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- PDB-7jts: Stalk of radial spoke 1 attached with doublet microtubule from Ch... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7jts | ||||||
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Title | Stalk of radial spoke 1 attached with doublet microtubule from Chlamydomonas reinhardtii | ||||||
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![]() | STRUCTURAL PROTEIN / cilia / native / complex / microtubule / mechanoregulation | ||||||
Function / homology | ![]() radial spoke / positive regulation of cilium-dependent cell motility / motile cilium assembly / dynein complex / ciliary plasm / motile cilium / axoneme / microtubule-based process / enzyme regulator activity / acrosomal vesicle ...radial spoke / positive regulation of cilium-dependent cell motility / motile cilium assembly / dynein complex / ciliary plasm / motile cilium / axoneme / microtubule-based process / enzyme regulator activity / acrosomal vesicle / cilium / microtubule / cytoskeleton / calcium ion binding / membrane / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.1 Å | ||||||
![]() | 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 | ![]()
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![]() | ![]() Title: 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. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 223.6 KB | Display | ![]() |
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PDB format | ![]() | 137.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 635.3 KB | Display | ![]() |
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Full document | ![]() | 635 KB | Display | |
Data in XML | ![]() | 35.4 KB | Display | |
Data in CIF | ![]() | 58 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 22480MC ![]() 7jtkC ![]() 7ju4C C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 56856.688 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #2: Protein | Mass: 10336.775 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #3: Protein | | Mass: 28418.410 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #4: Protein | | Mass: 75037.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #5: Protein | | Mass: 18317.215 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: stalk of radial spoke 1 / Type: COMPLEX / Entity ID: all / 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 / Details: This sample is attached with doublet microtubule |
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: ![]() |
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
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 6.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 143514 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Space: REAL |