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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：P05154 New Search
5PDB entries
9Biological assembly
16chain/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
1LQ8 Crystal structure of cleaved protein C inhibitor Deposited 2002-05-09 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 30–375（346 aa） Fragment：N-terminal fragment from elastase cleavage, residues 30-375
Chain B 376–406（31 aa） Fragment：C-terminal fragment from elastase cleavage, residues 376-405
Not recorded IPA ISOPROPYL ALCOHOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；PEG 3350, sodium fluoride, isopropanol, pH 7, VAPOR DIFFUSION, HANGING DROP at 293K
Resolution 2.40 Å R-free 0.279
1LQ8 Crystal structure of cleaved protein C inhibitor Deposited 2002-05-09 Assembly 2 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 30–375（346 aa） Fragment：N-terminal fragment from elastase cleavage, residues 30-375
Chain D 376–406（31 aa） Fragment：C-terminal fragment from elastase cleavage, residues 376-405
Not recorded IPA ISOPROPYL ALCOHOL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；PEG 3350, sodium fluoride, isopropanol, pH 7, VAPOR DIFFUSION, HANGING DROP at 293K
Resolution 2.40 Å R-free 0.279
1LQ8 Crystal structure of cleaved protein C inhibitor Deposited 2002-05-09 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 30–375（346 aa） Fragment：N-terminal fragment from elastase cleavage, residues 30-375
Chain F 376–406（31 aa） Fragment：C-terminal fragment from elastase cleavage, residues 376-405
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；PEG 3350, sodium fluoride, isopropanol, pH 7, VAPOR DIFFUSION, HANGING DROP at 293K
Resolution 2.40 Å R-free 0.279
1LQ8 Crystal structure of cleaved protein C inhibitor Deposited 2002-05-09 Assembly 4 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain G 30–375（346 aa） Fragment：N-terminal fragment from elastase cleavage, residues 30-375
Chain H 376–406（31 aa） Fragment：C-terminal fragment from elastase cleavage, residues 376-405
Not recorded IPA ISOPROPYL ALCOHOL × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；PEG 3350, sodium fluoride, isopropanol, pH 7, VAPOR DIFFUSION, HANGING DROP at 293K
Resolution 2.40 Å R-free 0.279
2HI9 Crystal Structure of human native protein C inhibitor Deposited 2006-06-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 44–406（363 aa） Fragment：residues 25-387
Chain B 44–406（363 aa） Fragment：residues 25-387
Chain C 44–406（363 aa） Fragment：residues 25-387
Not recorded CIT CITRIC ACID × 3 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；296 K；66.7mM tri-potassium citrate, 6.7% PEG3350, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 2.30 Å R-free 0.269
2OL2 High Resolution Structure of Native PCI in Space Group P21 Deposited 2007-01-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 36–406（371 aa）
Not recorded GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；6% PEG 3350, 0.04M ammonium citrate,10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.00 Å R-free 0.271
2OL2 High Resolution Structure of Native PCI in Space Group P21 Deposited 2007-01-18 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 36–406（371 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；6% PEG 3350, 0.04M ammonium citrate,10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.00 Å R-free 0.271
3B9F 1.6 A structure of the PCI-thrombin-heparin complex Deposited 2007-11-05 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain I 36–406（371 aa）
Not recorded SO4 SULFATE ION × 3 GOL GLYCEROL × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；295 K；11% PEG 3350, 0.12M MgSO4, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 1.60 Å R-free 0.234
3DY0 Crystal Structure of Cleaved PCI Bound to Heparin Deposited 2008-07-25 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 37–372（336 aa） Fragment：PPE cleaved, residues 37-372
Chain B 379–406（28 aa） Fragment：PPE cleaved, residues 379-406
Not recorded NO3 NITRATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；295 K；0.12M Lithium Nitrate, 12% PEG 3350, 25% Glycerol, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 1.55 Å R-free 0.217

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.