X Caps the Phosphate for Phospho-Rab GTPase Recognition in Ciliogenesis and Parkinson's Disease.

Some Rab GTPases, after activation by GDP to GTP exchange, are phosphorylated by the LRRK2 kinase implicated in Parkinson's disease. In the current issue of Structure, Waschbusch et al. (2020) investigate the structural basis for recognition of active phospho-Rab GTPases by the RH2 domain of the effector protein RILPL2.