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HEp-2 cell- and herpes simplex virus type 1- induced deoxythymidine kinases: inhibition by derivatives of 5-trifluoromethyl-2'-deoxyuridine. 1978

B L Wigdahl, and J R Parkhurst

5-Trifluoromethyl-2'-deoxyuridine (F(3)Thd), its free base and nucleotide triphosphate derivative, along with the nucleotide monophosphate and nucleotide triphosphate of deoxythymidine (dThd), were investigated as inhibitors of HEp-2 cell deoxythymidine kinase (dTK) and herpes simplex virus type 1 (HSV-1)-induced dTK. 5-Trifluoromethyluracil did not inhibit cellular or viral dTK. F(3)dThd competitively inhibited phosphorylation of dThd by both the HEp-2 cell- and the HSV-1-induced dTK. The K(mapp) for dThd and the K(Iapp) for the alternate substrate, F(3)dThd, were 3.5 and 22.5 muM for the HEp-2 cell dTK and 63.5 and 71.0 muM for the HSV-1-induced dTK. dThd-5'-PPP at 10 muM inhibited HEp-2 cell- and HSV-1-induced dTK by 94 and 22%, respectively. In comparison, 10 muM F(3)dThD-5'-PPP inhibited HEp-2 cell- and HSV-1-induced dTK 95 and 15%, respectively. These data indicate that F(3)dThd-5'-PPP may mimic dThd-5'-PPP feedback regulation of cellular and viral dTK.

UI MeSH Term Description Entries
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D013936 Thymidine A nucleoside in which THYMINE is linked to DEOXYRIBOSE. 2'-Deoxythymidine,Deoxythymidine,2' Deoxythymidine
D013937 Thymidine Kinase An enzyme that catalyzes the conversion of ATP and thymidine to ADP and thymidine 5'-phosphate. Deoxyuridine can also act as an acceptor and dGTP as a donor. (From Enzyme Nomenclature, 1992) EC 2.7.1.21. Deoxythymidine Kinase,Deoxypyrimidine Kinase,Kinase, Deoxypyrimidine,Kinase, Deoxythymidine,Kinase, Thymidine
D014271 Trifluridine An antiviral derivative of THYMIDINE used mainly in the treatment of primary keratoconjunctivitis and recurrent epithelial keratitis due to HERPES SIMPLEX virus. (From Martindale, The Extra Pharmacopoeia, 30th ed, p557) Trifluorothymidine,2'-deoxy-5-(trifluoromethyl)uridine,5-Trifluoromethyl-2'-deoxyuridine,TFT Ophtiole,Triflumann,Trifluoridine,Viromidin,Virophta,Viroptic,5 Trifluoromethyl 2' deoxyuridine
D018139 Simplexvirus A genus of the family HERPESVIRIDAE, subfamily ALPHAHERPESVIRINAE, consisting of herpes simplex-like viruses. The type species is HERPESVIRUS 1, HUMAN. Herpes Simplex Virus,Herpesvirus 1, Saimiriine,Herpesvirus 1, Saimirine,Herpesvirus 16, Cercopithecine,Marmoset Virus,Cercopithecine Herpesvirus 16,Herpes Labialis Virus,Herpes-T Virus,Herpesvirus 1 (alpha), Saimirine,Herpesvirus Hominis,Herpesvirus Papio 2,Herpesvirus Platyrhinae,Marmoset Herpesvirus,Saimiriine Herpesvirus 1,Herpes Labialis Viruses,Herpes Simplex Viruses,Herpes T Virus,Herpes-T Viruses,Herpesvirus Homini,Herpesvirus, Marmoset,Herpesviruses, Marmoset,Homini, Herpesvirus,Hominis, Herpesvirus,Labialis Virus, Herpes,Labialis Viruses, Herpes,Marmoset Herpesviruses,Marmoset Viruses,Platyrhinae, Herpesvirus,Saimirine Herpesvirus 1,Simplexviruses,Virus, Herpes Labialis,Viruses, Herpes Labialis

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