Evidence map›Paper›PMID 32433693›Full record

ArticlePLoS pathogens2020

Identification of functional cis-acting RNA elements in the hepatitis E virus genome required for viral replication.

Xiaohui Ju, Guangtao Xiang, Mingli Gong, Rui Yang, Jierui Qin, Yafei Li, Yuchen Nan, Yonglin Yang, Qiangfeng Cliff Zhang, Qiang Ding

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

22 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Differential miRNA signatures in Hepatitis E Virus Infection: Insights into acute, chronic, and pregnancy-related outcomes.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Review
  5. Cell binding tropism of rat hepatitis E virus is a pivotal determinant of its zoonotic transmission to humans.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Hepatitis E Virus Life Cycle.Advances in experimental medicine and biology · 2023
    Article
  13. Structural aspects of hepatitis E virus.Archives of virology · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

10 authors at 4 institutions in 1 country.

Xiaohui JuCenter for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China.ORCID 0000-0002-9552-0222
Guangtao XiangCenter for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China.
Mingli GongCenter for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China.
Rui YangSchool of Life Sciences, Tsinghua University, Beijing, China.
Jierui QinCenter for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China.
Yafei LiDepartment of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
Yuchen NanDepartment of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
Yonglin YangDepartment of General Practice, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
Qiangfeng Cliff ZhangSchool of Life Sciences, Tsinghua University, Beijing, China.ORCID 0000-0002-4913-0338
Qiang DingCenter for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China.ORCID 0000-0002-6226-869X
Tsinghua University · CNBeijing Advanced Sciences and Innovation Center · CNNorthwest A&F University · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There are approximately 20 million events of hepatitis E virus (HEV) infection worldwide annually. The genome of HEV is a single-strand, positive-sense RNA containing 5' and 3' untranslated regions and three open reading frames (ORF). HEV genome has 5' cap and 3' poly(A) tail to mimic host mRNA to escape the host innate immune surveillance and utilize host translational machineries for viral protein translation. The replication mechanism of HEV is poorly understood, especially how the viral polymerase distinguishes viral RNA from host mRNA to synthesize new viral genomes. We hypothesize that the HEV genome contains cis-acting elements that can be recognized by the virally encoded polymerase as "self" for replication. To identify functional cis-acting elements systematically across the HEV genome, we utilized an ORF1 transcomplementation system. Ultimately, we found two highly conserved cis-acting RNA elements within the ORF1 and ORF2 coding regions that are required for viral genome replication in a diverse panel of HEV genotypes. Synonymous mutations in the cis-acting RNA elements, not altering the ORF1 and ORF2 protein sequences, significantly impaired production of infectious viral particles. Mechanistic studies revealed that the cis-acting elements form secondary structures needed to interact with the HEV ORF1 protein to promote HEV replication. Thus, these cis-acting elements function as a scaffold, providing a specific "signal" that recruits viral and host factors to assemble the viral replication complex. Altogether, this work not only facilitates our understanding of the HEV life cycle and provides novel, RNA-directed targets for potential HEV treatments, but also sheds light on the development of HEV as a therapeutic delivery vector.

Indexed as

Genome, ViralRNA, ViralAnimalsHEK293 CellsHepatitis E virusHumansMiceMice, Inbred BALB CMutationOpen Reading FramesRegulatory Sequences, Ribonucleic AcidVirus ReplicationRegulatory Sequences, Ribonucleic AcidRNA, Viral

Identifiers

PMID32433693
PMCPMC7239442
OpenAlexW3026530948

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.