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  • Title: Differential and selective inhibition of cellular and herpes simplex virus DNA synthesis by arabinofuranosyladenine.
    Author: Falke D, Ronge K, Arendes J, Müller WE.
    Journal: Biochim Biophys Acta; 1979 Jun 20; 563(1):36-45. PubMed ID: 227462.
    Abstract:
    The influence of 9-beta-D-arabinofuranosyladenine (beta araAdo) and of its anomer 9-alpha-D-arabinofuranosyladenine (alpha araAdo) was studied in non-infected cells and cells infected with herpes simplex virus type 1 (HSV-1) and HSV type 2 (HSV-2). alpha AraAdo is a strong inhibitor of proliferation of non-infected cells. Multiplication of HSV-1 and HSV-2 is not affected at all by alpha araAdo, while their growth is strongly inhibited by beta araAdo. alpha AraAdo exerts no effect on the incorporation of dThd into HSV DNA, but blocks the incorporation into host cell DNA. Its anomer, beta araAdo, affects the incorporation rate of both the viral DNA system and the host cell DNA system (the latter one to a lesser extent). alpha AraAMP is incorporated into newly synthesized cellular DNA but not into HSV DNA. Enzymic studies relevant that alpha araATP has no effect on the HSV DNA polymerase system but a high inhibitory potency in the host cell DNA polymerase alpha system. The anomeric form, beta araATP, is a sensitive inhibitor of HSV DNA polymerase while the cellular DNA polymerases alpha and beta are more refractory.
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