A negative feedback loop attenuates EGF-induced morphological changes.

Abstract excerpt

Activation of the EGF receptor tyrosine kinase by ligand indirectly activates a series of other cellular enzymes, including protein kinase C. To test the hypothesis that phosphorylation of the EGF receptor by protein kinase C provides an intracellular negative feedback loop to attenuate EGF receptor signaling, we used scanning EM to follow the characteristic EGF-induced retraction of lamellipodia and concomitant...

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