Ribonuclease Y

UniProtKB accession:  O31774

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UniProtKB description:  Endoribonuclease that initiates mRNA decay. Initiates the decay of all SAM-dependent riboswitches, such as yitJ riboswitch. Involved in processing of the gapA operon mRNA, it cleaves between cggR and gapA (PubMed:19193632). Is also the decay-initiating endonuclease for rpsO mRNA. Involved in degradation of type I toxin-antitoxin system bsrG/SR4 RNAs and a minor role in degradation of type I toxin-antitoxin system bsrE/SR5 degradation (PubMed:22229825, PubMed:26940229).