Ornithine decarboxylase antizyme 2 (OAZ2)

Ornithine decarboxylase (ODC) antizyme protein that negatively regulates ODC activity and intracellular polyamine biosynthesis and uptake in response to increased intracellular polyamine levels. Binds to ODC monomers, inhibiting the assembly of the operational ODC homodimers.

Does not target the ODC monomers for degradation, which allows a protein synthesis-independent recovery of ODC activity (PubMed:17900240). Involved in the translocation of AZIN2 from ER-Golgi intermediate compartment (ERGIC) to the cytosol (By similarity).