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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：P78352 New Search
19PDB entries
40Biological assembly
43chain/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
1KEF PDZ1 of SAP90 Deposited 2001-11-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 105–197（93 aa） Fragment：PDZ1 domain
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.8；308 K；Ionic strength (raw mmCIF value) 150 mM NaCl；Pressure 1
NMR sample composition 1.0 mM protein, 10 mM phosphate buffer, 150 mM NaCl, pH 6.8 | 10 mM phosphate buffer, 150 mM NaCl
Resolution not provided
2MES Backbone 1H, 13C, 15N resonance assignments of calcium-bound calmodulin in complex with PSD95 N-terminal peptide Deposited 2013-09-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–71（71 aa） Fragment：UNP residues 1-71
Not recorded CA CALCIUM ION × 4 SOLUTION NMR
NMR measurement conditions pH 7；310 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient
NMR sample composition 400 uM [U-99% 13C; U-99% 15N] Calmodulin, PSD95NT, DTT, Tris, CaCl2, 600 uM PSD95_N-terminal_peptide, 20 mM Tris-d11, 50 mM NaCl, 5 mM CaCl2, 5 mM DTT-d, 93 % H2O, 7 % D2O, 93% H2O/7% D2O | 93% H2O/7% D2O
Resolution not provided
3I4W Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-07-03 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa） Fragment：Third PDZ domain
Non-standard monomer：Yes (specific site not provided by mmCIF) ACT ACETATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions capillary contradiffusion；pH 4.6；298 K；0.2M ammonium sulphate, 0.1M ammonium acetate trihydrate, 25%(w/v) PEG 4000, pH 4.6, capillary contradiffusion, temperature 298K
Resolution 1.35 Å R-free 0.216
3I4W Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-07-03 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa） Fragment：Third PDZ domain
Non-standard monomer：Yes (specific site not provided by mmCIF) ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions capillary contradiffusion；pH 4.6；298 K；0.2M ammonium sulphate, 0.1M ammonium acetate trihydrate, 25%(w/v) PEG 4000, pH 4.6, capillary contradiffusion, temperature 298K
Resolution 1.35 Å R-free 0.216
3I4W Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-07-03 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 302–403（102 aa） Fragment：Third PDZ domain
Non-standard monomer：Yes (specific site not provided by mmCIF) ACT ACETATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions capillary contradiffusion；pH 4.6；298 K；0.2M ammonium sulphate, 0.1M ammonium acetate trihydrate, 25%(w/v) PEG 4000, pH 4.6, capillary contradiffusion, temperature 298K
Resolution 1.35 Å R-free 0.216
3I4W Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-07-03 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 302–403（102 aa） Fragment：Third PDZ domain
Non-standard monomer：Yes (specific site not provided by mmCIF) ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions capillary contradiffusion；pH 4.6；298 K；0.2M ammonium sulphate, 0.1M ammonium acetate trihydrate, 25%(w/v) PEG 4000, pH 4.6, capillary contradiffusion, temperature 298K
Resolution 1.35 Å R-free 0.216
3K82 Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-10-13 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 305–402（98 aa） Fragment：Third PDZ domain
Non-standard monomer：Yes (specific site not provided by mmCIF) PO4 PHOSPHATE ION × 1 GOL GLYCEROL × 1 EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；288 K；0.1M HEPES sodium pH 7.5, 0.8M sodium phosphate monobasic monohydrate, 0.8M potassium phosphate monobasic, VAPOR DIFFUSION, HANGING DROP, temperature 288K
Resolution 1.40 Å R-free 0.210
3ZRT Crystal structure of human PSD-95 PDZ1-2 Deposited 2011-06-19 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 61–249（189 aa） Fragment：PDZ1-2, REISDUES 61-249
Chain C 61–249（189 aa） Fragment：PDZ1-2, REISDUES 61-249
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.5；0.1 M SODIUM ACETATE TRIHYDRATE PH 6.0, 2.0 M SODIUM FORMATE AND 5 % PEG 4000 (DROP SIZE: 1 UL SAMPLE AND 1UL RESERVOIR SOLUTION)
Resolution 3.40 Å R-free 0.264
3ZRT Crystal structure of human PSD-95 PDZ1-2 Deposited 2011-06-19 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 61–249（189 aa） Fragment：PDZ1-2, REISDUES 61-249
Chain D 61–249（189 aa） Fragment：PDZ1-2, REISDUES 61-249
