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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count | Chain A; UniProt 79–149 | Fragment:C-terminal domain, UNP residues 79-149 Mutation:E28D, E64D | No other associated polymer | 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 |
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 2RRT | 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 mutation/modification 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 mutation/modification 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 construct Different mutation/modification Different oligomeric state Different ligand/ion 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 mutation/modification 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 mutation/modification 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 mutation/modification 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 mutation/modification Different oligomeric state Different ligand/ion 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 mutation/modification 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 mutation/modification Different oligomeric state Different ligand/ion 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 mutation/modification Different oligomeric state Different ligand/ion 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 mutation/modification 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 |
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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 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 mutation/modification Different oligomeric state 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 construct Different mutation/modification Different oligomeric state Different ligand/ion 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 mutation/modification Different oligomeric state 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 mutation/modification Different oligomeric state 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 |
| 2MES Backbone 1H, 13C, 15N resonance assignments of calcium-bound calmodulin in complex with PSD95 N-terminal peptide Deposited 2013-09-26 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion 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;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 |
| 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 construct Different mutation/modification Different oligomeric state Different ligand/ion 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 construct Different mutation/modification Different oligomeric state Different ligand/ion 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 2–72; UniProt 79–149 |