Article
20S proteasomal degradation of ornithine decarboxylase is regulated by NQO1.
Molecular cell - 4 Mar 2005
Asher Gad, Bercovich Zippi, Tsvetkov Peter, Shaul Yosef, Kahana Chaim
Abstract excerpt
Ornithine decarboxylase (ODC), a key enzyme in the biosynthesis of polyamines, is a very labile protein. ODC is a homodimeric enzyme that undergoes ubiquitin-independent proteasomal degradation via direct interaction with antizyme, a polyamine-induced protein. Binding of antizyme promotes the dissociation of ODC homodimers and marks ODC for degradation by the 26S proteasomes. We describe here an alternative...
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