Induction of uracil-DNA glycosylase and dUTP nucleotidohydrolase activity in herpes simplex virus-infected human cells.

Macromolecular synthesis in cells infected with Herpes simplex virus

Herpes simplex virus type 1 uracil-DNA glycosylase: isolation and selective inhibition by novel uracil derivatives.

We have purified Herpes simplex type 1 (HSV1) uracil-DNA glycosylase from the nuclei of HSV1-infected HeLa cells harvested 8 h post-infection, at which time the induction of the enzyme is a maximum. The enzyme has been shown to be distinct from the host enzyme, isolated from HeLa cells, by its lack of sensitivity to a monoclonal antibody to human uracil-DNA glycosylase. Furthermore, several ura...

Association between the herpes simplex virus-1 DNA polymerase and uracil DNA glycosylase.

Herpes simplex virus-1 (HSV-1) is a large dsDNA virus that encodes its own DNA replication machinery and other enzymes involved in DNA transactions. We recently reported that the HSV-1 DNA polymerase catalytic subunit (UL30) exhibits apurinic/apyrimidinic and 5'-deoxyribose phosphate lyase activities. Moreover, UL30, in conjunction with the viral uracil DNA glycosylase (UL2), cellular apurinic/...

Identification of the coding sequence for herpes simplex virus uracil-DNA glycosylase.

We have recently isolated a herpes simplex virus (HSV) type 2 (strain 333)-specific cDNA that encodes uracil-DNA glycosylase. This cDNA lies between 0.065 and 0.08 map units on the HSV genome. Within this region there are five overlapping transcripts which encompass three open reading frames. We have determined that the second open reading frame, UL-2, codes for glycosylase. In vitro transcript...

A kinetic analysis of substrate recognition by uracil-DNA glycosylase from herpes simplex virus type 1.

Uracil-DNA glycosylase (UDG) is responsible for the removal of uracil from DNA. It has previously been demonstrated that UDG exhibits some sequence dependence in its activity, although this has not been well characterised. This study has investigated the sequence-dependent activity of UDG from herpes simplex virus type-1 (HSV-1). A more detailed analysis has been possible by using both kinetic ...