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Yorodumi- EMDB-16312: In situ outer dynein arm from Chlamydomonas reinhardtii in the po... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-16312 | |||||||||
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Title | In situ outer dynein arm from Chlamydomonas reinhardtii in the post-power stroke state | |||||||||
Map data | ||||||||||
Sample |
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Keywords | axoneme / outer dynein arm / post power stroke / dynein / MOTOR PROTEIN | |||||||||
Function / homology | Function and homology information outer dynein arm / outer dynein arm assembly / dynein light chain binding / cilium movement / dynein heavy chain binding / dynein complex / minus-end-directed microtubule motor activity / cytoplasmic dynein complex / dynein light intermediate chain binding / motile cilium ...outer dynein arm / outer dynein arm assembly / dynein light chain binding / cilium movement / dynein heavy chain binding / dynein complex / minus-end-directed microtubule motor activity / cytoplasmic dynein complex / dynein light intermediate chain binding / motile cilium / dynein intermediate chain binding / microtubule-based movement / microtubule-based process / microtubule / calcium ion binding / ATP hydrolysis activity / ATP binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Chlamydomonas reinhardtii (plant) / Tetrahymena thermophila (eukaryote) | |||||||||
Method | subtomogram averaging / cryo EM / Resolution: 30.3 Å | |||||||||
Authors | Zimmermann NEL / Noga A / Obbineni JM / Ishikawa T | |||||||||
Funding support | Switzerland, 1 items
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Citation | Journal: EMBO J / Year: 2023 Title: ATP-induced conformational change of axonemal outer dynein arms revealed by cryo-electron tomography. Authors: Noemi Zimmermann / Akira Noga / Jagan Mohan Obbineni / Takashi Ishikawa / Abstract: Axonemal outer dynein arm (ODA) motors generate force for ciliary beating. We analyzed three states of the ODA during the power stroke cycle using in situ cryo-electron tomography, subtomogram ...Axonemal outer dynein arm (ODA) motors generate force for ciliary beating. We analyzed three states of the ODA during the power stroke cycle using in situ cryo-electron tomography, subtomogram averaging, and classification. These states of force generation depict the prepower stroke, postpower stroke, and intermediate state conformations. Comparison of these conformations to published in vitro atomic structures of cytoplasmic dynein, ODA, and the Shulin-ODA complex revealed differences in the orientation and position of the dynein head. Our analysis shows that in the absence of ATP, all dynein linkers interact with the AAA3/AAA4 domains, indicating that interactions with the adjacent microtubule doublet B-tubule direct dynein orientation. For the prepower stroke conformation, there were changes in the tail that is anchored on the A-tubule. We built models starting with available high-resolution structures to generate a best-fitting model structure for the in situ pre- and postpower stroke ODA conformations, thereby showing that ODA in a complex with Shulin adopts a similar conformation as the active prepower stroke ODA in the axoneme. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_16312.map.gz | 1.4 MB | EMDB map data format | |
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Header (meta data) | emd-16312-v30.xml emd-16312.xml | 43.4 KB 43.4 KB | Display Display | EMDB header |
Images | emd_16312.png | 126.1 KB | ||
Others | emd_16312_half_map_1.map.gz emd_16312_half_map_2.map.gz | 1.4 MB 1.4 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-16312 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-16312 | HTTPS FTP |
-Validation report
Summary document | emd_16312_validation.pdf.gz | 754.4 KB | Display | EMDB validaton report |
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Full document | emd_16312_full_validation.pdf.gz | 754 KB | Display | |
Data in XML | emd_16312_validation.xml.gz | 7.3 KB | Display | |
Data in CIF | emd_16312_validation.cif.gz | 8.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-16312 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-16312 | HTTPS FTP |
-Related structure data
Related structure data | 8bx8MC 8bwyC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_16312.map.gz / Format: CCP4 / Size: 1.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 8.49 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_16312_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_16312_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : In situ outer dynein arm
+Supramolecule #1: In situ outer dynein arm
+Macromolecule #1: Dynein heavy chain, outer arm protein
+Macromolecule #2: Outer arm dynein beta heavy chain
+Macromolecule #3: Dynein-1-alpha heavy chain, flagellar inner arm I1 complex protei...
+Macromolecule #4: Dynein intermediate chain 2
+Macromolecule #5: Flagellar outer dynein arm intermediate protein, putative
+Macromolecule #6: Dynein light chain roadblock-type 2 protein
+Macromolecule #7: Dynein light chain roadblock-type 2 protein
+Macromolecule #8: Dynein light chain
+Macromolecule #9: Dynein light chain
+Macromolecule #10: Dynein light chain
+Macromolecule #11: Dynein light chain
+Macromolecule #12: Dynein light chain
+Macromolecule #13: Dynein light chain
+Macromolecule #14: Dynein light chain tctex-type 1 protein
+Macromolecule #15: Dynein light chain 2A
+Macromolecule #16: Thioredoxin
+Macromolecule #17: Dynein light chain 1
+Macromolecule #18: Dynein light chain 4A
+Macromolecule #19: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #20: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #21: MAGNESIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | subtomogram averaging |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 1.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 4.0 µm / Nominal defocus min: 3.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 30.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number subtomograms used: 2131 |
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Extraction | Number tomograms: 8 / Number images used: 3167 |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: RIGID BODY FIT |
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Output model | PDB-8bx8: |