+Open data
-Basic information
Entry | Database: PDB / ID: 1kk7 | ||||||
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Title | SCALLOP MYOSIN IN THE NEAR RIGOR CONFORMATION | ||||||
Components |
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Keywords | CONTRACTILE PROTEIN / Near rigor / Myosin / Mechanics of MOTOR / nucleotide free | ||||||
Function / homology | Function and homology information muscle myosin complex / myosin filament / myosin II complex / myosin complex / sarcomere organization / microfilament motor activity / myofibril / muscle contraction / actin filament binding / calmodulin binding ...muscle myosin complex / myosin filament / myosin II complex / myosin complex / sarcomere organization / microfilament motor activity / myofibril / muscle contraction / actin filament binding / calmodulin binding / calcium ion binding / ATP binding Similarity search - Function | ||||||
Biological species | Argopecten irradians (bay scallop) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.2 Å | ||||||
Authors | Himmel, D.M. / Gourinath, S. / Reshetnikova, L. / Shen, Y. / Szent-Gyorgyi, A.G. / Cohen, C. | ||||||
Citation | Journal: Proc.Natl.Acad.Sci.USA / Year: 2002 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: Journal: Proc.Natl.Acad.Sci.USA / Year: 2000 Title: THREE CONFORMATIONAL STATES OF SCALLOP S1 Authors: HOUDUSSE, A. / SZENT-GYORGYI, A.G. / COHEN, C. #2: Journal: Cell(Cambridge,Mass.) / Year: 1999 Title: ATOMIC STRUCTURE OFSCALLOP 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. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1kk7.cif.gz | 224 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1kk7.ent.gz | 171.3 KB | Display | PDB format |
PDBx/mmJSON format | 1kk7.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 1kk7_validation.pdf.gz | 471.3 KB | Display | wwPDB validaton report |
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Full document | 1kk7_full_validation.pdf.gz | 547.2 KB | Display | |
Data in XML | 1kk7_validation.xml.gz | 48.7 KB | Display | |
Data in CIF | 1kk7_validation.cif.gz | 65.2 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/kk/1kk7 ftp://data.pdbj.org/pub/pdb/validation_reports/kk/1kk7 | HTTPS FTP |
-Related structure data
Related structure data | 1kk8C 1kqmC 1kwoC 1l2oC 1dfkS S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
-Protein , 3 types, 3 molecules AYZ
#1: Protein | Mass: 95543.750 Da / Num. of mol.: 1 / Fragment: HEAVY CHAIN / Source method: isolated from a natural source / Details: PAPAIN DIGESTION OF MYOSIN / Source: (natural) Argopecten irradians (bay scallop) / Strain: BAY SCALLOP / References: UniProt: P24733 |
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#2: Protein | Mass: 17560.855 Da / Num. of mol.: 1 / Fragment: REGULATORY LIGHT CHAIN / Source method: isolated from a natural source / Details: PAPAIN DIGESTION OF MYOSIN / Source: (natural) Argopecten irradians (bay scallop) / Strain: BAY SCALLOP / References: UniProt: P13543 |
#3: Protein | Mass: 17635.635 Da / Num. of mol.: 1 / Fragment: ESSENTIAL LIGHT CHAIN / Source method: isolated from a natural source / Details: PAPAIN DIGESTION OF MYOSIN / Source: (natural) Argopecten irradians (bay scallop) / Strain: BAY SCALLOP / References: UniProt: P07291 |
-Non-polymers , 4 types, 14 molecules
#4: Chemical | ChemComp-SO4 / | ||||
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#5: Chemical | #6: Chemical | ChemComp-CA / | #7: Water | ChemComp-HOH / | |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 3.33 Å3/Da / Density % sol: 62 % | |||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, sitting drop / pH: 6.3 Details: PEG 5000, ammonium sulphate, MgCl2, gycerol, cacodylate, pH 6.3, VAPOR DIFFUSION, SITTING DROP, temperature 277K | |||||||||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 4.0 ℃ / Method: vapor diffusion, hanging drop | |||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: SYNCHROTRON / Site: CHESS / Beamline: A1 / Wavelength: 0.93 Å |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Apr 27, 2000 |
Radiation | Monochromator: Rh coated with Si / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.93 Å / Relative weight: 1 |
Reflection | Resolution: 3.2→50 Å / Num. all: 22975 / Num. obs: 20489 / % possible obs: 88.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.2 % / Biso Wilson estimate: 61.3 Å2 / Rsym value: 0.109 / Net I/σ(I): 11.2 |
Reflection shell | Resolution: 3.2→3.31 Å / Redundancy: 1.7 % / Mean I/σ(I) obs: 2.4 / Num. unique all: 1482 / Rsym value: 0.335 / % possible all: 65.8 |
Reflection | *PLUS Lowest resolution: 50 Å / Num. obs: 20298 / Rmerge(I) obs: 0.109 |
Reflection shell | *PLUS % possible obs: 65.8 % / Rmerge(I) obs: 0.335 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: 1DFK Resolution: 3.2→48.72 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 2184630.18 / Data cutoff high rms absF: 2184630.18 / Data cutoff low absF: 0 / Isotropic thermal model: GROUP / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 161.96 Å2 / ksol: 0.312598 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 84.1 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 3.2→48.72 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 3.2→3.4 Å / Rfactor Rfree error: 0.027 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Highest resolution: 3.2 Å / Lowest resolution: 50 Å / % reflection Rfree: 10 % / Rfactor all: 0.263 / Rfactor Rfree: 0.313 / Rfactor Rwork: 0.258 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor Rfree: 0.339 / Rfactor Rwork: 0.271 |