title: Tandem repeated DNA in an intergenic region of herpes simplex virus type 1 (Patton).
abstract: When the entire US region of HSV-1 (Patton) was cloned as an EcoRI fragment in bacteriophage lambda gtWES, the BamHI B6B5 fragment was observed to vary in size among independent isolates [Umene and Enquist, Gene 13 (1981) 251-268]. This fragment polymorphism also occurred in DNA of HSV-1 single plaque isolates. We report here that this heterogeneity is due to variation in copy number of a 15-bp tandem repeat of sequence 5'-CCACTCCCCACCCAC-3', which apparently lies in an intergenic region of the HSV-1 DNA.
mesh_terms: D001483:Base Sequence; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D004279:DNA, Viral / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D018139:Simplexvirus / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D004274:DNA, Recombinant; D004279:DNA, Viral; D004262:DNA Restriction Enzymes