Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.

We provide evidence for a novel mechanism of transcriptional regulation in which the immediate-early (IE) transactivating protein of herpes simplex virus, Vmw65, is assembled into a specific DNA-binding complex together with a cellular octamer-binding factor (TRF). The assembly of Vmw65/TRF complex...

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Manylion Llyfryddiaeth
Prif Awduron: O'Hare, P, Goding, C, Haigh, A
Fformat: Journal article
Iaith:English
Cyhoeddwyd: 1988
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author O'Hare, P
Goding, C
Haigh, A
author_facet O'Hare, P
Goding, C
Haigh, A
author_sort O'Hare, P
collection OXFORD
description We provide evidence for a novel mechanism of transcriptional regulation in which the immediate-early (IE) transactivating protein of herpes simplex virus, Vmw65, is assembled into a specific DNA-binding complex together with a cellular octamer-binding factor (TRF). The assembly of Vmw65/TRF complex requires not only the core TRF recognition site, but also flanking sequences which are dispensable for TRF binding alone. We show from functional analyses that TRF binding by a motif is required but not sufficient to confer induction on a heterologous promoter, and it is the ability of the motif to allow TRF/Vmw65 complex assembly which correlates with functional activity. Thus, for the induction of HSV IE expression, Vmw65 forms a complex with TRF by recognition of the specific subset of appropriately flanked TRF binding sites present in each of the IE genes. This mechanism may provide a paradigm for the selective utilization of the same transcription factor in differential gene expression.
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spelling oxford-uuid:dea1e89f-e351-4bbd-ad6f-565842aed6c02022-03-27T09:33:40ZDirect combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dea1e89f-e351-4bbd-ad6f-565842aed6c0EnglishSymplectic Elements at Oxford1988O'Hare, PGoding, CHaigh, AWe provide evidence for a novel mechanism of transcriptional regulation in which the immediate-early (IE) transactivating protein of herpes simplex virus, Vmw65, is assembled into a specific DNA-binding complex together with a cellular octamer-binding factor (TRF). The assembly of Vmw65/TRF complex requires not only the core TRF recognition site, but also flanking sequences which are dispensable for TRF binding alone. We show from functional analyses that TRF binding by a motif is required but not sufficient to confer induction on a heterologous promoter, and it is the ability of the motif to allow TRF/Vmw65 complex assembly which correlates with functional activity. Thus, for the induction of HSV IE expression, Vmw65 forms a complex with TRF by recognition of the specific subset of appropriately flanked TRF binding sites present in each of the IE genes. This mechanism may provide a paradigm for the selective utilization of the same transcription factor in differential gene expression.
spellingShingle O'Hare, P
Goding, C
Haigh, A
Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title_full Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title_fullStr Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title_full_unstemmed Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title_short Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression.
title_sort direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer binding factor mediates specific induction of virus immediate early gene expression
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