Herpes simplex virus thymidine kinase gene is stably maintained and expressed in cells transformed by protoplast fusion.

Restriction Enzyme Analysis of Thymidine Kinase Gene in Four Iranian Isolates of Herpes Simplex Virus Type 1

PCR detection of thymidine kinase gen of latent herpes simplex Virus type 1 in mice trigeminal ganglia

  Herpes simplex virus type 1 establishes a latent infection in the peripheral nervous system following primary infection. During latent infection, virus genome exhibit limited transcription, with the HSV LATs consistently detected in latency infected ganaglia. Following ocular infection viral latency develops in the trigeminal ganglia. In this study PCR has been used for detection of HSV-1 nuc...

The Effects and Pharmacokinetics of Acyclovir in Neonates

    Acyclovir (9-[2-hydroxyethoxymethyl] guanine) is an acyclic nucleoside analogue of guanosine which is a potent and selective antiviral agent. Acycloviris converted to the monophosphate by thymidine kinase the virus-specific form of this enzyme and is subsequently converted to the triphosphate by the host cell kinase. Acyclovir triphosphate inhibits viral DNA-polymerase terminating the chain...

Phenotypic switching in cells transformed with the herpes simplex virus thymidine kinase gene.

Biochemical transformation of Ltk- cells with the herpes simplex virus thymidine kinase (tk) gene resulted in numerous TK+ colonies that survived selection in hypoxanthine-aminopterin-thymidine medium. Many of these TK+ cell lines switched phenotypes and reverted to the TK- state. In this report, we describe the biological and biochemical characteristics of three TK- revertant lines. One (K1B5)...

Ultraviolet-Irradiated Herpes Simplex Virus

L cells lacking thymidine kinase (TK) activity (Ltkcells) have been stably transformed to a TK-positive phenotype by infection with ultraviolet-irradiated herpes simplex virus (HSV-UV). The highest frequency of the Ltkto Ltk+ transformation observed in these experiments was approximately 10-3, whereas no measurable transformation was observed (less than 10-8) in the absence of HSV-UV infection....