Evidence map›Paper›PMID 17475766›Full record

ArticleClinical and vaccine immunology : CVI2007

Genetic and antigenic diversity of the surface protective antigen proteins of Erysipelothrix rhusiopathiae.

Ho To, Shinya Nagai

Open access · diamondAbstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
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  11. Article
  12. Frontiers in veterinary science · 2020
    Review
  13. Genomic and Immunogenic Protein Diversity ofFrontiers in microbiology · 2020
    Article
  14. Disassociation of Spa type and serovar of an Erysipelothrix rhusiopathiae serovar 6 strain isolated from a diseased pig.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2019
    Article
  15. The Veterinary record · 2018
    Article
  16. Article
  17. Isolation and Detection ofIranian journal of medical sciences · 2017
    Article
  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

2 authors at 1 institution in 1 country.

Ho ToNippon Institute for Biological Science, Ome, Tokyo, Japan.
Shinya Nagai
Nippon Institute for Biological Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The surface protective antigen (Spa) protein of Erysipelothrix rhusiopathiae has been shown to be highly immunogenic and is a potential candidate for a new vaccine against erysipelas. In this study, we cloned and sequenced spa genes from all E. rhusiopathiae serovar reference strains as well as from a serovar 18 strain which was not classified as any species in the genus Erysipelothrix. Sequence analysis revealed that the Spa proteins could be classified into three molecular species, including SpaA, which was previously found in serovars 1a and 2, and the newly designated SpaB and SpaC proteins. The SpaA protein is produced by E. rhusiopathiae serovars 1a, 1b, 2, 5, 8, 9, 12, 15, 16, 17, and N, the SpaB protein is produced by E. rhusiopathiae serovars 4, 6, 11, 19, and 21, and the SpaC protein is produced only by serovar 18. The amino acid sequence similarity was high among members of each Spa type (96 to 99%) but low between different Spa types ( approximately 60%). The greatest diversity in Spa proteins was found in the N-terminal half of the molecule (50 to 57% similarity), which was shown to be involved in immunoprotection. Coinciding with this, immunoblot analysis revealed that rabbit antisera specific to each Spa reacted strongly with the homologous Spa protein but weakly with heterologous Spa proteins. A mouse cross-protection study showed that the three recombinant Spa (rSpa) proteins elicited complete protection against challenge with homologous strains but that the level of protection against challenge with heterologous strains varied depending on the rSpa protein used for immunization. Our study is the first to demonstrate sequence and antigenic diversity in Spa proteins and to indicate that rSpaC may be the most promising antigen for use as a vaccine component because of its broad cross-protectiveness.

Indexed as

Genetic VariationAmino Acid SequenceAnimalsAntibodies, BacterialAntigens, BacterialBacterial VaccinesCloning, MolecularDisease Models, AnimalErysipelothrixErysipelothrix InfectionsImmunizationMaleMiceMolecular Sequence DataRabbitsSpecific Pathogen-Free OrganismsAntibodies, BacterialAntigens, BacterialBacterial VaccinesVaccines, Synthetic

Identifiers

PMID17475766
PMCPMC1951066
OpenAlexW2100819180

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Registered trials

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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.