2mes

Backbone 1H, 13C, 15N resonance assignments of calcium-bound calmodulin in complex with PSD95 N-terminal peptide

Method: SOLUTION NMR D_max: 49.4 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Calmodulin

Xenopus laevis

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count	Chain A； UniProt 2–149	Not recorded	Disks large homolog 4 × 1 （P78352） 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

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 2MES	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1CFC CALCIUM-FREE CALMODULIN Deposited 1995-08-02	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–148（148 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1CFD CALCIUM-FREE CALMODULIN Deposited 1995-10-18	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–148（148 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1CFF NMR SOLUTION STRUCTURE OF A COMPLEX OF CALMODULIN WITH A BINDING PEPTIDE OF THE CA2+-PUMP Deposited 1999-03-18	Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 2–149（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 6.5；303 K；Ionic strength (raw mmCIF value) 0.115；Pressure 1 NMR sample composition 90% H2O/10% D2O, 100% D2O	Resolution not provided
1DMO CALMODULIN, NMR, 30 STRUCTURES Deposited 1996-04-24	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–148（148 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1F70 REFINED SOLUTION STRUCTURE OF CALMODULIN N-TERMINAL DOMAIN Deposited 2000-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2–76（75 aa） Fragment：N-TERMINAL DOMAIN	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 100 mM KCL；Pressure ambient NMR sample composition 1 mM Calmodulin U-15N,13C; 5 mM Hepe buffer, 100 mM KCL \| 90% H2O/10% D2O NMR sample composition 1 mM Calmodulin U-15N,13C; 5 mM Hepe buffer, 100 mM KCL; 21 mg/ml filamentous phage Pf1 \| 90% H2O/10% D2O	Resolution not provided
1F71 REFINED SOLUTION STRUCTURE OF CALMODULIN C-TERMINAL DOMAIN Deposited 2000-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 83–149（67 aa） Fragment：C-TERMINAL DOMAIN	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 100mM KCl；Pressure ambient NMR sample composition 1 mM Calmodulin U-15N,13C; 5 mM Hepes buffer, 100 mM KCl \| 90% H2O/10% D2O NMR sample composition 1 mM Calmodulin U-15N,13C; 5 mM Hepes buffer, 100 mM KCl; 21 mg/ml filamentous phage pf1 \| 90% H2O/10% D2O	Resolution not provided
1IQ5 Calmodulin/nematode CA2+/Calmodulin dependent kinase kinase fragment Deposited 2001-06-14	Different construct Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–149（149 aa）	Not recorded	CA CALCIUM ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；ammonium sulfate, citratet, sodium tartrae, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.80 Å R-free 0.248
1MUX SOLUTION NMR STRUCTURE OF CALMODULIN/W-7 COMPLEX: THE BASIS OF DIVERSITY IN MOLECULAR RECOGNITION, 30 STRUCTURES Deposited 1997-09-06	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–148（148 aa）	Not recorded	CA CALCIUM ION × 4 WW7 N-(6-AMINOHEXYL)-5-CHLORO-1-NAPHTHALENESULFONAMIDE × 2	SOLUTION NMR NMR measurement conditions pH 6.8；308 K；Ionic strength (raw mmCIF value) KCL, 100mM；Pressure 1	Resolution not provided
1NWD Solution Structure of Ca2+/Calmodulin bound to the C-terminal Domain of Petunia Glutamate Decarboxylase Deposited 2003-02-06	Different construct Different oligomeric state Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–148（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 6.3；308 K；Ionic strength (raw mmCIF value) 100 mM KCl, 10 mM CaCl2 NMR sample composition 1 mM Calmodulin; 2.2 mM GAD \| 91% H2O, 9% D2O	Resolution not provided
1SY9 Structure of calmodulin complexed with a fragment of the olfactory CNG channel Deposited 2004-04-01	Different construct Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–148（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 6.7；308 K NMR measurement conditions pH 6.7；308 K NMR sample composition 1.2 mM complex U-15N,13C, 6 mM CaCl2, 140 mM KCl, D2O \| D2O NMR sample composition 1.2 mM complex U-15N,13C, 6 mM CaCl2, 140 mM KCl, 90% H2O, 10% D2O \| 90% H2O/10% D2O	Resolution not provided
1X02 Solution structure of stereo array isotope labeled (SAIL) calmodulin Deposited 2005-03-11	Different construct Different oligomeric state Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–148（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 6.5；310 K；Pressure AMBIENT NMR sample composition 0.7mM SAIL calmodulin, 5mM MES-d13, 10mM bis-Tris-d19, 5mM CaCl2, 0.1mM NaN3 \| 90% H2O/10% D2O	Resolution not provided
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain H 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain I 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain J 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain K 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain L 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
