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OAZ3

Gene
Oaz3
Protein
Ornithine decarboxylase antizyme 3
Organism
Mus musculus
Length
243 amino acids
Function
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 functional ODC homodimers. Does not target the ODC monomers for degradation, which allows a protein synthesis-independent restoration of ODC activity (PubMed:16916800, PubMed:18508777, PubMed:18973822). Stabilizes AZIN2 by interfering with its ubiquitination (PubMed:18062773). Involved in the translocation of AZNI2 from ER-Golgi intermediate compartment (ERGIC) to the cytosol (PubMed:19449338). Probably plays a key role in spermatogenesis by regulating the intracellular concentration of polyamines in haploid germ cells (PubMed:24967154).
Similarity
Belongs to the ODC antizyme family.
Mass
28.228 kDa
Sequence
MPCNRSRPSLYSLSYIKRGKTRNYLYPFWSPFAYYLYCYKYRITLREKMLPCCYKSITYKEQEDLTLRPHCCLPCSCLPCSCLQCSESLGGLQVGRSTAQEKDHSQLKELYSAGNLTVLSTDPLLHQDPVQLDFHFRLTPHSSAHWHGLLCDHRLFLDIPYQALDQGNRESLTATLEYVEEKTNVDSVFVNFQIDRKDRGALLRAFSYMGFEVVRPDHPALPPWDNVIFMVYPLERDLGHPGQ

Gene
Oaz3
Protein
Ornithine decarboxylase antizyme 3
Organism
Rattus norvegicus
Length
243 amino acids
Function
Isoform 2: Does not possess antizyme activity. Modulates PPP1CB activity through its interaction with PPP1R16A.
Similarity
Belongs to the ODC antizyme family.
Mass
28.185 kDa
Sequence
MPCTRSRPSLYSLSYIKRGKTRNCLYPFWSPYAYYLYCYKYRITLREKMLPCCYRSITYKEQEDLTLRPHCCLPCSCLPYSCLPCSESLEGLQVGRSTAQEKDHSQLKELYSAGNLTVLSADPLLHQDPVQLDFHFRLTPHSSAHWHGLLCDHQLFLDIPFQALEQGNRESLTATLEYVEEKTNVDSVFVNFQSNHKDRGALLRAFSYMGFEVVRPDHPALPPWDNVIFMVYPLERDLGQPGQ

Gene
OAZ3
Protein
Ornithine decarboxylase antizyme 3
Organism
Homo sapiens
Length
235 amino acids
Function
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 functional ODC homodimers. Does not target the ODC monomers for degradation, which allows a protein synthesis-independent restoration of ODC activity (PubMed:17900240). Stabilizes AZIN2 by interfering with its ubiquitination. Involved in the translocation of AZNI2 from ER-Golgi intermediate compartment (ERGIC) to the cytosol. Probably plays a key role in spermatogenesis by regulating the intracellular concentration of polyamines in haploid germ cells (By similarity).
Similarity
Belongs to the ODC antizyme family.
Mass
27.413 kDa
Sequence
MPCKRCRPSVYSLSYIKRGKTRNYLYPIWSPYAYYLYCYKYRITLREKMLPRCYKSITYKEEEDLTLQPRSCLQCSESLVGLQEGKSTEQGNHDQLKELYSAGNLTVLATDPLLHQDPVQLDFHFRLTSQTSAHWHGLLCDRRLFLDIPYQALDQGNRESLTATLEYVEEKTNVDSVFVNFQNDRNDRGALLRAFSYMGFEVVRPDHPALPPLDNVIFMVYPLERDVGHLPSEPP