Evidence map›Paper›PMID 34191584›Full record

ArticleJournal of virology2021

Host Poly(A) Polymerases PAPD5 and PAPD7 Provide Two Layers of Protection That Ensure the Integrity and Stability of Hepatitis B Virus RNA.

Fei Liu, Amy C H Lee, Fang Guo, Andrew S Kondratowicz, Holly M Micolochick Steuer, Angela Miller, Lauren D Bailey, Xiaohe Wang, Shuai Chen, Steven G Kultgen and 8 more

Abstract read
In one paragraph

Article in Journal of virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Targeting HBV with RNA interference: Paths to cure.Science translational medicine · 2025
    Review
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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

18 authors.

Fei LiuArbutus Biopharma, Warminster, Pennsylvania, USA.
Amy C H LeeArbutus Biopharma, Warminster, Pennsylvania, USA.
Fang GuoArbutus Biopharma, Warminster, Pennsylvania, USA.
Andrew S KondratowiczArbutus Biopharma, Warminster, Pennsylvania, USA.
Holly M Micolochick SteuerArbutus Biopharma, Warminster, Pennsylvania, USA.
Angela MillerArbutus Biopharma, Warminster, Pennsylvania, USA.
Lauren D BaileyArbutus Biopharma, Warminster, Pennsylvania, USA.
Xiaohe WangArbutus Biopharma, Warminster, Pennsylvania, USA.
Shuai ChenArbutus Biopharma, Warminster, Pennsylvania, USA.
Steven G KultgenArbutus Biopharma, Warminster, Pennsylvania, USA.
Andrea CuconatiArbutus Biopharma, Warminster, Pennsylvania, USA.
Andrew G ColeArbutus Biopharma, Warminster, Pennsylvania, USA.
Dimitar GotchevArbutus Biopharma, Warminster, Pennsylvania, USA.
Bruce D DorseyArbutus Biopharma, Warminster, Pennsylvania, USA.
Rene RijnbrandArbutus Biopharma, Warminster, Pennsylvania, USA.
Angela M LamArbutus Biopharma, Warminster, Pennsylvania, USA.
Michael J SofiaArbutus Biopharma, Warminster, Pennsylvania, USA.
Min GaoArbutus Biopharma, Warminster, Pennsylvania, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Noncanonical poly(A) polymerases PAPD5 and PAPD7 (PAPD5/7) stabilize hepatitis B virus (HBV) RNA via the interaction with the viral posttranscriptional regulatory element (PRE), representing new antiviral targets to control HBV RNA metabolism, hepatitis B surface antigen (HBsAg) production, and viral replication. Inhibitors targeting these proteins are being developed as antiviral therapies; therefore, it is important to understand how PAPD5/7 coordinate to stabilize HBV RNA. Here, we utilized a potent small-molecule AB-452 as a chemical probe, along with genetic analyses to dissect the individual roles of PAPD5/7 in HBV RNA stability. AB-452 inhibits PAPD5/7 enzymatic activities and reduces HBsAg both

Indexed as

RNA StabilityVirus ReplicationAnimalsAntiviral AgentsChromosomal Proteins, Non-HistoneDNA-Directed DNA PolymeraseEnzyme InhibitorsHepatitis BHepatitis B virusHep G2 CellsHumansMaleMiceMice, Inbred C57BLRNA NucleotidyltransferasesRNA, ViralAntiviral AgentsChromosomal Proteins, Non-HistoneDNA-Directed DNA PolymeraseEnzyme InhibitorsRNA NucleotidyltransferasesRNA, ViralTENT4A protein, humanTENT4B protein, humanAB-452HBV PREHBV RNA integrityPAPD5PAPD7RNA integrityRNA stability

Identifiers

PMID34191584
PMCPMC8387043

What OpenQuestion holds

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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.