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Search results 1 to 1 out of 1 for Rasal1

Category restricted to ProteinDomain (x)



Category: ProteinDomain
Type Details Score
Protein Domain
Type: Family
Description: GAP1 (GTPase-activating protein 1) family members include RASA2 (GAP1m), RASAL (RASAL1), GAP1(IP4BP or RASA3), and CAPRI (RASA4). They all display Ras GAP activity. With the exception of RASA2, they all possess an arginine finger-dependent GAP activity on Rap1 [, ]. They contain N-terminal tandem C2 domain repeats, a centrally located Ras-GAP domain, and a PH (pleckstrin homology) domain containing a Btk motif [].RASAL, like Ca2+ -promoted Ras inactivator (CAPRI, or RASAL4), is a cytosolic protein that undergoes a rapid translocation to the plasma membrane in response to receptor-mediated elevation in the concentration of intracellular free Ca2+, a translocation that activates its ability to function as a RasGAP. However, unlike RASAL4, RASAL undergoes an oscillatory translocation to the plasma membrane that occurs in synchrony with repetitive Ca2+ spikes. Its tandem C2 domains bind phospholipids upon an elevation in the intracellular free Ca2+ concentration ([Ca2+]i) [].