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This gene encodes a member of the GAP1 family of GTPase-activating proteins that suppresses the Ras/mitogen-activated protein kinase pathway in response to Ca(2+). Stimuli that increase intracellular Ca(2+) levels result in the translocation of this protein to the plasma membrane, where it activates Ras GTPase activity. Consequently, Ras is converted from the active GTP-bound state to the inactive GDP-bound state and no longer activates downstream pathways that regulate gene expression, cell growth, and differentiation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
GO:0005096 [GTPase activator activity] GO:0005515 [protein binding] GO:0005737 [cytoplasm] GO:0007165 [signal transduction] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0035556 [intracellular signal transduction] GO:0043087 [regulation of GTPase activity] GO:0043547 [positive regulation of GTPase activity] GO:0046580 [negative regulation of Ras protein signal transduction]
GO:0005096 [GTPase activator activity] GO:0005515 [protein binding] GO:0005737 [cytoplasm] GO:0007165 [signal transduction] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0035556 [intracellular signal transduction] GO:0043087 [regulation of GTPase activity] GO:0043547 [positive regulation of GTPase activity] GO:0046580 [negative regulation of Ras protein signal transduction]
E5RK78 [Direct mapping] Ras GTPase-activating protein 4
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Predicted intracellular proteins RAS pathway related proteins
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GO:0005515 [protein binding] GO:0005737 [cytoplasm] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0046580 [negative regulation of Ras protein signal transduction]
E5RID2 [Direct mapping] Ras GTPase-activating protein 4
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Predicted intracellular proteins RAS pathway related proteins
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GO:0005737 [cytoplasm] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0046580 [negative regulation of Ras protein signal transduction]
E5RGQ8 [Direct mapping] Ras GTPase-activating protein 4
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Predicted intracellular proteins RAS pathway related proteins
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GO:0005515 [protein binding] GO:0005737 [cytoplasm] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0046580 [negative regulation of Ras protein signal transduction]
GO:0005737 [cytoplasm] GO:0007165 [signal transduction] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0043087 [regulation of GTPase activity] GO:0046580 [negative regulation of Ras protein signal transduction]
GO:0005737 [cytoplasm] GO:0031235 [intrinsic component of the cytoplasmic side of the plasma membrane] GO:0046580 [negative regulation of Ras protein signal transduction]