Ral GTPase-activating protein subunit alpha-1 is an enzyme that in humans is encoded by the RALGAPA1 gene. This protein binds to the RALGAPB protein to form a protein complex called "RalGAP1". This complex functions as an activator for the small GTPases RALA and RALB. RALGAPA1 is the catalytic subunit for RalGAP1.
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