 5.2. CRYSTALS WERE LATER SOAKED WITH 5MM CACL2., VAPOR DIFFUSION, HANGING DROP
Resolution 1.50 Å R-free 0.224
1ES8 Crystal structure of free BglII Deposited 2000-04-07 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–223（223 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) ACY ACETIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；277 K；30% isopropanol, 0.2 M sodium acetate, 0.1 M Bis-tris, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.30 Å R-free 0.258

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.