RAB42 and bladder transitional cell carcinoma: Additionally, RAB42 expression was observed to be positively related to MSI in BLCA, COAD and Sarcoma (SARC), while negatively related to MSI in HNSC, LUSC, skin cutaneous melanoma (SKCM), STAD and testicular germ cell tumors (TGCT) (Figure S6A).