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Yorodumi- PDB-9dgs: Dynactin and dynein tail region of dynein-dynactin complex on mic... -
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Basic information
| Entry | Database: PDB / ID: 9dgs | |||||||||||||||||||||||||||
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| Title | Dynactin and dynein tail region of dynein-dynactin complex on microtubules | |||||||||||||||||||||||||||
Components |
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Keywords | MOTOR PROTEIN / dynein / dynactin / microtubule | |||||||||||||||||||||||||||
| Function / homology | Function and homology information: / Factors involved in megakaryocyte development and platelet production / 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 ...: / Factors involved in megakaryocyte development and platelet production / 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 / 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 / UCH proteinases / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / Clathrin-mediated endocytosis / Regulation of CDH1 Function / Formation of the dystrophin-glycoprotein complex (DGC) / dynactin complex / centriolar subdistal appendage / positive regulation of neuromuscular junction development / centriole-centriole cohesion / 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 / nuclear membrane disassembly / WASH complex / ventral spinal cord development / cytoskeleton-dependent cytokinesis / retromer complex / dynein complex / microtubule plus-end / cellular response to cytochalasin B / positive regulation of microtubule nucleation / regulation of transepithelial transport / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / melanosome transport / protein localization to adherens junction / barbed-end actin filament capping / dense body / Neutrophil degranulation / Tat protein binding / coronary vasculature development / postsynaptic actin cytoskeleton / non-motile cilium assembly / regulation of cell morphogenesis / retrograde transport, endosome to Golgi / adherens junction assembly / apical protein localization / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / minus-end-directed microtubule motor activity / MHC class II antigen presentation / microtubule associated complex / Recruitment of NuMA to mitotic centrosomes / dynein light intermediate chain binding / cytoplasmic dynein complex / tight junction / COPI-mediated anterograde transport / ventricular septum development / aorta development / microtubule-based movement / nuclear migration / apical junction complex / neuromuscular process / establishment of mitotic spindle orientation / neuromuscular junction development / regulation of norepinephrine uptake / transporter regulator activity / dynein intermediate chain binding / NuA4 histone acetyltransferase complex / motor behavior / cell leading edge / establishment or maintenance of cell polarity / cortical cytoskeleton / cleavage furrow / microtubule organizing center / dynein complex binding / nitric-oxide synthase binding / brush border / regulation of synaptic vesicle endocytosis / kinesin binding / regulation of protein localization to plasma membrane / intercellular bridge / positive regulation of double-strand break repair via homologous recombination / stress fiber / neuron projection maintenance / axon cytoplasm / cytoskeleton organization / axonogenesis Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||||||||||||||||||||
Authors | Rao, Q. / Chai, P. / Zhang, K. | |||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nature / Year: 2026Title: Roles of microtubules and LIS1 in dynein transport machinery assembly. Authors: Qinhui Rao / Jun Yang / Pengxin Chai / Steven Markus / Kai Zhang / ![]() Abstract: Cytoplasmic dynein-1, a microtubule (MT)-based motor protein, requires dynactin and a coiled-coil adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The roles of MTs and dynein ...Cytoplasmic dynein-1, a microtubule (MT)-based motor protein, requires dynactin and a coiled-coil adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The roles of MTs and dynein regulator lissencephaly-1 (LIS1) in DDA assembly have remained elusive. Here we use cryo-electron microscopy to determine the structural basis of MT- and LIS1-mediated DDA assembly. We show that an adaptor-independent dynein-dynactin complex spontaneously forms on MTs with an intrinsic 2:1 stoichiometry in a highly efficient manner, driven by parallel alignment of dynein tails upon MT binding. Adaptors can wedge into and exchange within the assembled MT-bound dynein-dynactin complex; these processes are enabled by relative rotations between dynein and dynactin and facilitated by the dynein light-intermediate chains that assist the adaptor 'search' mechanism. Although LIS1 is dispensable for efficient DD(A)-MT assembly, its presence expands the conformational landscape of DD(A) assemblies on MTs. Cryo-electron microscopy reveals that LIS1 bridges dynactin p150 and dynein in both the closed Phi-like and open prepowerstroke states, stabilizing low-MT-affinity intermediates that tether dynein molecules in proximity to MTs and prime them for subsequent DD(A) assembly through alternative pathways. These findings demonstrate the dynamic adaptability of the dynein transport machinery and the coordinated roles of MTs and LIS1 in DDA assembly. #1: Journal: bioRxiv / Year: 2024 Title: Molecular basis for the assembly of the dynein transport machinery on microtubules. Authors: Qinhui Rao / Pengxin Chai / Kai Zhang / ![]() Abstract: Cytoplasmic dynein-1, a microtubule-based motor protein, requires dynactin and an adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The role of microtubules in DDA assembly has ...Cytoplasmic dynein-1, a microtubule-based motor protein, requires dynactin and an adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The role of microtubules in DDA assembly has been elusive. Here, we reveal detailed structural insights into microtubule-mediated DDA assembly using cryo-electron microscopy. We find that an adaptor-independent dynein-dynactin complex (DD) predominantly forms on microtubules in an intrinsic 2:1 stoichiometry, induced by spontaneous parallelization of dynein upon microtubule binding. Adaptors can squeeze in and exchange within the assembled microtubule-bound DD complex, which is enabled by relative rotations between dynein and dynactin, and further facilitated by dynein light intermediate chains that assist in an adaptor 'search' mechanism. Our findings elucidate the dynamic adaptability of the dynein transport machinery, and reveal a new mode for assembly of the motile complex. | |||||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9dgs.cif.gz | 2.2 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9dgs.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9dgs.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dg/9dgs ftp://data.pdbj.org/pub/pdb/validation_reports/dg/9dgs | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 46846MC ![]() 9dgpC ![]() 9dgqC ![]() 9dgrC ![]() 9dgtC ![]() 9dguC ![]() 9dgvC ![]() 9yncC ![]() 9yndC ![]() 9yneC ![]() 9ynfC ![]() 9yngC ![]() 9ynhC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 3 types, 10 molecules ABCDEFGIHJ
| #1: Protein | Mass: 42670.688 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Source: (natural) ![]() #2: Protein | | Mass: 41782.660 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q6QAQ1, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement #3: Protein | | Mass: 46250.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-F-actin-capping protein subunit ... , 2 types, 2 molecules KL
| #4: Protein | Mass: 33059.848 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #5: Protein | Mass: 30669.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Dynactin subunit ... , 6 types, 11 molecules MNPQORUVWZY
| #6: Protein | Mass: 44704.414 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() #7: Protein | Mass: 21192.477 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #8: Protein | | Mass: 20703.910 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #9: Protein | | Mass: 20150.533 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #10: Protein | Mass: 142015.484 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #11: Protein | | Mass: 52920.434 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Cytoplasmic dynein 1 ... , 2 types, 8 molecules efmnghop
| #12: Protein | Mass: 532739.562 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() #13: Protein | Mass: 68567.219 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 3 types, 13 molecules 




| #14: Chemical | ChemComp-ADP / #15: Chemical | ChemComp-ATP / | #16: Chemical | |
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-Details
| Has ligand of interest | N |
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| Has protein modification | N |
-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: Dynactin and dynein tail region of dynein-dynactin complex on microtubules Type: COMPLEX / Entity ID: #1-#13 / Source: NATURAL |
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| Molecular weight | Value: 5 MDa / Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.2 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| 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: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1200 nm / Calibrated defocus min: 1200 nm / Calibrated defocus max: 3000 nm |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 62404 / Symmetry type: POINT |
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FIELD EMISSION GUN