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- EMDB-48091: Consensus map of full-length human dynein-1 in phi-like conformat... -
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Basic information
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Title | Consensus map of full-length human dynein-1 in phi-like conformation bound to a Lis1 dimer under Lis1 condition | |||||||||
![]() | Sharpened map of full-length human dynein-1 in phi-like conformation under Lis1 condition | |||||||||
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![]() | dynein-1 / phi-like conformation / Lis1 / MOTOR PROTEIN | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.5 Å | |||||||||
![]() | Yang J / Zhang K | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Nde1 promotes Lis1 binding to full-length autoinhibited human dynein 1. Authors: Jun Yang / Yuanchang Zhao / Pengxin Chai / Ahmet Yildiz / Kai Zhang / ![]() Abstract: Cytoplasmic dynein 1 (dynein) is the primary motor responsible for the retrograde transport of intracellular cargoes along microtubules. Activation of dynein requires the opening its autoinhibited ...Cytoplasmic dynein 1 (dynein) is the primary motor responsible for the retrograde transport of intracellular cargoes along microtubules. Activation of dynein requires the opening its autoinhibited Phi conformation, a process driven by Lis1 and Nde1/Ndel1. Using biochemical reconstitution and cryo-electron microscopy, we demonstrate that Nde1 enhances Lis1 binding to autoinhibited dynein and facilitates Phi opening. We identify a key intermediate in this activation pathway where a single Lis1 dimer binds between Phi-like (Phi) motor rings. In this 'Phi-Lis1' complex, Lis1 interacts with one motor domain through canonical sites at the AAA+ (adenosine triphosphatases associated with diverse cellular activities) ring and stalk, and with AAA5, AAA6 and linker regions of the other motor domain. Mutagenesis and motility assays confirm the critical role of the Phi-Lis1 interface in dynein activation. This intermediate forms rapidly in the presence of Nde1, although Nde1 is not part of Phi-Lis1. These findings provide key insights into how Nde1 promotes Lis1-mediated Phi opening. | |||||||||
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 229.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 16.1 KB 16.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.1 KB | Display | ![]() |
Images | ![]() | 31.7 KB | ||
Masks | ![]() | 244.1 MB | ![]() | |
Filedesc metadata | ![]() | 4 KB | ||
Others | ![]() ![]() ![]() | 123.9 MB 226.8 MB 226.8 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 22.1 KB | Display | |
Data in CIF | ![]() | 29 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
EMDB pages | ![]() ![]() |
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Map
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Annotation | Sharpened map of full-length human dynein-1 in phi-like conformation under Lis1 condition | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 2.2221 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
-Additional map: Unsharpened map of full-length human dynein-1 in phi-like...
File | emd_48091_additional_1.map | ||||||||||||
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Annotation | Unsharpened map of full-length human dynein-1 in phi-like conformation under Lis1 condition | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map of full-length human dynein-1 in phi-like...
File | emd_48091_half_map_1.map | ||||||||||||
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Annotation | Half map of full-length human dynein-1 in phi-like conformation under Lis1 condition | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map of full-length human dynein-1 in phi-like...
File | emd_48091_half_map_2.map | ||||||||||||
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Annotation | Half map of full-length human dynein-1 in phi-like conformation under Lis1 condition | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Consensus map of full-length human dynein-1 in phi-like conformat...
Entire | Name: Consensus map of full-length human dynein-1 in phi-like conformation bound to a Lis1 dimer under Lis1 condition |
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Components |
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-Supramolecule #1: Consensus map of full-length human dynein-1 in phi-like conformat...
Supramolecule | Name: Consensus map of full-length human dynein-1 in phi-like conformation bound to a Lis1 dimer under Lis1 condition type: complex / ID: 1 / Parent: 0 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 1.5 MDa |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.2 Details: 25 mM HEPES pH 7.2, 150 mM KCl, 1 mM MgCl2, 5 mM DTT, 3 mM ATP |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | TFS GLACIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 30.0 µm / Calibrated defocus max: 2.6 µm / Calibrated defocus min: 1.2 µm / Calibrated magnification: 45000 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.6 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 45000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |