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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：P04080 New Search
3PDB entries
12Biological assembly
13chain/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
1STF THE REFINED 2.4 ANGSTROMS X-RAY CRYSTAL STRUCTURE OF RECOMBINANT HUMAN STEFIN B IN COMPLEX WITH THE CYSTEINE PROTEINASE PAPAIN: A NOVEL TYPE OF PROTEINASE INHIBITOR INTERACTION Deposited 1993-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–98（98 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.37 Å
2OCT Stefin B (Cystatin B) tetramer Deposited 2006-12-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–98（98 aa）
Chain B 1–98（98 aa）
Mutation：C3S, P79S Mutation：C3S, P79S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；295 K；30 % MPD, 0.1 M HEPES, 1.4-butanediol as additive, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Resolution 1.40 Å R-free 0.189
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 2 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 10 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 5 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 1 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 9 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 8 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 7 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 6 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 6 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 7 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 4 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 8 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 3 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234
4N6V Partial rotational order disorder structure of human stefin B Deposited 2013-10-14 Assembly 9 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain 0 8–98（91 aa） Fragment：UNP residues 8-98
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 10.5；293 K；0.1M CAPS buffer, 0.2M Li2SO4, 2M ammonium sulfate, pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 1.80 Å R-free 0.234

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.