After TmRNA Releases an MRNA and Aberrant Polypeptide from a Stuck

question 29

Multiple Choice

After tmRNA releases an mRNA and aberrant polypeptide from a stuck ribosome,

• A) clpX tags the peptide for destruction.
• B) sspB tags the peptide for destruction.
• C) tmRNA then destroys the peptide.
• D) tmRNA ubiquitinates the peptide.
• E) sspB recognizes a proteolysis tag and delivers the peptide to clpX for degradation.

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