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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：P25445 New Search
7PDB entries
10Biological assembly
22chain/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
1DDF FAS DEATH DOMAIN, NMR, MINIMIZED AVERAGE STRUCTURE Deposited 1996-11-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 218–335（118 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 4
Resolution not provided
2NA7 Transmembrane domain of human Fas/CD95 death receptor Deposited 2015-12-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 171–198（28 aa） Fragment：Helical transmembrane residues 171-198
Chain B 171–198（28 aa） Fragment：Helical transmembrane residues 171-198
Chain C 171–198（28 aa） Fragment：Helical transmembrane residues 171-198
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.8；303 K；Ionic strength (raw mmCIF value) 50；Pressure ambient
NMR sample composition 1 mM [U-100% 13C; U-100% 15N] Human Fas Transmembrane Domain, 60 mM [U-100% 2H] acyl chains DMPC, 120 mM [U-100% 2H] acyl chains DHPC, 20 mM sodium phosphate, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1 mM [U-100% 13C; U-100% 15N; U-85% 2H] Human Fas Transmembrane Domain, 60 mM DMPC, 120 mM DHPC, 20 mM sodium phosphate, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 0.5 mM [U-100% 15N; U-100% 2H] Human Fas Transmembrane Domain, 0.5 mM [U-15% 13C] Human Fas Transmembrane Domain, 60 mM [U-100% 2H] acyl chains DMPC, 120 mM [U-100% 2H] acyl chains DHPC, 20 mM sodium phosphate, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
3EWT Crystal Structure of calmodulin complexed with a peptide Deposited 2008-10-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 230–254（25 aa） Fragment：Helix(1+2) of death domain
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 5.5；293 K；25%(w/v) PEG8000, 0.2M Sodium Acetate, 0.1M Sodium cacodylate, pH 5.5, EVAPORATION, temperature 293K
Resolution 2.40 Å R-free 0.259
3EZQ Crystal Structure of the Fas/FADD Death Domain Complex Deposited 2008-10-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Chain C 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Not recorded SO4 SULFATE ION × 2 NA SODIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 4；291 K；0.95M citric acid, 1.9M ammonium sulfate, pH4, EVAPORATION, temperature 291K
Resolution 2.73 Å R-free 0.278
3EZQ Crystal Structure of the Fas/FADD Death Domain Complex Deposited 2008-10-23 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Chain G 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Not recorded SO4 SULFATE ION × 3 NA SODIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 4；291 K；0.95M citric acid, 1.9M ammonium sulfate, pH4, EVAPORATION, temperature 291K
Resolution 2.73 Å R-free 0.278
3EZQ Crystal Structure of the Fas/FADD Death Domain Complex Deposited 2008-10-23 Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain I 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Chain K 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Not recorded SO4 SULFATE ION × 4 NA SODIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 4；291 K；0.95M citric acid, 1.9M ammonium sulfate, pH4, EVAPORATION, temperature 291K
Resolution 2.73 Å R-free 0.278
3EZQ Crystal Structure of the Fas/FADD Death Domain Complex Deposited 2008-10-23 Assembly 4 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain M 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Chain O 223–335（113 aa） Fragment：Fas DD, UNP residues 223-335
Not recorded SO4 SULFATE ION × 3 NA SODIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 4；291 K；0.95M citric acid, 1.9M ammonium sulfate, pH4, EVAPORATION, temperature 291K
Resolution 2.73 Å R-free 0.278
3THM Crystal structure of Fas receptor extracellular domain in complex with Fab EP6b_B01 Deposited 2011-08-19 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 17–172（156 aa） Fragment：extracellular domain
Not recorded EDO 1,2-ETHANEDIOL × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；277 K；20% PEG4000, 10% isopropanol, 100 mM HEPES/NaOH, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 2.10 Å R-free 0.221
3TJE Crystal structure of Fas receptor extracellular domain in complex with Fab E09 Deposited 2011-08-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 17–172（156 aa）
Not recorded EDO 1,2-ETHANEDIOL × 5 CL CHLORIDE ION × 1 CD CADMIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；277 K；20% PEG4000, 5 mM CdCl2, 100 mM Tris/HOAc, pH 8.5, vapor diffusion, sitting drop, temperature 277K
Resolution 1.93 Å R-free 0.232
9NCQ Cryo-EM structure of Fas-FADD complex Deposited 2025-02-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
Chain A 225–320（96 aa）
Chain B 225–320（96 aa）
Chain C 225–320（96 aa）
Chain D 225–320（96 aa）
Chain E 225–320（96 aa）
Chain F 225–320（96 aa）
Chain G 225–320（96 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.51 Å

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.