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. 2021 Aug 19;46(1):fuab046. doi: 10.1093/femsre/fuab046

Figure 1.

Figure 1.

The processing and release of nascent peptide chains from stalled bacterial ribosomes in B. subtilis. The SmpB/tmRNA system tags the nascent peptide chain with a 15-residue-long peptide degron, while the RqcH/YabO system generates an alanine tail. Both C-terminal extensions target the resulting peptides for degradation by ClpXP.