1Y0V Crystal structure of anthrax edema factor (EF) in complex with calmodulin and pyrophosphate Deposited 2004-11-16	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 6 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain M 5–148（144 aa）	Not recorded	MG MAGNESIUM ION × 1 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；277 K；PEG400, MgCl2, Tris-HCl, pH 8.5, VAPOR DIFFUSION, temperature 277K	Resolution 3.60 Å R-free 0.307
2COL Crystal structure analysis of CyaA/C-Cam with Pyrophosphate Deposited 2005-05-18	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 79–145（67 aa）	Not recorded	MG MAGNESIUM ION × 2 POP PYROPHOSPHATE 2- × 1 CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；278 K；PEG4000, Na Citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 278K	Resolution 2.20 Å R-free 0.293
2I08 Solvation effect in conformational changes of EF-hand proteins: X-ray structure of Ca2+-saturated double mutant Q41L-K75I of N-domain of calmodulin Deposited 2006-08-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–78（78 aa） Fragment：N-DOMAIN OF CALMODULIN	Mutation：F19Y, Q41L, K75I, A1M, D78Y	CA CALCIUM ION × 2 GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；294 K；36% (v/v) PEG 400, 100 mM HEPES, 200 mM CaCl2, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.00 Å R-free 0.243
2K3S HADDOCK-derived structure of the CH-domain of the smoothelin-like 1 complexed with the C-domain of apocalmodulin Deposited 2008-05-15	Different construct Different ligand/ion Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 83–149（67 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7；293 K；Ionic strength (raw mmCIF value) 0；Pressure ambient NMR sample composition 0.5 mM [U-100% 15N] entity_1, 0.6 mM calmodulin (full length), 20 mM Bis-Tris, 0.5 mM DSS, 10 mM [U-2H] DTT, 0.03 % sodium azide, 1 mM EDTA, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 0.6 mM entity_1, 0.5 mM [U-100% 15N] calmodulin (full length), 20 mM Bis-Tris, 0.5 mM DSS, 10 mM [U-2H] DTT, 0.03 % sodium azide, 1 mM EDTA, 90% H2O/10% D2O \| 90% H2O/10% D2O	Resolution not provided
2KDU Structural basis of the Munc13-1/Ca2+-Calmodulin interaction: A novel 1-26 calmodulin binding motif with a bipartite binding mode Deposited 2009-01-19	Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 2–149（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 6.8；308 K NMR sample composition 10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13, 150 mM potassium chloride, 20 mM BIS-TRIS, 100% D2O \| 100% D2O	Resolution not provided
2LLO Solution NMR-derived structure of calmodulin N-lobe bound with ER alpha peptide Deposited 2011-11-15	Different construct Different ligand/ion Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 2–81（80 aa） Fragment：EF-hand domains 1 and 2, residues 2-81	Not recorded	CA CALCIUM ION × 2	SOLUTION NMR NMR measurement conditions pH 7；310 K；Ionic strength (raw mmCIF value) 0.02；Pressure ambient NMR sample composition 1 mM [U-100% 13C; U-100% 15N] TRIS, 90% H2O/10% D2O \| 90% H2O/10% D2O	Resolution not provided
2LLQ Solution nmr-derived structure of calmodulin c-lobe bound with er alpha peptide Deposited 2011-11-15	Different construct Different ligand/ion Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 83–149（67 aa） Fragment：EF-hand domains 3 and 4, residues 83-149	Not recorded	CA CALCIUM ION × 2	SOLUTION NMR NMR measurement conditions pH 7；310 K；Ionic strength (raw mmCIF value) 0.02；Pressure ambient NMR sample composition 1 mM [U-100% 13C; U-100% 15N] protein, 93% H2O/7% D2O \| 93% H2O/7% D2O	Resolution not provided
2RRT Solution structure of Magnesium-bound form of calmodulin C-domain E104D/E140D mutant Deposited 2011-04-27	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 79–149（71 aa） Fragment：C-terminal domain, UNP residues 79-149	Mutation：E28D, E64D	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；323 K；Ionic strength (raw mmCIF value) 0.5；Pressure ambient NMR sample composition 10 mM [U-2H] MES-1, 100 mM potassium chloride-2, 100 mM magnesium chloride-3, 90% H2O/10% D2O \| 90% H2O/10% D2O	Resolution not provided
4R8G Crystal Structure of Myosin-1c tail in complex with Calmodulin Deposited 2014-09-02	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 2–149（148 aa） Chain B 2–149（148 aa） Chain H 2–149（148 aa）	Not recorded	SO4 SULFATE ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；289.3 K；2.0M ammonium sulfate, 5% 1,4-dioxane, MES pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 289.3K	Resolution 3.50 Å R-free 0.304
5J7J NMR Derived Structure of Ca2+ Calmodulin bound to Phosphorylated PSD-95 Deposited 2016-04-06	Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 2–149（148 aa）	Not recorded	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
5T0X Solution NMR-derived structure of calmodulin bound with ER alpha peptides Deposited 2016-08-16	Different oligomeric state Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 2–149（148 aa）	Not recorded	CA CALCIUM ION × 4	SOLUTION NMR NMR measurement conditions pH 7；310 K；Ionic strength (raw mmCIF value) 50；Pressure 1 NMR sample composition 1 mM [U-99% 15N] 15N-labeled CaM/ERalpha \| 90% H2O/10% D2O NMR sample composition 1 mM [U-99% 13C; U-99% 15N] 13C/15N-CaM/ERalpha \| 90% H2O/10% D2O NMR sample composition 1 mM [U-99% 13C; U-99% 15N] 13C/15N-CaM/ERalpha \| 100% D2O	Resolution not provided

22 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CALM_XENLA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–148； UniProt 2–149

Disks large homolog 4

Homo sapiens

UniProt P78352

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric（2） Consistent with protein copy count	Chain B； UniProt 1–71	Fragment：UNP residues 1-71	Calmodulin × 1 （P62155） 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

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 2MES	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1KEF PDZ1 of SAP90 Deposited 2001-11-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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
3I4W Crystal Structure of the third PDZ domain of PSD-95 Deposited 2009-07-03	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	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	Different construct Different mutation/modification Different experimental conditions	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 6 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	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

18 other PDB entries and 39 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	DLG4_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–71； UniProt 1–71

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	2mes
Deposition date deposition_date	2013-09-26
Structure title title	Backbone 1H, 13C, 15N resonance assignments of calcium-bound calmodulin in complex with PSD95 N-terminal peptide
Keywords keywords	Protein/Peptide, METAL BINDING PROTEIN; METAL BINDING PROTEIN
Experimental Method method	SOLUTION NMR

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	15.81 Å
Radius of gyration Rg (electron density) rg_electron	15.29 Å
Forward intensity I(0) i0	550687000.00
Molecular weight molecular_weight	186910.0 kDa
Excluded volume excluded_volume	228710 Å³
Envelope volume envelope_volume	32278 Å³
Hydration-shell volume shell_volume	16633 Å³
Envelope diameter envelope_diameter	51.1 Å
Shell Rg shell_rg	22.36 Å
Envelope Rg envelope_rg	16.22 Å
Shape Rg shape_rg	15.31 Å
Total Rg total_rg	15.37 Å
Total atoms total_atoms	25170
Residues n_residues	1630
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	49.4 Å
Rg (real space) rg_real	15.70 Å
Rg uncertainty (real space) rg_real_error	0.27 Å
I(0) (real space) i0_real	5.5070e+08
I(0) uncertainty (real space) i0_real_error	6.2390e+06
Rg (reciprocal space) rg_reciprocal	15.72 Å
I(0) (reciprocal space) i0_reciprocal	550700000.0000
Solution quality estimate total_estimate	0.8937
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	20.6 Å
Skewness Skewness skewness	0.089
Kurtosis Kurtosis kurtosis	-0.417
Angular range angular_range	— – 0.5000 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	561400.0000
Real-space data points n_real_points	80
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.878; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.990; Smooth: 0.991

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	Calmodulin
Molecular weight formula_weight	16721.3 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	25170

ADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTAK

来源 Source

来源生物 organism	Xenopus laevis
通用名 common_name	clawed frog,common platanna,platanna
NCBI Class编号 ncbi_taxonomy_id	8355
宿主生物 host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Disks large homolog 4
Molecular weight formula_weight	7998.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MDCLCIVTTKKYRYQDEDTPPLEHSPAHLPNQANSPPVIVNTDTLEAPGYELQVNGTEGEMEYEEITLERG

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	4

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7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2mesa_
Class class	a — All alpha proteins
Fold Fold fold	a.39 — EF Hand-like
Superfamily Superfamily superfamily	a.39.1 — EF-hand
Family Family family	a.39.1.5 — Calmodulin-like

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8. Citations (1)

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	1

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

fit	/app/data/saxs_computation/me/2mes/2mes.fit
pddf	/app/data/pr_computation/me/2mes/2mes.pr.out
profile	/app/data/saxs_computation/me/2mes/2mes.dat

Backbone 1H, 13C, 15N resonance assignments of calcium-bound calmodulin in complex with PSD95 N-terminal peptide

1. Protein Identity and Related Structures Protein Identity & Related Structures

Calmodulin

State in the Current Structure

Other States of the Same Protein in the Database

Disks large homolog 4

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

6. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 non-polymer

7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)