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Yorodumi- PDB-7ju4: Radial spoke 2 stalk, IDAc, and N-DRC attached with doublet micro... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 7ju4 | ||||||
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| Title | Radial spoke 2 stalk, IDAc, and N-DRC attached with doublet microtubule | ||||||
Components |
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Keywords | STRUCTURAL PROTEIN / cilia / native / complex / microtubule / mechanoregulation | ||||||
| Function / homology | Function and homology informationinner dynein arm / axonemal dynein complex assembly / axonemal dynein complex / inner dynein arm assembly / cilium-dependent cell motility / cilium movement involved in cell motility / 9+2 motile cilium / axoneme assembly / cilium movement / dynein heavy chain binding ...inner dynein arm / axonemal dynein complex assembly / axonemal dynein complex / inner dynein arm assembly / cilium-dependent cell motility / cilium movement involved in cell motility / 9+2 motile cilium / axoneme assembly / cilium movement / dynein heavy chain binding / motile cilium assembly / ciliary plasm / dynein complex / motile cilium / axoneme / microtubule-based process / acrosomal vesicle / GTPase activator activity / cell projection / structural constituent of cytoskeleton / small GTPase binding / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / microtubule binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / microtubule / cytoskeleton / hydrolase activity / cilium / GTPase activity / calcium ion binding / GTP binding / ATP binding / metal ion binding / membrane / cytoplasm Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
Authors | Gui, M. / Ma, M. / Sze-Tu, E. / Wang, X. / Koh, F. / Zhong, E. / Berger, B. / Davis, J. / Dutcher, S. / Zhang, R. / Brown, A. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Struct Mol Biol / Year: 2021Title: Structures of radial spokes and associated complexes important for ciliary motility. Authors: Miao Gui / Meisheng Ma / Erica Sze-Tu / Xiangli Wang / Fujiet Koh / Ellen D Zhong / Bonnie Berger / Joseph H Davis / Susan K Dutcher / Rui Zhang / Alan Brown / ![]() Abstract: In motile cilia, a mechanoregulatory network is responsible for converting the action of thousands of dynein motors bound to doublet microtubules into a single propulsive waveform. Here, we use two ...In motile cilia, a mechanoregulatory network is responsible for converting the action of thousands of dynein motors bound to doublet microtubules into a single propulsive waveform. Here, we use two complementary cryo-EM strategies to determine structures of the major mechanoregulators that bind ciliary doublet microtubules in Chlamydomonas reinhardtii. We determine structures of isolated radial spoke RS1 and the microtubule-bound RS1, RS2 and the nexin-dynein regulatory complex (N-DRC). From these structures, we identify and build atomic models for 30 proteins, including 23 radial-spoke subunits. We reveal how mechanoregulatory complexes dock to doublet microtubules with regular 96-nm periodicity and communicate with one another. Additionally, we observe a direct and dynamically coupled association between RS2 and the dynein motor inner dynein arm subform c (IDAc), providing a molecular basis for the control of motor activity by mechanical signals. These structures advance our understanding of the role of mechanoregulation in defining the ciliary waveform. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7ju4.cif.gz | 2.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7ju4.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7ju4.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7ju4_validation.pdf.gz | 2.6 MB | Display | wwPDB validaton report |
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| Full document | 7ju4_full_validation.pdf.gz | 2.6 MB | Display | |
| Data in XML | 7ju4_validation.xml.gz | 375.6 KB | Display | |
| Data in CIF | 7ju4_validation.cif.gz | 592.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ju/7ju4 ftp://data.pdbj.org/pub/pdb/validation_reports/ju/7ju4 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 22481MC ![]() 7jtkC ![]() 7jtsC C: citing same article ( M: map data used to model this data |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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Components
-Dynein regulatory complex subunit ... , 2 types, 3 molecules 042
| #1: Protein | Mass: 55207.887 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #3: Protein | | Mass: 64986.242 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Protein , 11 types, 49 molecules 1368CGIKOQSWYiky79DHJLPRTXZjtz...
| #2: Protein | Mass: 79454.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||||||||||||
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| #4: Protein | Mass: 6145.567 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||||||||||||
| #5: Protein | Mass: 49665.809 Da / Num. of mol.: 14 / Source method: isolated from a natural source / Source: (natural) ![]() #6: Protein | Mass: 49638.008 Da / Num. of mol.: 14 / Source method: isolated from a natural source / Source: (natural) ![]() #12: Protein | Mass: 10336.775 Da / Num. of mol.: 12 / Source method: isolated from a natural source / Source: (natural) ![]() #14: Protein | | Mass: 28418.410 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #15: Protein | | Mass: 40537.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #16: Protein | | Mass: 75037.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #17: Protein | | Mass: 41881.984 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #18: Protein | Mass: 28691.717 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #19: Protein | | Mass: 134440.578 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Flagellar-associated protein ... , 2 types, 2 molecules AB
| #7: Protein | Mass: 105504.469 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #8: Protein | Mass: 101385.719 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Radial spoke protein ... , 4 types, 7 molecules EFMNUVl
| #9: Protein | Mass: 56856.688 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #10: Protein | Mass: 54781.898 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #11: Protein | Mass: 21504.635 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #13: Protein | | Mass: 35302.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 4 types, 43 molecules 






| #20: Chemical | ChemComp-GDP / #21: Chemical | ChemComp-GTP / #22: Chemical | ChemComp-MG / #23: Chemical | ChemComp-ATP / | |
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-Details
| Has ligand of interest | N |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Complex of radial spoke 2 stalk, IDAc, and N-DRC attached with doublet microtubule Type: COMPLEX / Entity ID: #1-#19 / Source: NATURAL |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Details: unspecified |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Average exposure time: 9 sec. / Electron dose: 38.9 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
| Image scans | Movie frames/image: 30 / Used frames/image: 1-30 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 202168 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Space: REAL |
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About Yorodumi





United States, 1items
Citation
UCSF Chimera








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