Evidence map›Paper›PMID 34166701›Full record

ArticleJournal of virological methods2021

Comparison of SARS-CoV-2 N gene real-time RT-PCR targets and commercially available mastermixes.

Julianne R Brown, Denise M O'Sullivan, Divya Shah, Laura Atkinson, Rui P A Pereira, Alexandra S Whale, Eloise J Busby, Jim F Huggett, Kathryn Harris

Abstract readComparative Study
In one paragraph

Article in Journal of virological methods, 2021. 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
–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

19 citing papers in PubMed.

  1. Article
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  9. Observational
  10. High concordance in SARSCoV-2 detection between automated (Journal of public health in Africa · 2022
    Article
  11. Article
  12. One-Step RT-qPCR for Viral RNA Detection Using Digital Analysis.Frontiers in bioengineering and biotechnology · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Single-strand RPA for rapid and sensitive detection of SARS-CoV-2 RNA.medRxiv : the preprint server for health sciences · 2020
    Article
  19. 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

9 authors.

Julianne R BrownMicrobiology, Virology and Infection Prevention and Control, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom. Electronic address: julianne.brown@gosh.nhs.uk.
Denise M O'SullivanNational Measurement Laboratory at LGC, Teddington, United Kingdom.
Divya ShahMicrobiology, Virology and Infection Prevention and Control, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom.
Laura AtkinsonMicrobiology, Virology and Infection Prevention and Control, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom.
Rui P A PereiraNational Measurement Laboratory at LGC, Teddington, United Kingdom.
Alexandra S WhaleNational Measurement Laboratory at LGC, Teddington, United Kingdom.
Eloise J BusbyNational Measurement Laboratory at LGC, Teddington, United Kingdom.
Jim F HuggettNational Measurement Laboratory at LGC, Teddington, United Kingdom; School of Biosciences & Medicine, Faculty of Health & Medical Sciences, University of Surrey, United Kingdom.
Kathryn HarrisMicrobiology, Virology and Infection Prevention and Control, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aimed to evaluate the impact of four different reverse transcription quantitative PCR (RT-qPCR) master mixes on the performance of SARS-CoV-2 diagnostic PCRs using three primer/probe assays targeting the N gene (A, B and C). The dynamic range and lowest detected quantity was determined using a SARS-CoV-2 partial N gene RNA transcript dilution series (100,000-1 copy/μl) and verified using 72 nose and throat swabs, 29 of which tested positive for SARS-CoV-2 RNA.

resultsAssay C consistently detected the lowest quantity of partial N gene RNA transcript with all mastermixes. The Takara One Step PrimeScript™ III RT-PCR Kit mastermix enabled all primer pairs to detect the entire dynamic range evaluated, with the Qiagen Quantifast and Thermofisher TaqPath 1-Step kits also performing well. Sequences from all three primer/probe sets tested in this study (assay A, B and C) have 100 % homology to ≥97 % of the of SARS-CoV-2 sequences available up to 31st December 2020 (n = 291,483 sequences).

conclusionsThis work demonstrates that specific assays (in this case assay C) can perform well in terms of dynamic range and lowest detected quantity regardless of the mastermix used. However we also show that, by choosing the most appropriate mastermix, poorer performing primer pairs are also able to detect all of the template dilutions investigated. This work increases the potential options when choosing assays for SARS-CoV-2 diagnosis and provides solutions to enable them to work with optimal analytical sensitivity.

Indexed as

Coronavirus Nucleocapsid ProteinsCOVID-19COVID-19 Nucleic Acid TestingDNA PrimersHumansNosePharynxPhosphoproteinsReagent Kits, DiagnosticReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionRNA, ViralSARS-CoV-2Sensitivity and SpecificitySequence Homology, Nucleic AcidCoronavirus Nucleocapsid ProteinsDNA Primersnucleocapsid phosphoprotein, SARS-CoV-2PhosphoproteinsReagent Kits, DiagnosticRNA, ViralMastermixN geneSARS-CoV-2 RT-PCR

Identifiers

PMID34166701
PMCPMC8215874

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.