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. 2021 Oct 29;7(4):69. doi: 10.3390/ncrna7040069

Figure 4.

Figure 4

The proteins coupled to the Mtb degradosome are shown. (A) RNase J is an endoribonuclease and a 5′–3′ exoribonuclease. (B) RNase E is an endoribonuclease that cleaves ssRNA at A/U-rich sites after recognizing the 5′ phosphate in proximity. (C) PNPase is a 3′–5′ exoribonuclease, which is the only RNase implicated in the processing of an sRNA, Ms1.