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- PDB-7mi1: X-ray structure of yeast dynein motor domain in the presence of a... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7mi1 | |||||||||||||||
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Title | X-ray structure of yeast dynein motor domain in the presence of a pyrazolo-pyrimidinone-based compound (compound 20) | |||||||||||||||
![]() | Chimera protein of Dynein and Endolysin | |||||||||||||||
![]() | MOTOR PROTEIN / AAA ATPase / ATPase inhibitor | |||||||||||||||
Function / homology | ![]() karyogamy / establishment of mitotic spindle localization / astral microtubule / nuclear migration along microtubule / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / spindle pole body / cytoplasmic dynein complex / retrograde axonal transport / nuclear migration ...karyogamy / establishment of mitotic spindle localization / astral microtubule / nuclear migration along microtubule / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / spindle pole body / cytoplasmic dynein complex / retrograde axonal transport / nuclear migration / dynein intermediate chain binding / cytoplasmic microtubule / mitotic sister chromatid segregation / establishment of mitotic spindle orientation / cytoplasmic microtubule organization / viral release from host cell by cytolysis / Neutrophil degranulation / peptidoglycan catabolic process / mitotic spindle organization / cell wall macromolecule catabolic process / lysozyme / lysozyme activity / cell cortex / host cell cytoplasm / defense response to bacterium / ATP hydrolysis activity / ATP binding / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||
Method | ![]() ![]() ![]() | |||||||||||||||
![]() | Santarossa, C.C. / Ekiert, D.C. / Bhabha, G. / Kapoor, T.M. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Targeting allostery in the Dynein motor domain with small molecule inhibitors. Authors: Cristina C Santarossa / Keith J Mickolajczyk / Jonathan B Steinman / Linas Urnavicius / Nan Chen / Yasuhiro Hirata / Yoshiyuki Fukase / Nicolas Coudray / Damian C Ekiert / Gira Bhabha / Tarun M Kapoor / ![]() Abstract: Cytoplasmic dyneins are AAA (ATPase associated with diverse cellular activities) motor proteins responsible for microtubule minus-end-directed intracellular transport. Dynein's unusually large size, ...Cytoplasmic dyneins are AAA (ATPase associated with diverse cellular activities) motor proteins responsible for microtubule minus-end-directed intracellular transport. Dynein's unusually large size, four distinct nucleotide-binding sites, and conformational dynamics pose challenges for the design of potent and selective chemical inhibitors. Here we use structural approaches to develop a model for the inhibition of a well-characterized S. cerevisiae dynein construct by pyrazolo-pyrimidinone-based compounds. These data, along with functional assays of dynein motility and mutagenesis studies, suggest that the compounds inhibit dynein by engaging the regulatory ATPase sites in the AAA3 and AAA4 domains, and not by interacting with dynein's main catalytic site in the AAA1 domain. A double Walker B mutation of the AAA3 and AAA4 sites substantially reduces enzyme activity, suggesting that targeting these regulatory domains is sufficient to inhibit dynein. Our findings reveal how chemical inhibitors can be designed to disrupt allosteric communication across dynein's AAA domains. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.8 MB | Display | ![]() |
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PDB format | ![]() | 1.3 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 418 KB | Display | ![]() |
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Full document | ![]() | 443 KB | Display | |
Data in XML | ![]() | 49.8 KB | Display | |
Data in CIF | ![]() | 74 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7mi3C ![]() 7mi6C ![]() 7mi8C ![]() 4ai6S S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 304889.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() Gene: DYN1, DHC1, YKR054C, e, T4Tp126 / Production host: ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.17 Å3/Da / Density % sol: 61.19 % / Description: Flat and clear |
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Crystal grow | Temperature: 291.15 K / Method: vapor diffusion, sitting drop Details: 100 mM Bis-Tris pH 6.9, 200 mM sodium acetate, 12% PEG 3350, and 10 mM TCEP |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jul 31, 2018 |
Radiation | Monochromator: horizontal bounce Si 111 double crystal monochromator Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.92009 Å / Relative weight: 1 |
Reflection | Resolution: 4.5→47.66 Å / Num. obs: 23226 / % possible obs: 99.5 % / Redundancy: 6.8 % / Biso Wilson estimate: 183.01 Å2 / CC1/2: 0.995 / Net I/σ(I): 5.99 |
Reflection shell | Resolution: 4.5→4.77 Å / Redundancy: 6.5 % / Mean I/σ(I) obs: 1.13 / CC1/2: 0.484 / % possible all: 98.3 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 4AI6 Resolution: 4.5→47.66 Å / SU ML: 0.9176 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 37.3123 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 207.43 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 4.5→47.66 Å
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Refine LS restraints |
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LS refinement shell |
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Refinement TLS params. | Method: refined / Origin x: 45.6099861602 Å / Origin y: 52.0343880284 Å / Origin z: 29.0908856623 Å
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Refinement TLS group | Selection details: all |