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.5；0.1 M SODIUM ACETATE TRIHYDRATE PH 6.0, 2.0 M SODIUM FORMATE AND 5 % PEG 4000 (DROP SIZE: 1 UL SAMPLE AND 1UL RESERVOIR SOLUTION)
Resolution 3.40 Å R-free 0.264
5J7J NMR Derived Structure of Ca2+ Calmodulin bound to Phosphorylated PSD-95 Deposited 2016-04-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–19（19 aa） Fragment：UNP residues 1-19
Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 SOLUTION NMR
NMR measurement conditions pH 7；318 K；Ionic strength (raw mmCIF value) 50；Pressure 1
NMR sample composition 500 uM [U-100% 13C; U-100% 15N] Calmodulin, 750 uM PSD-95 phosphorylated, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
5JXB PSD-95 extended PDZ3 in complex with SynGAP PBM Deposited 2016-05-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 309–413（105 aa）
Chain C 309–413（105 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289 K；0.1M HEPES sodium pH 7.5, 10% v/v 2-Propanol, 20% w/v Polyethylene glycol 4000
Resolution 2.90 Å R-free 0.287
6QJD Crystal Structure of the truncated form of the third PDZ domain of PSD-95: residues 302-392 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–393（92 aa） Fragment：PDZ domain
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6；298 K；0.2 M ammonium sulphate, 30% PEG 4000
Resolution 1.55 Å R-free 0.259
6QJD Crystal Structure of the truncated form of the third PDZ domain of PSD-95: residues 302-392 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–393（92 aa） Fragment：PDZ domain
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6；298 K；0.2 M ammonium sulphate, 30% PEG 4000
Resolution 1.55 Å R-free 0.259
6QJD Crystal Structure of the truncated form of the third PDZ domain of PSD-95: residues 302-392 Deposited 2019-01-24 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 302–393（92 aa） Fragment：PDZ domain
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6；298 K；0.2 M ammonium sulphate, 30% PEG 4000
Resolution 1.55 Å R-free 0.259
6QJD Crystal Structure of the truncated form of the third PDZ domain of PSD-95: residues 302-392 Deposited 2019-01-24 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 302–393（92 aa） Fragment：PDZ domain
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6；298 K；0.2 M ammonium sulphate, 30% PEG 4000
Resolution 1.55 Å R-free 0.259
6QJF Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 1 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；298 K；0.16 M ammonium dihydrogenphosphate, 50 mM Tris, 20 % glycerol
Resolution 1.50 Å R-free 0.199
6QJF Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 1 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；298 K；0.16 M ammonium dihydrogenphosphate, 50 mM Tris, 20 % glycerol
Resolution 1.50 Å R-free 0.199
6QJF Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 1 Deposited 2019-01-24 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；298 K；0.16 M ammonium dihydrogenphosphate, 50 mM Tris, 20 % glycerol
Resolution 1.50 Å R-free 0.199
6QJF Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 1 Deposited 2019-01-24 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；298 K；0.16 M ammonium dihydrogenphosphate, 50 mM Tris, 20 % glycerol
Resolution 1.50 Å R-free 0.199
6QJG Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 2 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES, 30 % PEG 8000
Resolution 2.00 Å R-free 0.246
6QJG Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 2 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES, 30 % PEG 8000
Resolution 2.00 Å R-free 0.246
6QJG Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 2 Deposited 2019-01-24 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES, 30 % PEG 8000
Resolution 2.00 Å R-free 0.246
6QJG Crystal Structure of the third PDZ domain of PSD-95 protein D332P mutant: space group C121, structure 2 Deposited 2019-01-24 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 302–403（102 aa） Fragment：PDZ domain
Mutation：D332P No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；0.1 M MES, 30 % PEG 8000
Resolution 2.00 Å R-free 0.246
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 305–403（99 aa）
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 305–403（99 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 305–403（99 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 305–403（99 aa）
