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Publication : Role of ornithine decarboxylase antizyme inhibitor in vivo.

First Author  Tang H Year  2009
Journal  Genes Cells Volume  14
Issue  1 Pages  79-87
PubMed ID  19077035 Mgi Jnum  J:146570
Mgi Id  MGI:3837920 Doi  10.1111/j.1365-2443.2008.01249.x
Citation  Tang H, et al. (2009) Role of ornithine decarboxylase antizyme inhibitor in vivo. Genes Cells 14(1):79-87
abstractText  Ornithine decarboxylase (ODC) antizyme inhibitor (AZI) has been shown to regulate ODC activity in cell cultures. However, its biological functions in an organism remain unknown. An embryonic stem (ES) cell clone was established, in which the Azin1 gene was disrupted by the gene trap technique. To identify the function of Azin1 gene in vivo, a mutant mouse line was generated using these trapped ES cells. Homozygous mutant mice died at P0 with abnormal liver morphology. Further analysis indicated that the deletion of Azin1 in homozygous mice resulted in the degradation of ODC, and reduced the biosynthesis of putrescine and spermidine. Our results thus show that AZI plays an important role in regulating the levels of ODC, putrescine and spermidine in mice, and is essential for the survival of mice.
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