Fig. 5: Schematic representation of copper signaling and CTR1 repression.

(top) Proposed mechanism of copper-stimulated EGFR activation, with downstream CREB TF activity and transcriptional repression of CTR1. (bottom) Decreased Cu levels result in downregulation of the pathway shown on the top. Figure 5 created with BioRender.com released under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International license.