E. coli expressed proteins as diagnostic reagents for typing of foot-and-mouth disease virus

E. coli expressed proteins as diagnostic reagents for typing of foot-and-mouth disease virus Truncated proteins corresponding to the C-terminal half of VP1 of four vaccine strains and two field variants of foot-and-mouth disease virus (FMDV) were expressed in E. coli. The expressed proteins were affinity purified and their type specific reactivity was confirmed by immunoprecipitation with anti-virus antibodies. Antibodies were raised against the purified proteins in guinea pigs and the type specificity of the anti peptide antibodies was confirmed by antigen capture reverse transcription polymerase chain reaction (Ag-RT/PCR) where the sera against a particular type captured the homologous virus. Antibodies were purified by immuno-affinity chromatography and tested for specificity by various serological tests. Using the purified proteins and the antibodies raised against them, tests like ELISA, Ag-RT/PCR, and latex agglutination test (LAT) were standardized. Application of the reagents in various tests was studied by screening a few field samples and by nucleotide sequencing. Specific reactivity of antibodies raised against expressed protein was seen with both vaccine virus and field samples. Thus E. coli expressed proteins and antibodies to them may form an alternative and cheap source of diagnostic reagents. The studies showed that antibodies against peptides were mono-specific and therefore may be used in LAT for rapid typing of FMDV and Ag-RT/PCR for typing ELISA negative field samples. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

E. coli expressed proteins as diagnostic reagents for typing of foot-and-mouth disease virus

Loading next page...
Copyright © Wien by 1999 Springer-Verlag/
Publisher site
See Article on Publisher Site

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial