ArticleJournal of virology2017
Capsid Phosphorylation State and Hepadnavirus Virion Secretion.
Article in Journal of virology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
40 citing papers in PubMed, 59 citations in OpenAlex.
- Cryo-EM structures of HBV capsids from human cells at near-atomic resolution.Structure (London, England : 1993) · 2026Article
- Hepatitis B Virus Nucleocapsid Assembly.Journal of molecular biology · 2025Review
- HBV polymerase recruits the phosphatase PP1 to dephosphorylate HBc-Ser170 to complete encapsidation.PLoS pathogens · 2025Article
- HBc: the multifunctional architect of HBV replication, immune evasion, and therapeutic innovation.Frontiers in immunology · 2025Review
- Hepatitis B virus entry, assembly, and egress.Microbiology and molecular biology reviews : MMBR · 2024Review
- Significance of hepatitis B virus capsid dephosphorylation via polymerase.Journal of biomedical science · 2024Article
- Emerging roles of the Protein Phosphatase 1 (PP1) in the context of viral infections.Cell communication and signaling : CCS · 2024Review
- Peptidyl-prolyl cis/trans isomerase Pin1 interacts with hepatitis B virus core particle, but not with HBc protein, to promote HBV replication.Frontiers in cellular and infection microbiology · 2023Article
- Conserved Lysine Residues of Hepatitis B Virus Core Protein Are Not Required for Covalently Closed Circular DNA Formation.Journal of virology · 2022Article
- Autophagic membranes participate in hepatitis B virus nucleocapsid assembly, precore and core protein trafficking, and viral release.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Constrained evolution of overlapping genes in viral host adaptation: Acquisition of glycosylation motifs in hepadnaviral precore/core genes.PLoS pathogens · 2022Article
- Region-Specific Hepatitis B Virus Genome Exposure from Nucleocapsid Modulated by Capsid Linker Sequence and Inhibitor: Implications for Uncoating.Journal of virology · 2022Article
- CaMicroorganisms · 2022Article
- The Hepatitis B Virus Nucleocapsid-Dynamic Compartment for Infectious Virus Production and New Antiviral Target.Biomedicines · 2021Review
- Characterization and Application of Precore/Core-Related Antigens in Animal Models of Hepatitis B Virus Infection.Hepatology (Baltimore, Md.) · 2021Article
- Regulation of Hepatitis B Virus Replication by Cyclin Docking Motifs in Core Protein.Journal of virology · 2021Article
- Analytical validation of hepatitis B core-related antigen (HBcrAg) using dried blood spots (DBS).Journal of viral hepatitis · 2021Article
- Characterization of Hepatitis B Precore/Core-Related Antigens.Journal of virology · 2021Article
- Multiple roles of PP2A binding motif in hepatitis B virus core linker and PP2A in regulating core phosphorylation state and viral replication.PLoS pathogens · 2021Article
- Review
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
Abstract
The C-terminal domain (CTD) of hepadnavirus core protein is involved in multiple steps of viral replication. In particular, the CTD is initially phosphorylated at multiple sites to facilitate viral RNA packaging into immature nucleocapsids (NCs) and the early stage of viral DNA synthesis. For the avian hepadnavirus duck hepatitis B virus (DHBV), CTD is dephosphorylated subsequently to facilitate the late stage of viral DNA synthesis and to stabilize NCs containing mature viral DNA. The role of CTD phosphorylation in virion secretion, if any, has remained unclear. Here, the CTD from the human hepatitis B virus (HBV) was found to be dephosphorylated in association with NC maturation and secretion of DNA-containing virions, as in DHBV. In contrast, the CTD in empty HBV virions (i.e., enveloped capsids with no RNA or DNA) was found to be phosphorylated. The potential role of CTD dephosphorylation in virion secretion was analyzed through mutagenesis. For secretion of empty HBV virions, which is independent of either viral RNA packaging or DNA synthesis, multiple substitutions in the CTD to mimic either phosphorylation or dephosphorylation showed little detrimental effect. Similarly, phospho-mimetic substitutions in the DHBV CTD did not block the secretion of DNA-containing virions. These results indicate that CTD dephosphorylation, though associated with NC maturation in both HBV and DHBV, is not essential for the subsequent NC-envelope interaction to secrete DNA-containing virions, and the CTD state of phosphorylation also does not play an essential role in the interaction between empty capsids and the envelope for secretion of empty virions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.