Regulation of the human spermidine synthase mRNA translation by its 5'-untranslated region.
An increased mRNA content of spermidine synthase was found in phytohemagglutinin stimulated human peripheral lymphocytes and in cultured human myeloma (Sultan) cells stimulated to grow by change of the culture medium. The many-fold increase in the amount of the message was accompanied by stimulation of the enzyme activity in activated lymphocytes, but not in stimulated myeloma cells. In the present study the effect of the 5'-untranslated region of spermidine synthase mRNA on the post-transcriptional control of its expression was studied both in vitro in rabbit reticulocyte system and in cultured mammalian cells. The results show that the GC-rich 5'-untranslated region of spermidine synthase mRNA has an inhibitory effect on its translation.[1]References
- Regulation of the human spermidine synthase mRNA translation by its 5'-untranslated region. Kauppinen, L. FEBS Lett. (1995) [Pubmed]
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