TY - JOUR A1 - Hayne, Cassandra K. A1 - Sekulovski, Samoil A1 - Hurtig, Jennifer E. A1 - Stanley, Robin E. A1 - Trowitzsch, Simon A1 - Hoof, Ambro van T1 - New insights into RNA processing by the eukaryotic tRNA splicing endonuclease T2 - Journal of biological chemistry N2 - Through its role in intron cleavage, tRNA splicing endonuclease (TSEN) plays a critical function in the maturation of intron-containing pre-tRNAs. The catalytic mechanism and core requirement for this process is conserved between archaea and eukaryotes, but for decades, it has been known that eukaryotic TSENs have evolved additional modes of RNA recognition, which have remained poorly understood. Recent research identified new roles for eukaryotic TSEN, including processing or degradation of additional RNA substrates, and determined the first structures of pre-tRNA-bound human TSEN complexes. These recent discoveries have changed our understanding of how the eukaryotic TSEN targets and recognizes substrates. Here, we review these recent discoveries, their implications, and the new questions raised by these findings. KW - tRNA splicing KW - RNA KW - protein structure KW - RNA processing KW - RNA degradation KW - TSEN Y1 - 2023 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/77108 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-771086 SN - 0021-9258 VL - 299.2023 IS - 9 SP - 105138 EP - 105138 PB - American Society for Biochemistry and Molecular Biology Publications CY - Bethesda, Md ER -