Which of the following statements regarding the ubiquitin-proteosome pathway is false?
A)This pathway is used to regulate expression of a number of cell surface receptors.
B)When proteins are destroyed by the proteosome,the ubiquitin moiety is not destroyed,but rather cleaved off and reused.
C)Ubiquitin ligase adds ubiquitin residues to targeted proteins in a stepwise fashion.
D)Ubiquitination of a targeted protein requires only one molecule of ATP.

Question

Quizplus · Accepted Answer

Ubiquitination of a targeted protein requires multiple molecules of ATP, not just one, as ATP is needed for the activation of ubiquitin and the conjugation process.

Which of the Following Statements Regarding the Ubiquitin-Proteosome Pathway Is