A 269-amino-acid segment with a pseudo-leucine zipper and a helix-turn-helix motif codes for the sequence-specific DNA-binding domain of herpes simplex virus type 1 origin-binding protein.

Abstract excerpt

The UL9 gene of herpes simplex virus (HSV) codes for a DNA-binding protein (OBP) that interacts sequence specifically with the origin of replication. This protein is essential for HSV DNA replication in cultured cells. The UL9 gene was cloned into a plasmid vector downstream of the SP6 RNA polymerase promoter. By using in vitro transcription and translation systems, a full-length OBP was synthesized. This...

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