IndraLab
Statements
SOS1 is inactive.
18
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"ERK activation was sufficient for the SOS1 phosphorylation and resulting inhibition of EGF-induced Ras activation. This result also showed that SOS1 could be phosphorylated by ERK in the absence of association with EGFR at the plasma membrane, which is a phosphotyrosine-dependent process."
"ERK activation was sufficient for the SOS1 phosphorylation and resulting inhibition of EGF-induced Ras activation. This result also showed that SOS1 could be phosphorylated by ERK in the absence of association with EGFR at the plasma membrane, which is a phosphotyrosine-dependent process."
"ERK activation was sufficient for the SOS1 phosphorylation and resulting inhibition of EGF-induced Ras activation. This result also showed that SOS1 could be phosphorylated by ERK in the absence of association with EGFR at the plasma membrane, which is a phosphotyrosine-dependent process."
"Taken together, these results establish mammalian sprouty proteins as important negative regulators of growth factor signaling and suggest that sprouty proteins act downstream of the grb2.Sos Complex to selectively uncouple growth factor signals from ras activation and the map kinase pathway."
SOS1 is active.
1
5
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"Our observations characterizing the interaction between CSN3 and the Sos1 HD suggest that this domain not only functions regulating Sos-GEF autoinhibition but is also involved in other functional roles, such as the control of Sos protein stability and homeostasis by modulating the degradation and intracellular levels of Sos1."