The protein OCRL is linked to Lowe syndrome and Dent disease, two related diseases. Mutations in the OCRL Ash-RhoGAP domain abolish its interactions with the F&H motifs in APPL1, Ses1 and Ses2. Structural and biochemical analysis of the OCRL Ash-RhoGAP domain with F&H motifs shows that clinical mutations destabilize the Ash-RhoGAP domain, abolishing the interactions between OCRL- and F&H-motif-containing proteins.
- Michelle Pirruccello
- Laura E Swan
- Pietro De Camilli