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- PDB-1kwo: SCALLOP MYOSIN S1-ATPgammaS-p-PDM IN THE ACTIN-DETACHED CONFORMATION -
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Open data
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Basic information
Entry | Database: PDB / ID: 1kwo | ||||||
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Title | SCALLOP MYOSIN S1-ATPgammaS-p-PDM IN THE ACTIN-DETACHED CONFORMATION | ||||||
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![]() | CONTRACTILE PROTEIN / Actin-detached / Myosin / Mechanics of Motor / Cross linker | ||||||
Function / homology | ![]() cytoskeletal motor regulator activity / mitotic actomyosin contractile ring / mitotic actomyosin contractile ring contraction / muscle myosin complex / myosin filament / actomyosin structure organization / locomotion / myosin II complex / microfilament motor activity / myofibril ...cytoskeletal motor regulator activity / mitotic actomyosin contractile ring / mitotic actomyosin contractile ring contraction / muscle myosin complex / myosin filament / actomyosin structure organization / locomotion / myosin II complex / microfilament motor activity / myofibril / sarcomere organization / myosin heavy chain binding / mitotic cytokinesis / post-embryonic development / muscle contraction / actin filament binding / calmodulin binding / calcium ion binding / ATP binding / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Himmel, D.M. / Gourinath, S. / Reshetnikova, L. / Shen, Y. / Szent-Gyorgyi, G. / Cohen, C. | ||||||
![]() | ![]() Title: Crystallographic findings on the internally uncoupled and near-rigor states of myosin: Further insights into the mechanics of the motor Authors: Himmel, D.M. / Gourinath, S. / Reshetnikova, L. / Shen, Y. / Szent-Gyorgyi, A.G. / Cohen, C. #1: ![]() Title: Atomic Structure of Scallop Myosin Subfragment S1 Complexed with MgADP: A Novel Conformation of the Myosin Head Authors: Houdusse, A. / Kalabokis, V.N. / Himmel, D. / Szent-Gyorgyi, A.G. / Cohen, C. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 226.6 KB | Display | ![]() |
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PDB format | ![]() | 171.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 545.5 KB | Display | ![]() |
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Full document | ![]() | 627.9 KB | Display | |
Data in XML | ![]() | 34 KB | Display | |
Data in CIF | ![]() | 49.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1kk7C ![]() 1kk8C ![]() 1kqmC ![]() 1l2oC ![]() 1b7tS S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Unit cell |
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Details | Myosin-S1 consists of three peptide chains (heavy chain, regulatory light chain, essential light chain), which can also be described as a heterotrimer |
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Components
-Protein , 3 types, 3 molecules ABC
#1: Protein | Mass: 95317.430 Da / Num. of mol.: 1 / Fragment: SUBFRAGMENT 1(S1) / Source method: isolated from a natural source / Details: PAPAIN DIGESTED / Source: (natural) ![]() |
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#2: Protein | Mass: 17560.855 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#3: Protein | Mass: 17635.635 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 5 types, 11 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/AGS.gif)
![](data/chem/img/PDM.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/AGS.gif)
![](data/chem/img/PDM.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/HOH.gif)
#4: Chemical | #5: Chemical | ChemComp-AGS / | #6: Chemical | ChemComp-PDM / | #7: Chemical | ChemComp-CA / | #8: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.32 Å3/Da / Density % sol: 63 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, sitting drop / pH: 8.5 Details: PEG 20000, magnesium chloride, ethylene glycol, Tris HCl, ATPgammaS, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Oct 21, 1999 |
Radiation | Monochromator: Double Crystal Monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.087 Å / Relative weight: 1 |
Reflection | Resolution: 3.8→40 Å / Num. all: 14626 / Num. obs: 14451 / % possible obs: 84.6 % / Observed criterion σ(I): -3 / Redundancy: 3 % / Biso Wilson estimate: 35.3 Å2 / Rsym value: 0.084 / Net I/σ(I): 10.6 |
Reflection shell | Resolution: 3.8→3.9 Å / Mean I/σ(I) obs: 4.2 / Rsym value: 0.274 / % possible all: 45.1 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1B7T Resolution: 3.8→36.87 Å / Rfactor Rfree error: 0.013 / Data cutoff high absF: 294029.2 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 36.1982 Å2 / ksol: 0.203759 e/Å3 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 53.4 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 3.8→36.87 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 3.8→3.91 Å / Rfactor Rfree error: 0.159 / Total num. of bins used: 12
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Xplor file |
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