CLSTN2 and ependymoma: To more broadly assess expression levels of the three CLSTNs across human MB samples in comparison to normal brain regions and the cerebellum, we analyzed CLSTN1, CLSTN2, and CLSTN3 mRNA expression across five publicly available MB datasets as well as an atypical teratoid rhabdoid tumor (ATRT) and an ependymoma dataset (Fig. 1B).