Evaluation of the protein expression levels of the myosin heavy chain MYH11 in the RPPA dataset from the independent TCGA sarcoma cohort (DDLPS n = 54, LMS n = 81, SS n = 6, UPS n = 49) confirms that this protein is significantly upregulated in LMS, providing independent validation of our SWATH-MS results (Fig. S2, Table S4) [3]. The gene discussed is MYH11; the disease is sarcoma.