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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：P23940 New Search
5PDB entries
5Biological assembly
9chain/assembly records
Main Difference Dimensions in This Set
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
1BAM STRUCTURE OF RESTRICTION ENDONUCLEASE BAMHI PHASED AT 1.95 ANGSTROMS RESOLUTION BY MAD ANALYSIS Deposited 1994-12-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–213（213 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å
1BHM RESTRICTION ENDONUCLEASE BAMHI COMPLEX WITH DNA Deposited 1995-07-12 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–213（213 aa）
Chain B 1–213（213 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；VAPOR DIFFUSION, HANGING DROP
Resolution 2.20 Å
1ESG RESTRICTION ENDONUCLEASE BAMHI BOUND TO A NON-SPECIFIC DNA. Deposited 2000-04-09 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–213（213 aa）
Chain B 1–213（213 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.8；293 K；30% MPD, 10 mM sodium acetate (pH 4.8), 5 mM CaCl2, VAPOR DIFFUSION, HANGING DROP, temperature 20K
Resolution 1.90 Å R-free 0.230
2BAM RESTRICTION ENDONUCLEASE BAMHI COMPLEX WITH DNA AND CALCIUM IONS (PRE-REACTIVE COMPLEX). Deposited 1998-08-19 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain A 1–213（213 aa）
Chain B 1–213（213 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.3；12-14% PEG8000, 0.1M MES (PH 5.3), 0.15M KCL, 5% GLYCEROL
Resolution 2.00 Å R-free 0.251
3BAM RESTRICTION ENDONUCLEASE BAMHI COMPLEX WITH DNA AND MANGANESE IONS (POST-REACTIVE COMPLEX) Deposited 1998-08-19 Assembly 1 Protein–DNA Homooligomer；Protein × 2 PDB declaration: pentameric（5） Consistent with all polymers
Chain A 1–213（213 aa）
Chain B 1–213（213 aa）
Not recorded MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.3；pH 5.3 CATALYSIS OCCURRED IN THE CRYSTAL AFTER SOAKING MANGANESE ION. THE ACTIVE SITE OF THE R SUBUNIT CLEAVED THE ORIGINAL D STRAND IN TWO (D AND E) RESULTING IN A POST-REACTIVE COMPLEX.
Resolution 1.80 Å R-free 0.268

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.