Evidence map›Paper›PMID 36992351›Full record

ReviewViruses2023

Hepatitis B Virus Capsid: The Core in Productive Entry and Covalently Closed Circular DNA Formation.

Megan A Mendenhall, Xupeng Hong, Jianming Hu

Open access · goldAbstract readReview
In one paragraph

Review in Viruses, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Hepatitis B Virus Nucleocapsid Assembly.Journal of molecular biology · 2025
    Review
  6. Discovery ofInternational journal of molecular sciences · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Mcl-1 Protein and Viral Infections: A Narrative Review.International journal of molecular sciences · 2024
    Review
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Megan A MendenhallDepartment of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
Xupeng HongDepartment of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.ORCID 0000-0002-7091-6108
Jianming HuDepartment of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.ORCID 0000-0002-3967-2133
Pennsylvania State University · US

Funding

Mechanisms of Hepadnavirus Assembly and ReplicationR37AI043453 · NIAID · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI Jianming Hu · 2018 to 2026
$3.8M
Viral and Host Determinants of Endosomal Trafficking during HBV InfectionF31AI164874 · NIAID · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI MCGINLEY, MEGAN · 2022 to 2024
$112k
NIAID NIH HHS F31 AI164874NIH HHS 1F31AI164874-01A1NIH HHS R37AI043453
6 · The paper itself

Abstract

Hepatitis B virus (HBV) relies on the core protein (HBc) to establish productive infection, as defined by the formation of the covalently closed circularized DNA (cccDNA), as well as to carry out almost every step of the lifecycle following cccDNA formation. Multiple copies of HBc form an icosahedral capsid shell that encapsidates the viral pregenomic RNA (pgRNA) and facilitates the reverse transcription of pgRNA to a relaxed circular DNA (rcDNA) within the capsid. During infection, the complete HBV virion, which contains an outer envelope layer in addition to the internal nucleocapsid containing rcDNA, enters human hepatocytes via endocytosis and traffics through the endosomal compartments and the cytosol to deliver its rcDNA to the nucleus to produce cccDNA. In addition, progeny rcDNA, newly formed in cytoplasmic nucleocapsids, is also delivered to the nucleus in the same cell to form more cccDNA in a process called intracellular cccDNA amplification or recycling. Here, we focus on recent evidence demonstrating differential effects of HBc in affecting cccDNA formation during de novo infection vs. recycling, obtained using HBc mutations and small molecule inhibitors. These results implicate a critical role of HBc in determining HBV trafficking during infection, as well as in nucleocapsid disassembly (uncoating) to release rcDNA, events essential for cccDNA formation. HBc likely functions in these processes via interactions with host factors, which contributes critically to HBV host tropism. A better understanding of the roles of HBc in HBV entry, cccDNA formation, and host species tropism should accelerate ongoing efforts to target HBc and cccDNA for the development of an HBV cure and facilitate the establishment of convenient animal models for both basic research and drug development.

Indexed as

Hepatitis BHepatitis B virusAnimalsCapsidCapsid ProteinsDNA, CircularDNA, ViralHep G2 CellsHumansRNA, ViralVirus ReplicationCapsid ProteinsDNA, CircularDNA, ViralRNA, ViralcapsidcccDNAentryHBchepatitis B virushost factorshost tropisminfection

Identifiers

PMID36992351
PMCPMC10055883
OpenAlexW4322629076

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.