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Herpes simplex virus type 1 that exhibits herpes simplex virus type 2 sensitivity to
J J Docherty1, A T Dobson, J J Trimble
1Department of Microbiology/Immunology, Northeastern Ohio Universities College of Medicine, Rootstown 44272.
Abstract:
A clinical isolate, designated 145, of herpes simplex virus (HSV) had type 1 characteristics as determined by monoclonal antibody immunofluorescence, heat stability of viral thymidine kinase (TK), BamHI restriction endonuclease pattern, and absence of the HSV-2-specific 38-kD protein. However, instead of being sensitive to E-5-(2-bromovinyl)-2'-deoxyuridine (BVDU) like HSV-1, isolate 145 displayed a resistance pattern like HSV-2 to the drug as determined by viral replication and viral DNA synthesis. Because BVDU is activated by viral TK phosphorylation, we cloned the TK-containing DNA region from isolate 145 and compared it by restriction mapping using several endonucleases to similar regions of HSV-1 and HSV-2. In each instance, the patterns for HSV-1 and isolate 145 were identical to each other, but distinct from the patterns for the corresponding region of HSV-2, suggesting that the genome TK region of isolate 145 was HSV-1-like.