National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01GM107214
United States
Citation
Journal: Nature / Year: 2020 Title: Structure of LRRK2 in Parkinson's disease and model for microtubule interaction. Authors: C K Deniston / J Salogiannis / S Mathea / D M Snead / I Lahiri / M Matyszewski / O Donosa / R Watanabe / J Böhning / A K Shiau / S Knapp / E Villa / S L Reck-Peterson / A E Leschziner / Abstract: Leucine-rich repeat kinase 2 (LRRK2) is the most commonly mutated gene in familial Parkinson's disease and is also linked to its idiopathic form. LRRK2 has been proposed to function in membrane ...Leucine-rich repeat kinase 2 (LRRK2) is the most commonly mutated gene in familial Parkinson's disease and is also linked to its idiopathic form. LRRK2 has been proposed to function in membrane trafficking and colocalizes with microtubules. Despite the fundamental importance of LRRK2 for understanding and treating Parkinson's disease, structural information on the enzyme is limited. Here we report the structure of the catalytic half of LRRK2, and an atomic model of microtubule-associated LRRK2 built using a reported cryo-electron tomography in situ structure. We propose that the conformation of the LRRK2 kinase domain regulates its interactions with microtubules, with a closed conformation favouring oligomerization on microtubules. We show that the catalytic half of LRRK2 is sufficient for filament formation and blocks the motility of the microtubule-based motors kinesin 1 and cytoplasmic dynein 1 in vitro. Kinase inhibitors that stabilize an open conformation relieve this interference and reduce the formation of LRRK2 filaments in cells, whereas inhibitors that stabilize a closed conformation do not. Our findings suggest that LRRK2 can act as a roadblock for microtubule-based motors and have implications for the design of therapeutic LRRK2 kinase inhibitors.
History
Deposition
Jan 29, 2020
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Header (metadata) release
Aug 26, 2020
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Map release
Aug 26, 2020
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Update
Nov 20, 2024
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Current status
Nov 20, 2024
Processing site: RCSB / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK II
Details
4uM concentration
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Electron microscopy
Microscope
FEI TITAN KRIOS
Specialist optics
Energy filter - Name: GIF 2002
Image recording
Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 3826 / Average exposure time: 8.0 sec. / Average electron dose: 6.65 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Type of model: OTHER Details: Generated initial models from ab initio refinement in Cryosparc.
Final reconstruction
Applied symmetry - Point group: C3 (3 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Software:
Name
details
RELION (ver. 3)
C1
cryoSPARC (ver. 2)
C3
Details: For the signal subtracted map, 105,787 (tripled) particles went into the final map that achieved 3.8A resolution. Number images used: 70953
Initial angle assignment
Type: MAXIMUM LIKELIHOOD / Software: (Name: RELION (ver. 3), cryoSPARC (ver. 2)) Details: Signal subtracted map was generated in Relion3. The C3 map however was created in Cryosparc 2.
Final angle assignment
Type: MAXIMUM LIKELIHOOD / Software: (Name: RELION (ver. 3), cryoSPARC (ver. 2)) Details: Signal subtracted map was generated in Relion3. The C3 map however was created in Cryosparc 2.
FSC plot (resolution estimation)
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