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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：P62155 New Search
23PDB entries
28Biological assembly
30chain/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
1CFC CALCIUM-FREE CALMODULIN Deposited 1995-08-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 5 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 6 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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
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 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) 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
2RRT Solution structure of Magnesium-bound form of calmodulin C-domain E104D/E140D mutant Deposited 2011-04-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
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

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.