DNA genome of spontaneously occurring deletion mutants of herpes simplex virus type 1 lacking one copy of the inverted repeat sequences of the L component

DNA genome of spontaneously occurring deletion mutants of herpes simplex virus type 1 lacking one... Three non-engineered, spontaneously occurring herpes simplex virus type 1 (HSV-1) mutants (GN52, GN82, and GN91) that have a deletion of approximately 10 kbp (including a part of the UL55 gene, the entire UL56 gene, and one copy of the inverted repeat sequences of the L component (R L )) and retain the a sequence were isolated. The yields of the mutants at 24 h post-adsorption in cultured cells were comparable to that of an HSV-1 isolate (GN28) without the deletion. Although the three mutants lost one copy of R L , the L component in replicative intermediates of the mutants inverted. DNA replicative intermediates of the three mutants were flanked by the L component, like those of GN28. The three mutants were generated through recombination involving regions around the authentic cleavage site in the a sequence, suggesting an important role of the a sequence in the diversification of herpesviruses. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

DNA genome of spontaneously occurring deletion mutants of herpes simplex virus type 1 lacking one copy of the inverted repeat sequences of the L component

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Publisher
Springer Vienna
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-011-0983-2
Publisher site
See Article on Publisher Site

Abstract

Three non-engineered, spontaneously occurring herpes simplex virus type 1 (HSV-1) mutants (GN52, GN82, and GN91) that have a deletion of approximately 10 kbp (including a part of the UL55 gene, the entire UL56 gene, and one copy of the inverted repeat sequences of the L component (R L )) and retain the a sequence were isolated. The yields of the mutants at 24 h post-adsorption in cultured cells were comparable to that of an HSV-1 isolate (GN28) without the deletion. Although the three mutants lost one copy of R L , the L component in replicative intermediates of the mutants inverted. DNA replicative intermediates of the three mutants were flanked by the L component, like those of GN28. The three mutants were generated through recombination involving regions around the authentic cleavage site in the a sequence, suggesting an important role of the a sequence in the diversification of herpesviruses.

Journal

Archives of VirologySpringer Journals

Published: Aug 1, 2011

References

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