EGFR and cancer: Reverse Phase Protein Array (RPPA) data of the “The Cancer Proteome Atlas” (TCPA, https://tcpaportal.org/tcpa/, [36]) was assessed in order to explore the EGFR functional proteomics landscape of all renal cell cancer subtypes evaluated in this portal: These are “Kidney Chromophobe” (KICH, n = 63), “Kidney renal clear cell carcinoma” (KIRC, n = 445), and “Kidney renal papillary cell carcinoma” (KIRP, n = 208).