Evidence map›Paper›PMID 19664658›Full record

ArticleJournal of virological methods2009

Heterologous expression of full-length capsid protein of porcine circovirus 2 in Escherichia coli and its potential use for detection of antibodies.

Zuzana Marcekova, Ivan Psikal, Eva Kosinova, Oldrich Benada, Peter Sebo, Ladislav Bumba

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Journal of virological methods, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.2field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 46 citations in OpenAlex.

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  10. The serological evidence in humans supports a negligible risk of zoonotic infection from porcine circovirus type 2.Biologicals : journal of the International Association of Biological Standardization · 2013
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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

6 authors at 3 institutions in 1 country.

Zuzana MarcekovaProteix s. r. o., Nad Safinou II/365 Vestec, 252 42 Jesenice u Prahy, Czech Republic.
Ivan Psikal
Eva Kosinova
Oldrich Benada
Peter Sebo
Ladislav Bumba
Czech Academy of Sciences · CZVeterinary Research Institute · CZCzech Academy of Sciences, Institute of Microbiology · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A capsid protein of porcine circovirus 2 (PCV 2) serves as a diagnostic antigen for the detection of PCV 2-associated disease known as a postweaning multisystemic wasting syndrome (PMWS). In this report, a bacterial expression system was developed for the expression and purification of the full-length PCV 2 capsid (Cap) protein from a codon-optimized cap gene. Replacement of rare arginine codons located at the 5' end of the cap reading frame with codons optimal for E. coli was found to overcome the poor expression of the viral protein in the prokaryotic system. The Cap protein was purified to greater than 95% homogeneity by using a single cation-exchange chromatography at a yield of 10 mg per litre of bacterial culture. Despite the failure of the E. coli-expressed Cap protein to self-assemble into virus-like particles (VLPs), the immunization of mice with recombinant Cap yielded antibodies with the same specificity as those raised against native PCV 2 virions. In addition, the antigenic properties of the purified Cap protein were employed in a subunit-based indirect ELISA to monitor the levels of PCV 2 specific antibodies in piglets originating from a herd which was experiencing PCV 2 infection. These results pave the way for a straightforward large-scale production of the recombinant PCV 2 capsid protein and its use as a diagnostic antigen or a PCV 2 subunit vaccine.

Indexed as

Amino Acid SequenceAnimalsAntibodies, ViralCapsid ProteinsCircovirusEscherichia coliImmunizationMolecular Sequence DataPorcine Postweaning Multisystemic Wasting SyndromeRecombinant ProteinsSwineSwine DiseasesViral VaccinesVirionAntibodies, ViralCapsid ProteinsRecombinant ProteinsViral Vaccines

Identifiers

PMID19664658
PMCPMC7119500
OpenAlexW2128591481

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.