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Northern Blot Analysis of Sepiapterin Reductase mRNA in Mammalian Cell Lines and Tissues

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Chemistry and Biology of Pteridines and Folates

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 338))

Abstract

Recent evidence has shown that H4biopterin is synthesized in cells which undergo cytokine-directed proliferation and do not use H4biopterin as a hydroxylation cofactor. H4biopterin, in turn, enhances the proliferation of erythroleukemic cells and modulates various aspects of the interleukin-2-induced clonal expansion of T cells.1 In these cells the activity of sepiapterin reductase (SR) is in the range of 100 pmol min-1 mg-1.Lectin Stimulation of resting T cells causes a slowly progressing increase, starting from levels below detection and a transient enhancement of SR activity is found after treatment of activated T cells by interferon-γ plus interleukin-2.1 The NK-like human cell line YT and the murine erythroleukemic cell line B8/3 lack any SR activity. The molecular basis of SR regulation has not been explained in any of these cases.

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© 1993 Springer Science+Business Media New York

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Maier, J., Schott, K., Werner, T., Bacher, A., Ziegler, I. (1993). Northern Blot Analysis of Sepiapterin Reductase mRNA in Mammalian Cell Lines and Tissues. In: Ayling, J.E., Nair, M.G., Baugh, C.M. (eds) Chemistry and Biology of Pteridines and Folates. Advances in Experimental Medicine and Biology, vol 338. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2960-6_39

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  • DOI: https://doi.org/10.1007/978-1-4615-2960-6_39

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-6287-6

  • Online ISBN: 978-1-4615-2960-6

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