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Serodiagnosis of syphilis by enzyme-linked immunosorbent assay with purified recombinant Treponema pallidum antigen 4D.

Abstract
An enzyme-linked immunosorbent assay (ELISA) for syphilis has been developed that detects IgG antibody to purified recombinant Treponema pallidum surface antigen 4D. The 4D ELISA was capable of detecting 25 ng of 4D antigen-specific antibody. Neither 172 nonsyphilitic sera nor 20 false-positive sera in the Venereal Disease Research Laboratory test reacted in the 4D ELISA. The sensitivity of the 4D ELISA was comparable to that of the adsorbed fluorescent treponemal antibody test in primary, secondary, and latent disease. Most sera from patients with yaws or pinta were also reactive, a result indicating that a 4D antigen-like molecule also exists in the closely related pathogenic treponemes Treponema pertenue and Treponema carateum.
AuthorsJ D Radolf, E B Lernhardt, T E Fehniger, M A Lovett
JournalThe Journal of infectious diseases (J Infect Dis) Vol. 153 Issue 6 Pg. 1023-7 (Jun 1986) ISSN: 0022-1899 [Print] United States
PMID3517186 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)
Chemical References
  • Antigens, Bacterial
  • Recombinant Proteins
Topics
  • Antigens, Bacterial
  • Enzyme-Linked Immunosorbent Assay (methods)
  • Humans
  • Recombinant Proteins
  • Syphilis Serodiagnosis (methods)
  • Treponema pallidum (immunology)

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