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain E 305–403（99 aa）
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJI Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3112 Deposited 2019-01-24 Assembly 6 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain F 305–403（99 aa）
Not recorded SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；0.2 M AMMONIUM SULPHATE, 30% PEG 4000
Resolution 1.50 Å R-free 0.261
6QJJ Crystal Structure of the third PDZ domain of PSD-95 protein: space group P3221 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 305–403（99 aa） Fragment：PDZ domain
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.2 M ammonium sulphate, 30% PEG 4000
Resolution 1.70 Å R-free 0.223
6QJK Crystal Structure of the third PDZ domain of PSD-95 protein D332G mutant: space group P43 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 348–446（99 aa） Fragment：PDZ domain
Mutation：D332G SO4 SULFATE ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.17 M ammonium sulphate , 25.5% PEG 8000 , 15% Glycerol
Resolution 1.05 Å R-free 0.145
6QJL Crystal Structure of the third PDZ domain of PSD-95 protein D332G mutant: space group P21 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa） Fragment：PDZ domain
Mutation：D332G SO4 SULFATE ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.17 M ammonium sulphate , 25.5% PEG 8000 , 15% Glycerol
Resolution 1.04 Å R-free 0.174
6QJL Crystal Structure of the third PDZ domain of PSD-95 protein D332G mutant: space group P21 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa） Fragment：PDZ domain
Mutation：D332G SO4 SULFATE ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；0.17 M ammonium sulphate , 25.5% PEG 8000 , 15% Glycerol
Resolution 1.04 Å R-free 0.174
6QJN Crystal Structure of the third PDZ domain of PSD-95 protein D332G mutant: space group I4122 Deposited 2019-01-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa） Fragment：PDZ domain
Mutation：D332G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.6；298 K；0.1 M sodium citrate, 20% 2-Propanol, 20% PEG 4000, 5% Glycerol
Resolution 1.80 Å R-free 0.227
6QJN Crystal Structure of the third PDZ domain of PSD-95 protein D332G mutant: space group I4122 Deposited 2019-01-24 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa） Fragment：PDZ domain
Mutation：D332G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.6；298 K；0.1 M sodium citrate, 20% 2-Propanol, 20% PEG 4000, 5% Glycerol
Resolution 1.80 Å R-free 0.227
6SPV Crystal structure of PDZ1-2 from PSD-95 Deposited 2019-09-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 55–249（195 aa）
Not recorded GSH Glutathione × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；0.2 M calcium acetate; 0.1 M sodium cacodylate; 40% v/v PEG 400
Resolution 2.04 Å R-free 0.260
6SPZ Crystal structure of PDZ1-2 from PSD-95 with peptide ligand sequence RRESEI bound to both domains Deposited 2019-09-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 55–249（195 aa）
Not recorded GSH Glutathione × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.2；277 K；0.2 M NaCl, 0.1 M Na/K phosphate, 50% v/v PEG 200. Matrix microseeding with Apo crystal form (PDB ID: 6spv).
Resolution 2.08 Å R-free 0.240
9TNF Crystal Structure of the third PDZ domain of PSD-95 protein Y397E mutant Deposited 2025-12-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa）
Mutation：Y397E No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；298 K；0.2 M ammonium sulphate, 30% w/v PEG 4000, 0.1 M sodium acetate
Resolution 1.45 Å R-free 0.201
9TNF Crystal Structure of the third PDZ domain of PSD-95 protein Y397E mutant Deposited 2025-12-15 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 302–403（102 aa）
Mutation：Y397E No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；298 K；0.2 M ammonium sulphate, 30% w/v PEG 4000, 0.1 M sodium acetate
Resolution 1.45 Å R-free 0.201
9TNG Crystal Structure of the third PDZ domain of PSD-95 protein E401R mutant Deposited 2025-12-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 302–403（102 aa）
Mutation：E401R ACT ACETATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；298 K；0.2 M ammonium sulphate, 25% w/v PEG 4000, 0.1 M sodium acetate
Resolution 0.95 Å R-free 0.168

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.