Supplemental Table 1: Known genetic mutations of genes commonly mutated in mCRPC in cell lines used in phosphoproteome analysis Supplemental Table 2: Phospho-Serine/Threonine proteome of Prostate Cancer Adenocarcinoma and Aggressive Variant Prostate Cancer Cell Lines Supplemental Table 3: Phospho-Tyrosine proteome of Prostate Cancer Adenocarcinoma and Aggressive Variant Prostate Cancer Cell Lines Supplemental Table 4: Kinase Substrate Enrichment Analysis results from phospho-serine/threonine proteome dataset Supplemental Table 5: Kinase Substrate Enrichment Analysis results from phospho-tyrosine proteome dataset Supplemental Table 6: Phospho-Serine/Threonine proteome of Adenocarcinoma or Small cell/Mixed phenotype mCRPC patient samples Supplemental Table 7. Spearman's Correlation Between the Dependency Ranks of RET and Other Genes in Prostate Cancer Cell Lines Supplemental Table 8. RET Dependency Scores of Cancer Cell Lines