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Involvement of PIN‐like domain nucleases in tRNA processing and translation regulation
Author(s) -
Gobert Anthony,
Bruggeman Mathieu,
Giegé Philippe
Publication year - 2019
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1002/iub.2062
Subject(s) - rnase p , transfer rna , ribonucleoprotein , translation (biology) , biology , rna , rnase mrp , nuclease , enzyme , rnase h , ribonuclease , biochemistry , computational biology , genetics , microbiology and biotechnology , messenger rna , gene
Transfer RNAs require essential maturation steps to become functional. Among them, RNase P removes 5′ leader sequences of pre‐tRNAs. Although RNase P was long thought to occur universally as ribonucleoproteins, different types of protein‐only RNase P enzymes were discovered in both eukaryotes and prokaryotes. Interestingly, all these enzymes belong to the super‐group of PilT N‐terminal‐like nucleases (PIN)‐like ribonucleases. This wide family of enzymes can be subdivided into major subgroups. Here, we review recent studies at both functional and mechanistic levels on three PIN‐like ribonucleases groups containing enzymes connected to tRNA maturation and/or translation regulation. The evolutive distribution of these proteins containing PIN‐like domains as well as their organization and fusion with various functional domains is discussed and put in perspective with the diversity of functions they acquired during evolution, for the maturation and homeostasis of tRNA and a wider array of RNA substrates. © 2019 IUBMB Life, 2019 © 2019 IUBMB Life, 71(8):1117–1125, 2019