Fig. 1: tsRNA classification and modification.
From: Emerging roles of tRNA-derived small RNAs in cancer biology

tsRNAs are generated from mature tRNAs and pre-tRNAs. They have been classified into more than six types depending on the cleavage site. Each type of tsRNA has a different function and biogenesis mechanism, but the details are unclear. The important modifications and modifying enzymes are shown.