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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：P11799 New Search
7PDB entries
12Biological assembly
13chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
1CDL TARGET ENZYME RECOGNITION BY CALMODULIN: 2.4 ANGSTROMS STRUCTURE OF A CALMODULIN-PEPTIDE COMPLEX Deposited 1993-10-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 1730–1749（20 aa）
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1CDL TARGET ENZYME RECOGNITION BY CALMODULIN: 2.4 ANGSTROMS STRUCTURE OF A CALMODULIN-PEPTIDE COMPLEX Deposited 1993-10-08 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 1730–1749（20 aa）
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1CDL TARGET ENZYME RECOGNITION BY CALMODULIN: 2.4 ANGSTROMS STRUCTURE OF A CALMODULIN-PEPTIDE COMPLEX Deposited 1993-10-08 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain G 1730–1749（20 aa）
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1CDL TARGET ENZYME RECOGNITION BY CALMODULIN: 2.4 ANGSTROMS STRUCTURE OF A CALMODULIN-PEPTIDE COMPLEX Deposited 1993-10-08 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 1730–1749（20 aa）
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1QTX THE 1.65 ANGSTROM STRUCTURE OF CALMODULIN RS20 PEPTIDE COMPLEX Deposited 1999-06-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1731–1750（20 aa） Fragment：CALMODULIN BINDING REGION FROM SMOOTH MUSCLE/NONMUSCLE MYOSIN LIGHT CHAIN KINASE
Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；277 K；20% (W/V) PEG 8000, 100 MM SODIUM ACETATE 5 MM CALCIUM CHLORIDE 0.01% (W/V) SODIUM AZIDE PH = 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.65 Å R-free 0.214
2O5G Calmodulin-smooth muscle light chain kinase peptide complex Deposited 2006-12-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1730–1748（19 aa） Fragment：calmodulin binding domain
Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；298 K；30% PEG 400, 0.2 M sodium acetate, 0.1 M Tris pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Resolution 1.08 Å R-free 0.165
3EVU Crystal structure of Calcium bound dimeric GCAMP2 Deposited 2008-10-13 Assembly 1 Insufficient information Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1731–1749（19 aa） Fragment：UNP P11799 residues 1731-1749, UNP P42212 residues 2-144/147-238, UNP P0DP29 residues 3-238
Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.75 Å R-free 0.197
3O77 The structure of Ca2+ Sensor (Case-16) Deposited 2010-07-30 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1730–1749（20 aa）
Mutation：POINT MUTATIONS Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 2 SO4 SULFATE ION × 2 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.4；293 K；Reservoir: 50mM Imidazol, 1.9M Na2malonate pH 6.4; Protein stock solution: 50mM Tris HCl (pH 7.4), 150mM NaCl, 10mM dithiothreitol, protein 4.1mg/ml; Drop ratio reservoir/protein = 1/3, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.35 Å R-free 0.274
3O78 The structure of Ca2+ Sensor (Case-12) Deposited 2010-07-30 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1730–1749（20 aa）
Mutation：POINT MUTATIONS Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；Reservoir: 100mM Tris HCL (pH 5.5), 100mM (NH4)2SO4, 21% PEG 3350; Protein stock: 7.6 mg/ml Protein, 50mM Tris HCl (pH 7.4), 150mM NaCl; Seed stock solution: 20mM CaCl2, 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.316
3O78 The structure of Ca2+ Sensor (Case-12) Deposited 2010-07-30 Assembly 2 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1730–1749（20 aa）
Mutation：POINT MUTATIONS Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；Reservoir: 100mM Tris HCL (pH 5.5), 100mM (NH4)2SO4, 21% PEG 3350; Protein stock: 7.6 mg/ml Protein, 50mM Tris HCl (pH 7.4), 150mM NaCl; Seed stock solution: 20mM CaCl2, 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.316
3O78 The structure of Ca2+ Sensor (Case-12) Deposited 2010-07-30 Assembly 3 Insufficient information Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1730–1749（20 aa）
Chain B 1730–1749（20 aa）
Mutation：POINT MUTATIONS Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：POINT MUTATIONS Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；Reservoir: 100mM Tris HCL (pH 5.5), 100mM (NH4)2SO4, 21% PEG 3350; Protein stock: 7.6 mg/ml Protein, 50mM Tris HCl (pH 7.4), 150mM NaCl; Seed stock solution: 20mM CaCl2, 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.316
9U9D Bipartite Genetically Encoded Biosensor sG-GECO1 Deposited 2025-03-27 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1726–1749（24 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2m sodium malonate dibasic monohydrate, 0.1M Bis-Tris propane pH 8.5, 20% w/v PEG 3350
Resolution 1.80 Å R-free 0.227

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.