National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01GM107214
米国
引用
ジャーナル: Nature / 年: 2020 タイトル: Structure of LRRK2 in Parkinson's disease and model for microtubule interaction. 著者: 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 / 要旨: 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.
モデルのタイプ: OTHER 詳細: Generated initial models from ab initio refinement in Cryosparc.
最終 再構成
想定した対称性 - 点群: C3 (3回回転対称) / 解像度のタイプ: BY AUTHOR / 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF ソフトウェア:
名称
詳細
RELION (ver. 3)
C1
cryoSPARC (ver. 2)
C3
詳細: For the signal subtracted map, 105,787 (tripled) particles went into the final map that achieved 3.8A resolution. 使用した粒子像数: 70953
初期 角度割当
タイプ: MAXIMUM LIKELIHOOD ソフトウェア: (名称: RELION (ver. 3), cryoSPARC (ver. 2)) 詳細: Signal subtracted map was generated in Relion3. The C3 map however was created in Cryosparc 2.
最終 角度割当
タイプ: MAXIMUM LIKELIHOOD ソフトウェア: (名称: RELION (ver. 3), cryoSPARC (ver. 2)) 詳細: Signal subtracted map was generated in Relion3. The C3 map however was created in Cryosparc 2.