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Basic information
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Title | Composite structure of dynein-dynactin-BICDR on microtubules | ||||||||||||
![]() | Composite structure of the dynein-dynactin-BICDR1 complex | ||||||||||||
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![]() | Dynein / dynactin / cargo transport / activating adaptor / cytoskeleton / STRUCTURAL PROTEIN | ||||||||||||
Function / homology | ![]() Golgi to secretory granule transport / RHOD GTPase cycle / Factors involved in megakaryocyte development and platelet production / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation ...Golgi to secretory granule transport / RHOD GTPase cycle / Factors involved in megakaryocyte development and platelet production / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation / retrograde axonal transport of mitochondrion / UCH proteinases / centriolar subdistal appendage / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / Clathrin-mediated endocytosis / dynactin complex / positive regulation of neuromuscular junction development / Regulation of PLK1 Activity at G2/M Transition / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / centriole-centriole cohesion / Recruitment of mitotic centrosome proteins and complexes / visual behavior / transport along microtubule / microtubule anchoring at centrosome / F-actin capping protein complex / WASH complex / negative regulation of filopodium assembly / dynein light chain binding / dynein heavy chain binding / ventral spinal cord development / cellular response to cytochalasin B / melanosome transport / nuclear membrane disassembly / retromer complex / ciliary tip / cytoskeleton-dependent cytokinesis / microtubule plus-end / regulation of transepithelial transport / positive regulation of intracellular transport / morphogenesis of a polarized epithelium / Intraflagellar transport / protein localization to adherens junction / regulation of metaphase plate congression / postsynaptic actin cytoskeleton / structural constituent of postsynaptic actin cytoskeleton / positive regulation of microtubule nucleation / establishment of spindle localization / Tat protein binding / positive regulation of spindle assembly / dense body / barbed-end actin filament capping / Neutrophil degranulation / apical protein localization / non-motile cilium assembly / coronary vasculature development / adherens junction assembly / dynein complex / regulation of lamellipodium assembly / regulation of cell morphogenesis / minus-end-directed microtubule motor activity / retrograde transport, endosome to Golgi / COPI-independent Golgi-to-ER retrograde traffic / retrograde axonal transport / tight junction / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / dynein light intermediate chain binding / cytoplasmic dynein complex / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / P-body assembly / MHC class II antigen presentation / microtubule associated complex / Recruitment of NuMA to mitotic centrosomes / microtubule motor activity / aorta development / dynein intermediate chain binding / COPI-mediated anterograde transport / ventricular septum development / nuclear migration / centrosome localization / regulation of norepinephrine uptake / motor behavior / apical junction complex / neuromuscular junction development / nitric-oxide synthase binding / microtubule-based movement / neuromuscular process / establishment or maintenance of cell polarity / NuA4 histone acetyltransferase complex / dynein complex binding / cortical cytoskeleton / intercellular bridge / cell leading edge / establishment of mitotic spindle orientation / regulation of synaptic vesicle endocytosis Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 20.0 Å | ||||||||||||
![]() | Chaaban S / Carter AP | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of dynein-dynactin on microtubules shows tandem adaptor binding. Authors: Sami Chaaban / Andrew P Carter / ![]() Abstract: Cytoplasmic dynein is a microtubule motor that is activated by its cofactor dynactin and a coiled-coil cargo adaptor. Up to two dynein dimers can be recruited per dynactin, and interactions between ...Cytoplasmic dynein is a microtubule motor that is activated by its cofactor dynactin and a coiled-coil cargo adaptor. Up to two dynein dimers can be recruited per dynactin, and interactions between them affect their combined motile behaviour. Different coiled-coil adaptors are linked to different cargos, and some share motifs known to contact sites on dynein and dynactin. There is limited structural information on how the resulting complex interacts with microtubules and how adaptors are recruited. Here we develop a cryo-electron microscopy processing pipeline to solve the high-resolution structure of dynein-dynactin and the adaptor BICDR1 bound to microtubules. This reveals the asymmetric interactions between neighbouring dynein motor domains and how they relate to motile behaviour. We found that two adaptors occupy the complex. Both adaptors make similar interactions with the dyneins but diverge in their contacts with each other and dynactin. Our structure has implications for the stability and stoichiometry of motor recruitment by cargos. | ||||||||||||
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 201.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 44.7 KB 44.7 KB | Display Display | ![]() |
Images | ![]() | 61.2 KB | ||
Filedesc metadata | ![]() | 14.5 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 432.1 KB | Display | ![]() |
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Full document | ![]() | 431.7 KB | Display | |
Data in XML | ![]() | 7 KB | Display | |
Data in CIF | ![]() | 8.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7z8fMC ![]() 7z8gC ![]() 7z8hC ![]() 7z8iC ![]() 7z8jC ![]() 7z8kC ![]() 7z8lC ![]() 7z8mC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Composite structure of the dynein-dynactin-BICDR1 complex | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 2.489 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : Complex of dynein, dynactin, and BICDR1 bound to microtubules
+Supramolecule #1: Complex of dynein, dynactin, and BICDR1 bound to microtubules
+Supramolecule #2: Dynein, cytoplasmic 1
+Supramolecule #3: Dynactin
+Supramolecule #4: BICDR1
+Macromolecule #1: ARP1 actin related protein 1 homolog A
+Macromolecule #2: Actin, cytoplasmic 1
+Macromolecule #3: Arp11
+Macromolecule #4: Capping protein (Actin filament) muscle Z-line, alpha 1
+Macromolecule #5: F-actin capping protein beta subunit
+Macromolecule #6: Dynactin subunit 2
+Macromolecule #7: Dynactin subunit 3
+Macromolecule #8: Dynactin subunit 1
+Macromolecule #9: Dynactin 6
+Macromolecule #10: Dynactin subunit 5
+Macromolecule #11: BICD family-like cargo adapter 1
+Macromolecule #12: Dynactin subunit 4
+Macromolecule #13: Cytoplasmic dynein 1 heavy chain 1
+Macromolecule #14: Cytoplasmic dynein 1 intermediate chain 2
+Macromolecule #15: Cytoplasmic dynein 1 light intermediate chain 2
+Macromolecule #16: Dynein light chain roadblock-type 1
+Macromolecule #17: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #18: MAGNESIUM ION
+Macromolecule #19: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #20: ZINC ION
+Macromolecule #21: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.2 Component:
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Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 293.15 K / Instrument: FEI VITROBOT MARK IV / Details: 20 second incubation. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 14 / Number real images: 88715 / Average exposure time: 3.0 sec. / Average electron dose: 53.0 e/Å2 Details: Images were collected in movie-mode and fractionated into 53 movie frames |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 4.0 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 81000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 20.0 Å / Resolution method: OTHER / Software - Name: RELION Details: This is a composite of multiple maps with resolutions ranging from 3.3-12.2 A, resampled on a grid of 2.5 A/pix Number images used: 628033 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION |
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | ![]() PDB-7z8f: |