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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：Q46938 New Search
2PDB entries
8Biological assembly
10chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain E 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1X8M X-ray structure of pectin degrading enzyme 5-keto 4-deoxyuronate isomerase from Escherichia coli Deposited 2004-08-18 Assembly 6 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain F 2–278（277 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；Sodium Citrate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.280
1XRU Crystal Structure of 5-keto-4-deoxyuronate Isomerase from Eschericia coli Deposited 2004-10-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–278（278 aa）
Chain B 1–278（278 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) ZN ZINC ION × 6 1PE PENTAETHYLENE GLYCOL × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7；277 K；PEG 400, calcium chloride, HEPES, pH 7, VAPOR DIFFUSION, temperature 277K
Resolution 1.94 Å R-free 0.191
1XRU Crystal Structure of 5-keto-4-deoxyuronate Isomerase from Eschericia coli Deposited 2004-10-15 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–278（278 aa）
Chain B 1–278（278 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) ZN ZINC ION × 2 1PE PENTAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7；277 K；PEG 400, calcium chloride, HEPES, pH 7, VAPOR DIFFUSION, temperature 277K
Resolution 1.94 Å R-free 0.191

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.