Ribonuclease J 2

UniProtKB accession:  Q2FZ19

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UniProtKB description:  An RNase that has 5'-3' exonuclease and endonuclease activity, with the exonuclease activity probably being most important in vivo. Involved in maturation of 16S rRNA, rnpB (the RNA component of RNase P) maturation and degradation, and mRNA maturation and/or decay. This subunit probably plays a structural rather than enzymatic role as mutation of its putative active site gives no phenotype, and its deletion is partially complemented by inactive RNase J1.