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  • Ch'ng, Jun-HongKarolinska Institutet (author)

Epitopes of anti-RIFIN antibodies and characterization of rif-expressing Plasmodium falciparum parasites by RNA sequencing

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-02-24
  • Springer Science and Business Media LLC,2017
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-141400
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-141400URI
  • https://doi.org/10.1038/srep43190DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-204077URI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:135226043URI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20170329
  • Variable surface antigens of Plasmodium falciparum have been a major research focus since they facilitate parasite sequestration and give rise to deadly malaria complications. Coupled with its potential use as a vaccine candidate, the recent suggestion that the repetitive interspersed families of polypeptides (RIFINs) mediate blood group A rosetting and influence blood group distribution has raised the research profile of these adhesins. Nevertheless, detailed investigations into the functions of this highly diverse multigene family remain hampered by the limited number of validated reagents. In this study, we assess the specificities of three promising polyclonal anti-RIFIN antibodies that were IgG-purified from sera of immunized animals. Their epitope regions were mapped using a 175,000-peptide microarray holding overlapping peptides of the P. falciparum variable surface antigens. Through immunoblotting and immunofluorescence imaging, we show that different antibodies give varying results in different applications/assays. Finally, we authenticate the antibody-based detection of RIFINs in two previously uncharacterized non-rosetting parasite lines by identifying the dominant rif transcripts using RNA sequencing.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Sirel, MadleKarolinska Institutet (author)
  • Zandian, ArashKTH,Proteomik och nanobioteknologi,Science for Life Laboratory, SciLifeLab(Swepub:kth)u11qiehv (author)
  • del Pilar Quintana, Maria (author)
  • Chan, Sherwin Chun Leung (author)
  • Moll, KirstenKarolinska Institutet (author)
  • Tellgren-Roth, ÅsaStockholms universitet,Institutionen för biokemi och biofysik(Swepub:su)aste1633 (author)
  • Nilsson, IngMarieStockholms universitet,Institutionen för biokemi och biofysik(Swepub:su)inils (author)
  • Nilsson, PeterKTH,Proteomik och nanobioteknologi,Science for Life Laboratory, SciLifeLab(Swepub:kth)u1ws88sk (author)
  • Qundos, UlrikaKTH,Proteomik och nanobioteknologi,Science for Life Laboratory, SciLifeLab(Swepub:kth)u1m6ivho (author)
  • Wahlgren, MatsKarolinska Institutet (author)
  • Karolinska InstitutetProteomik och nanobioteknologi (creator_code:org_t)

Related titles

  • In:Scientific Reports: Springer Science and Business Media LLC72045-2322

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