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Activation of RAC1 by SOS
Stable Identifier
R-HSA-428535
Type
Reaction [transition]
Species
Homo sapiens
Compartment
cytosol
,
plasma membrane
ReviewStatus
5/5
Locations in the PathwayBrowser
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Developmental Biology (Homo sapiens)
Nervous system development (Homo sapiens)
Axon guidance (Homo sapiens)
Signaling by ROBO receptors (Homo sapiens)
Activation of RAC1 (Homo sapiens)
Activation of RAC1 by SOS (Homo sapiens)
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The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout
SOS (SOS1 or SOS2), bound to Dock orholog NCK (NCK1 or NCK2), has a Rac GEF activity and activates RAC1. Son of sevenless (SOS) is a dual specificity guanine nucleotide exchange factor (GEF) that regulates both Ras and Rho family GTPases. The Ras and Rac-GEF activities of Sos can be uncoupled during ROBO-mediated axon repulsion; SOS axon guidance function depends on its Rac-GEF activity, but not its Ras-GEF activity (Yang and Bashaw 2006).
Participants
Input
GTP [cytosol]
RAC1:GDP [plasma membrane]
(Homo sapiens)
Output
GDP [cytosol]
RAC1:GTP [plasma membrane]
(Homo sapiens)
Participates
as an event of
Activation of RAC1 (Homo sapiens)
Catalyst Activity
guanyl-nucleotide exchange factor activity of SLIT2:ROBO1:NCK:SOS [plasma membrane]
Physical Entity
SLIT2:ROBO1:NCK:SOS [plasma membrane]
(Homo sapiens)
Activity
guanyl-nucleotide exchange factor activity (GO:0005085)
Inferred From
Activation of Rac by Sos (Drosophila melanogaster)
Authored
Garapati, P V (2008-09-05)
Reviewed
Jaworski, A (2017-07-31)
Kidd, T (2009-08-18)
Created
Garapati, P V (2009-07-06)
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