title: The herpes simplex virus amplicon: analyses of cis-acting replication functions.
abstract: Previous studies have shown that defective virus vectors (amplicons) derived from herpes simplex viruses could be efficiently propagated in virus stocks in the presence of trans-acting helper virus functions. The present study established that two separate cis-acting functions--a DNA replication origin and a cleavage/packaging signal--are required for amplicon propagation. Using deleted derivatives of cloned amplicons, we mapped one of the viral DNA replication origins (ori-2 or oriL) at coordinate 0.422 of the standard HSV-1 genome and at an equivalent position within the HSV-2 genome.
authors.forename: R R
authors.initials: RR
authors.lastname: Spaete
authors.forename: N
authors.initials: N
authors.lastname: Frenkel
mesh_terms: D001483:Base Sequence; D004261:DNA Replication; D004262:DNA Restriction Enzymes / Q000378:metabolism; D004279:DNA, Viral / Q000096:biosynthesis*; D012091:Repetitive Sequences, Nucleic Acid; D018139:Simplexvirus / Q000235:genetics*
chemical_list: D004279:DNA, Viral; D004262:DNA Restriction Enzymes