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4:44
YouTube
Onkoview
The PI3K/AKT signalling pathway
The phoshatidylinositol-3 kinase (PI3K) can be activated by binding directly or via the protein IRS-1 to the activated receptor tyrosine kinase. Alternatively, PI3K can be activated by binding to the GTP-bound form of the membrane bound protein Ras. Active PI3K catalyzes the formation of membrane bound PIP3. The second messenger PIP3 activates ...
530K views
Feb 22, 2010
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