Evidence map›Paper›PMID 31585653›Full record

ArticleVeterinary microbiology2019

Characterization of amino acid substitutions in feline coronavirus 3C-like protease from a cat with feline infectious peritonitis treated with a protease inhibitor.

Krishani Dinali Perera, Athri D Rathnayake, Hongwei Liu, Niels C Pedersen, William C Groutas, Kyeong-Ok Chang, Yunjeong Kim

Open access · greenAbstract readCase Reports
In one paragraph

Article in Veterinary microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Immunomodulatory Effects ofInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Review
  5. Antiviral activity ofThe veterinary quarterly · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Pro108Ser mutation of SARS-CoV-2 3CLScientific reports · 2022
    Article
  11. Article
  12. Feline Coronavirus Antivirals: A Review.Pathogens (Basel, Switzerland) · 2021
    Review
  13. Current status of antivirals and druggable targets of SARS CoV-2 and other human pathogenic coronaviruses.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2020
    Review
  14. Review
  15. Article
  16. Review
  17. Systems Biology Approaches for Therapeutics Development Against COVID-19.Frontiers in cellular and infection microbiology · 2020
    Review
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

7 authors at 3 institutions in 1 country.

Krishani Dinali PereraDepartment of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA.
Athri D RathnayakeDepartment of Chemistry, Wichita State University, Wichita, KS, USA.
Hongwei LiuCenter for Companion Animal Health, School of Veterinary Medicine, University of California, Davis, CA, USA.
Niels C PedersenCenter for Companion Animal Health, School of Veterinary Medicine, University of California, Davis, CA, USA.
William C GroutasDepartment of Chemistry, Wichita State University, Wichita, KS, USA.
Kyeong-Ok ChangDepartment of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA.
Yunjeong KimDepartment of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA. Electronic address: ykim@ksu.edu.
Kansas State University · USUniversity of California, Davis · USWichita State University · US

Funding

Small Molecule Protease Inhibitors against MERS-CoV and Coronaviruses of Pandemic PotentialR01AI130092 · NIAID · KANSAS STATE UNIVERSITY · PI Kyeong-Ok Chang, William Constantine Groutas · 2018 to 2026
$5.9M
NIAID NIH HHS R01 AI130092
6 · The paper itself

Abstract

Feline infectious peritonitis (FIP) is a highly fatal disease caused by a virulent feline coronavirus in domestic and wild cats. We have previously reported the synthesis of potent coronavirus 3C-like protease (3CLpro) inhibitors and the efficacy of a protease inhibitor, GC376, in client-owned cats with FIP. In this study, we studied the effect of the amino acid changes in 3CLpro of feline coronavirus from a feline patient who received antiviral treatment for prolonged duration. We generated recombinant 3CLpro containing the identified amino acid changes (N25S, A252S or K260 N) and determined their susceptibility to protease inhibitors in the fluorescence resonance energy transfer assay. The assay showed that N25S in 3CLpro confers a small change (up to 1.68-fold increase in the 50% inhibitory concentration) in susceptibility to GC376, but other amino acid changes do not affect susceptibility. Modelling of 3CLpro carrying the amino acid changes was conducted to probe the structural basis for these findings. The results of this study may explain the observed absence of clinical resistance to the long-term antiviral treatment in the patients.

Indexed as

Amino Acid SequenceAnimalsBase SequenceBinding SitesCat DiseasesCatsCoronaviridae InfectionsCoronavirus, FelineFeline Infectious PeritonitisLactamsLeucineMaleModels, MolecularProtease InhibitorsProtein ConformationPyrrolidinesGC376LactamsLeucineProtease InhibitorsPyrrolidinesRNA, ViralSulfonic AcidsViral Proteins3C-like proteaseAntiviralsFeline coronavirusFeline infectious peritonitis virusGenetic barrierResistance

Identifiers

PMID31585653
PMCPMC6779346
OpenAlexW2969227265

What OpenQuestion holds

Textmetadata
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.