Ras p21 protein activator 2
Ras p21 protein activator 2 (RasGAP), also known as RASA2, is a protein that in humans is encoded by the RASA2 gene. This protein is part of the GTPase-activating protein (GAP) family, which function as modulators of the Ras superfamily of proteins.
Function[edit | edit source]
Ras p21 protein activator 2 is a GTPase activating protein (GAP) for the Ras protein. It converts active Ras-GTP to the inactive form Ras-GDP. This protein is crucial in cellular signaling pathways, controlling cell growth, differentiation, and survival.
Structure[edit | edit source]
The RASA2 protein is composed of several domains, including a pleckstrin homology domain (PH domain), a C2 domain, and a GAP domain. The PH and C2 domains are involved in membrane targeting, while the GAP domain is responsible for the GTPase activating function.
Clinical significance[edit | edit source]
Mutations in the RASA2 gene have been associated with various types of cancer, including lung cancer, breast cancer, and melanoma. These mutations often result in a loss of function of the RASA2 protein, leading to uncontrolled cell growth and proliferation.
See also[edit | edit source]
References[edit | edit source]
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