TFE3 and alveolar soft part sarcoma: An ASPSCR1–TFE3 fusion protein due to an unbalanced translocation der(17) t(X;17) has been associated with alveolar soft-part sarcoma (ASPS), which resulted in unregulated transcription of TFE3 and TFE3-regulated genes and a truncated allele of ASPSCR1 with loss of function [26].