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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：P55854 New Search
8PDB entries
13Biological assembly
14chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
1U4A Solution structure of human SUMO-3 C47S Deposited 2004-07-23 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 14–92（79 aa） Fragment：ubiquitin-like domain
Mutation：C47S No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.25；298 K；Ionic strength (raw mmCIF value) 25mM phosphate buffer, 75mM Nacl；Pressure 1
NMR sample composition 0.8mM 15N-labeled protein | 25mM phosphate buffer, 75mM Nacl 90% H2O, 10% D2O
NMR sample composition 0.6mM 13C,15N-labeled protein | 25mM phosphate buffer, 75mM Nacl 90% H2O, 10% D2O
Resolution not provided
2IO1 Crystal structure of human Senp2 in complex with preSUMO-3 Deposited 2006-10-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 14–103（90 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；291 K；7% PEG 4000, 0.1M Sodium acetate, 0.2M Magnesium chloride, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.60 Å R-free 0.230
2IO1 Crystal structure of human Senp2 in complex with preSUMO-3 Deposited 2006-10-09 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 14–103（90 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；291 K；7% PEG 4000, 0.1M Sodium acetate, 0.2M Magnesium chloride, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.60 Å R-free 0.230
2IO1 Crystal structure of human Senp2 in complex with preSUMO-3 Deposited 2006-10-09 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 14–103（90 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；291 K；7% PEG 4000, 0.1M Sodium acetate, 0.2M Magnesium chloride, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.60 Å R-free 0.230
2MP2 Solution structure of SUMO dimer in complex with SIM2-3 from RNF4 Deposited 2014-05-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 12–92（81 aa） Fragment：UNP residues 12-92
Chain B 2–90（89 aa） Fragment：UNP residues 2-90
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；303 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient
NMR sample composition 0.3 mM [U-99% 13C; U-99% 15N] SUMO 1, 0.3 mM SUMO 2, 1.0 mM RNF4, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 0.3 mM SUMO 1, 0.3 mM [U-99% 13C; U-99% 15N] SUMO 2, 1.0 mM RNF4, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 0.3 mM [U-99% 13C; U-99% 15N] SUMO 1, 0.3 mM SUMO 2, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 0.3 mM SUMO 1, 0.3 mM [U-99% 13C; U-99% 15N] SUMO 2, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
6K5R Complex of SUMO2 with Phosphorylated viral SIM IE2 Deposited 2019-05-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 15–91（77 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.4；298 K；Ionic strength (raw mmCIF value) 162.7；Pressure 1
NMR sample composition 0.3 mM [U-15N] SUMO2, 3 mM Phosphorylated SIM from viral protein IE2, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 1 mM [U-13C; U-15N] SUMO2, 1.5 mM Phosphorylated SIM from viral protein IE2, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 3 mM Phosphorylated SIM from viral protein IE2, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
6NNQ Non-covalent structure of SENP1 in complex with SUMO2 Deposited 2019-01-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 15–92（78 aa） Fragment：residues 15-92
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293.15 K；20% PEG 6000, 0.1M HEPES, pH 7.5
Resolution 2.62 Å R-free 0.277
7R2E Structure of human Senp7 with SUMO2 Deposited 2022-02-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 16–91（76 aa）
Not recorded AYE prop-2-en-1-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.1 M Sodium HEPES 7.0, 15 % w/v PEG 20,000
Resolution 1.74 Å R-free 0.230
7R2E Structure of human Senp7 with SUMO2 Deposited 2022-02-04 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 16–91（76 aa）
Not recorded AYE prop-2-en-1-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.1 M Sodium HEPES 7.0, 15 % w/v PEG 20,000
Resolution 1.74 Å R-free 0.230
7ZJU Structure of human USPL1 in covalent complex with SUMO3-2Br probe Deposited 2022-04-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 2–91（90 aa）
Not recorded ZN ZINC ION × 1 GOL GLYCEROL × 1 OXU 2-bromanylethanamine × 1 CL CHLORIDE ION × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.8；293 K；100 mM Tris pH 8.8, 19% PEG6000, 200 mM CaCl2
Resolution 2.17 Å R-free 0.238
7ZJU Structure of human USPL1 in covalent complex with SUMO3-2Br probe Deposited 2022-04-12 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 2–91（90 aa）
Not recorded ZN ZINC ION × 1 GOL GLYCEROL × 2 OXU 2-bromanylethanamine × 1 CL CHLORIDE ION × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.8；293 K；100 mM Tris pH 8.8, 19% PEG6000, 200 mM CaCl2
Resolution 2.17 Å R-free 0.238
9GNN Structure of SENP5 in complex with SUMO2 Deposited 2024-09-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 14–91（78 aa）
Not recorded AYE prop-2-en-1-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；0.2 M Sodium chloride, Phosphate/citrate 4.2, 20 % w/v PEG 8000
Resolution 2.36 Å R-free 0.283
9GNN Structure of SENP5 in complex with SUMO2 Deposited 2024-09-03 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 14–91（78 aa）
Not recorded AYE prop-2-en-1-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；0.2 M Sodium chloride, Phosphate/citrate 4.2, 20 % w/v PEG 8000
Resolution 2.36 Å R-free 0.283

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.