ArticleJournal of virology2020
Kaposi's Sarcoma-Associated Herpesvirus ORF66 Is Essential for Late Gene Expression and Virus Production via Interaction with ORF34.
Article in Journal of virology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 22 citations in OpenAlex.
- Conserved cysteine residues in Kaposi's sarcoma herpesvirus ORF34 are necessary for viral production and viral pre-initiation complex formation.Journal of virology · 2024Article
- Conserved cysteine residues in Kaposi's sarcoma herpesvirus ORF34 are necessary for viral production and viral pre-initiation complex formation.Journal of virology · 2024Article
- Conserved cysteine residues in Kaposi's sarcoma herpesvirus ORF34 are necessary for viral production and viral pre-initiation complex formation.bioRxiv : the preprint server for biology · 2024Article
- Better late than never: A unique strategy for late gene transcription in the beta- and gammaherpesviruses.Seminars in cell & developmental biology · 2023Review
- Kaposi's Sarcoma-Associated Herpesvirus ORF67.5 Functions as a Component of the Terminase Complex.Journal of virology · 2023Article
- Kaposi's Sarcoma-Associated Herpesvirus ORF21 Enhances the Phosphorylation of MEK and the Infectivity of Progeny Virus.International journal of molecular sciences · 2023Article
- UL49 is an essential subunit of the viral pre-initiation complex that regulates human cytomegalovirus gene transcription.iScience · 2022Article
- The Contribution of Kaposi's Sarcoma-Associated Herpesvirus ORF7 and Its Zinc-Finger Motif to Viral Genome Cleavage and Capsid Formation.Journal of virology · 2022Article
- Biomolecular Fluorescence Complementation Profiling and Artificial Intelligence Structure Prediction of the Kaposi's Sarcoma-Associated Herpesvirus ORF18 and ORF30 Interaction.International journal of molecular sciences · 2022Article
- Accurate Quantification of Overlapping Herpesvirus Transcripts from RNA Sequencing Data.Journal of virology · 2022Article
- Pax5 mediates the transcriptional activation of the CD81 gene.Scientific reports · 2021Article
- Cytomegalovirus late transcription factor target sequence diversity orchestrates viral early to late transcription.PLoS pathogens · 2021Article
- Kaposi's Sarcoma-Associated Herpesvirus ORF7 Is Essential for Virus Production.Microorganisms · 2021Article
- UBE1a Suppresses Herpes Simplex Virus-1 Replication.Viruses · 2020Article
- Quantitative Proteomics Analysis of Lytic KSHV Infection in Human Endothelial Cells Reveals Targets of Viral Immune Modulation.Cell reports · 2020Article
- Murine Cytomegalovirus Protein pM49 Interacts with pM95 and Is Critical for Viral Late Gene Expression.Journal of virology · 2020Article
- Kaposi's Sarcoma-Associated Herpesvirus ORF66 Is Essential for Late Gene Expression and Virus Production via Interaction with ORF34.Journal of virology · 2020Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) is closely associated with B-cell and endothelial cell malignancies. After the initial infection, KSHV retains its viral genome in the nucleus of the host cell and establishes a lifelong latency. During lytic infection, KSHV-encoded lytic-related proteins are expressed in a sequential manner and are classified as immediate early, early, and late (L) gene transcripts. The transcriptional initiation of KSHV late genes is thought to require the complex formation of the viral preinitiation complex (vPIC), which may consist of at least 6 transcription factors (ORF18, -24, -30, -31, -34, and -66). However, the functional role of ORF66 in vPIC during KSHV replication remains largely unclear. Here, we generated ORF66-deficient KSHV using a bacterial artificial chromosome (BAC) system to evaluate its role during viral replication. While ORF66-deficient KSHV demonstrated mainly attenuated late gene expression and decreased virus production, viral DNA replication was unaffected. Chromatin immunoprecipitation analysis showed that ORF66 bound to the promoters of a late gene (K8.1) but did not bind to those of a latent gene (ORF72), an immediate early gene (ORF16), or an early gene (ORF46/47). Furthermore, we found that three highly conserved C-X-X-C sequences and a conserved leucine repeat in the C-terminal region of ORF66 were essential for the interaction with ORF34, the transcription of K8.1, and virus production. The interaction between ORF66 and ORF34 occurred in a zinc-dependent manner. Our data support a model in which ORF66 serves as a critical vPIC component to promote late viral gene expression and virus production.
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