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Yorodumi- EMDB-11313: Cryo-EM structure of the dynactin complex at 3.8 Angstrom resolution -
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Basic information
| Entry | Database: EMDB / ID: EMD-11313 | |||||||||
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| Title | Cryo-EM structure of the dynactin complex at 3.8 Angstrom resolution | |||||||||
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Keywords | Dynactin / Complex / Scaffold / Cytoskeleton / STRUCTURAL PROTEIN | |||||||||
| Function / homology | Function and homology informationAdvanced glycosylation endproduct receptor signaling / retrograde axonal transport of mitochondrion / 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 / RHOF GTPase cycle ...Advanced glycosylation endproduct receptor signaling / retrograde axonal transport of mitochondrion / 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 / RHOF GTPase cycle / Formation of the canonical BAF (cBAF) complex / Formation of the polybromo-BAF (pBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of the non-canonical BAF (ncBAF) complex / GBP-mediated host defense / sterol sensor activity / Platelet degranulation / Gap junction degradation / Formation of annular gap junctions / UCH proteinases / dynactin complex / centriolar subdistal appendage / Clathrin-mediated endocytosis / centriole-centriole cohesion / 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 / Recruitment of mitotic centrosome proteins and complexes / microtubule anchoring at centrosome / F-actin capping protein complex / WASH complex / Regulation of CDH1 Function / Formation of the dystrophin-glycoprotein complex (DGC) / lysosome to ER cholesterol transport / ventral spinal cord development / retromer complex / cytoskeleton-dependent cytokinesis / dynein complex / microtubule plus-end / mitotic nuclear membrane disassembly / positive regulation of microtubule nucleation / cellular response to cytochalasin B / regulation of transepithelial transport / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / protein localization to adherens junction / non-motile cilium assembly / barbed-end actin filament capping / dense body / Neutrophil degranulation / Tat protein binding / motor behavior / postsynaptic actin cytoskeleton / apical protein localization / neuron cellular homeostasis / retrograde transport, endosome to Golgi / adherens junction assembly / neuromuscular process / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / microtubule associated complex / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / nuclear migration / Recruitment of NuMA to mitotic centrosomes / tight junction / COPI-mediated anterograde transport / apical junction complex / intercellular bridge / establishment of mitotic spindle orientation / NuA4 histone acetyltransferase complex / regulation of norepinephrine uptake / transporter regulator activity / cell leading edge / cortical cytoskeleton / cleavage furrow / establishment or maintenance of cell polarity / neuromuscular junction development / nitric-oxide synthase binding / dynein complex binding / brush border / regulation of synaptic vesicle endocytosis / kinesin binding / regulation of protein localization to plasma membrane / microtubule-based process / positive regulation of double-strand break repair via homologous recombination / axonogenesis / stress fiber / cholesterol homeostasis / axon cytoplasm / neuron projection maintenance / centriole / calyx of Held / cell motility / nitric-oxide synthase regulator activity / mitotic spindle organization / regulation of mitotic spindle organization Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
Authors | Lau CK / Lacey SE | |||||||||
| Funding support | United Kingdom, 2 items
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Citation | Journal: EMBO J / Year: 2021Title: Cryo-EM reveals the complex architecture of dynactin's shoulder region and pointed end. Authors: Clinton K Lau / Francis J O'Reilly / Balaji Santhanam / Samuel E Lacey / Juri Rappsilber / Andrew P Carter / ![]() Abstract: Dynactin is a 1.1 MDa complex that activates the molecular motor dynein for ultra-processive transport along microtubules. In order to do this, it forms a tripartite complex with dynein and a coiled- ...Dynactin is a 1.1 MDa complex that activates the molecular motor dynein for ultra-processive transport along microtubules. In order to do this, it forms a tripartite complex with dynein and a coiled-coil adaptor. Dynactin consists of an actin-related filament whose length is defined by its flexible shoulder domain. Despite previous cryo-EM structures, the molecular architecture of the shoulder and pointed end of the filament is still poorly understood due to the lack of high-resolution information in these regions. Here we combine multiple cryo-EM datasets and define precise masking strategies for particle signal subtraction and 3D classification. This overcomes domain flexibility and results in high-resolution maps into which we can build the shoulder and pointed end. The unique architecture of the shoulder securely houses the p150 subunit and positions the four identical p50 subunits in different conformations to bind dynactin's filament. The pointed end map allows us to build the first structure of p62 and reveals the molecular basis for cargo adaptor binding to different sites at the pointed end. | |||||||||
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Structure visualization
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_11313.map.gz | 287.7 MB | EMDB map data format | |
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| Header (meta data) | emd-11313-v30.xml emd-11313.xml | 28.9 KB 28.9 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_11313_fsc.xml | 15.2 KB | Display | FSC data file |
| Images | emd_11313.png | 34.2 KB | ||
| Masks | emd_11313_msk_1.map | 307.5 MB | Mask map | |
| Filedesc metadata | emd-11313.cif.gz | 8.8 KB | ||
| Others | emd_11313_half_map_1.map.gz emd_11313_half_map_2.map.gz | 244.9 MB 244.9 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11313 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11313 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6znlMC ![]() 6znmC ![]() 6znnC ![]() 6znoC ![]() 6zo4C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_11313.map.gz / Format: CCP4 / Size: 307.5 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: 1.34 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
| File | emd_11313_msk_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_11313_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_11313_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Dynactin complex
+Supramolecule #1: Dynactin complex
+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 6
+Macromolecule #9: Dynactin subunit 5
+Macromolecule #10: Dynactin subunit 4
+Macromolecule #11: Dynactin subunit 1
+Macromolecule #12: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #13: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #14: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 52.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Refinement | Protocol: AB INITIO MODEL |
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| Output model | ![]() PDB-6znl: |
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About Yorodumi


Keywords
Authors
United Kingdom, 2 items
Citation
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