Pre-Lecture Question
Which of the following describes the action of the 26S proteasome on ubiquitin-tagged proteins?
Both ubiquitin and its linked protein are degraded to amino acids, in an ATP-dependent fashion.
Both ubiquitin and its linked protein are degraded to peptides of about residues, in an ATP-dependent fashion.
Both ubiquitin and its linked protein are degraded to amino acids, in an ATP-independent fashion.
The linked protein, but not ubiquitin, is degraded to peptides of about residues in an ATP-dependent fashion.