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Open data
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Basic information
| Entry | Database: PDB / ID: 9ynf | ||||||||||||||||||||||||||||||
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| Title | Motor domain of human dynein-1 in post1 state | ||||||||||||||||||||||||||||||
Components | Cytoplasmic dynein 1 heavy chain 1 | ||||||||||||||||||||||||||||||
Keywords | MOTOR PROTEIN / Dynein-1 | ||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationpositive regulation of intracellular transport / regulation of metaphase plate congression / positive regulation of spindle assembly / establishment of spindle localization / retrograde axonal transport / COPI-independent Golgi-to-ER retrograde traffic / P-body assembly / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex ...positive regulation of intracellular transport / regulation of metaphase plate congression / positive regulation of spindle assembly / establishment of spindle localization / retrograde axonal transport / COPI-independent Golgi-to-ER retrograde traffic / P-body assembly / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex / nuclear migration / dynein intermediate chain binding / COPI-mediated anterograde transport / cytoplasmic microtubule / cytoplasmic microtubule organization / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / axon cytoplasm / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / AURKA Activation by TPX2 / Resolution of Sister Chromatid Cohesion / stress granule assembly / regulation of mitotic spindle organization / mitotic spindle organization / filopodium / RHO GTPases Activate Formins / HCMV Early Events / Aggrephagy / azurophil granule lumen / Separation of Sister Chromatids / Regulation of PLK1 Activity at G2/M Transition / positive regulation of cold-induced thermogenesis / cell cortex / microtubule / cell division / Neutrophil degranulation / centrosome / RNA binding / extracellular exosome / extracellular region / ATP binding / membrane / identical protein binding / cytosol Similarity search - Function | ||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.92 Å | ||||||||||||||||||||||||||||||
Authors | Yang, J. / 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. | ||||||||||||||||||||||||||||||
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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 | 9ynf.cif.gz | 580.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9ynf.ent.gz | 450.1 KB | Display | PDB format |
| PDBx/mmJSON format | 9ynf.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/yn/9ynf ftp://data.pdbj.org/pub/pdb/validation_reports/yn/9ynf | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 73176MC ![]() 9dgpC ![]() 9dgqC ![]() 9dgrC ![]() 9dgsC ![]() 9dgtC ![]() 9dguC ![]() 9dgvC ![]() 9yncC ![]() 9yndC ![]() 9yneC ![]() 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
| #1: Protein | Mass: 533083.250 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DYNC1H1, DHC1, DNCH1, DNCL, DNECL, DYHC, KIAA0325 / Production host: ![]() | ||||||||||
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| #2: Chemical | | #3: Chemical | ChemComp-ATP / | #4: Chemical | ChemComp-ANP / | #5: Chemical | ChemComp-MG / | Has ligand of interest | Y | 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: Motor domain of human dynein-1 in post1 state / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.2 |
| Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Microscopy | Model: TFS GLACIOS |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 45000 X / Calibrated magnification: 45000 X / Nominal defocus max: 2600 nm / Nominal defocus min: 1200 nm / Calibrated defocus min: 1200 nm / Calibrated defocus max: 2600 nm / Cs: 2.7 mm / C2 aperture diameter: 30 µm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.92 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 326895 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Highest resolution: 3.92 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
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About Yorodumi




Homo sapiens (human)
United States, 1items
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FIELD EMISSION GUN