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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：P39765 New Search
3PDB entries
3Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
1A3C PYRR, THE BACILLUS SUBTILIS PYRIMIDINE BIOSYNTHETIC OPERON REPRESSOR, DIMERIC FORM Deposited 1998-01-20 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–181（181 aa）
Not recorded SM SAMARIUM (III) ION × 4 SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.1；PROTEIN WAS CRYSTALLIZED FROM 13-16% PEG 6000, 300 MM AMMONIUM SULFATE, 0.2% BETA-OCTYLGLUCOSIDE, 50 MM SODIUM SUCCINATE, PH 5.1, AND 1 MM SAMARIUM NITRATE.
Resolution 1.60 Å R-free 0.233
1A4X PYRR, THE BACILLUS SUBTILIS PYRIMIDINE BIOSYNTHETIC OPERON REPRESSOR, HEXAMERIC FORM Deposited 1998-02-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–181（181 aa）
Chain B 1–181（181 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.1；PROTEIN WAS CRYSTALLIZED FROM 14-16% PEG 6000, 300 MM AMMONIUM SULFATE, 0.2% BETA-OCTYLGLUCOSIDE, 50 MM SODIUM SUCCINATE, PH 5.1. HEXAGONAL SETTING FOR R 3 2.
Resolution 2.30 Å R-free 0.247
4P82 Structure of PyrR protein from Bacillus subtilis Deposited 2014-03-30 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–179（178 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 4.5；293 K；2.5 M NaCl, 0.1M Acetate pH 4.5, 0.2M Li2SO4
Resolution 1.30 Å R-free 0.206

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.