Interestingly, this cluster also has an elevated expression of MYH3, an embryonic form of myosin heavy chain, several cardiac cytoskeletal genes (ACTC1, TNNT2), and SERPINB9, which has previously been shown to protect tumor cells from granzyme B secreted by cytotoxic T lymphocytes [19]. The gene discussed is GZMB; the disease is neoplasm.