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Related Experiment Videos

Seroreactive recombinant herpes simplex virus type 2-specific glycoprotein G.

D L Parkes1, C M Smith, J M Rose

  • 1Triton Biosciences Inc., Alameda, California 94501.

Journal of Clinical Microbiology
|April 1, 1991
PubMed
Summary
This summary is machine-generated.

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A new recombinant glycoprotein G (gG) protein specific to herpes simplex virus type 2 (HSV-2) has been developed. This HSV-2 gG protein shows promise for accurately detecting HSV-2 antibodies in patient sera.

Area of Science:

  • Virology
  • Immunology
  • Biotechnology

Background:

  • Herpes simplex virus type 2 (HSV-2) causes significant human infections.
  • HSV-2 possesses a unique envelope protein, glycoprotein G (gG), with type-specific epitopes.
  • Accurate serological detection of HSV-2 infection is crucial for diagnosis and management.

Purpose of the Study:

  • To express and purify a recombinant form of HSV-2 glycoprotein G (gG).
  • To evaluate the specificity and utility of the recombinant gG protein in detecting HSV-2 antibodies.

Main Methods:

  • Expression of a portion of the HSV-2 gG gene as a fusion protein in Escherichia coli.
  • Purification of the recombinant protein using ion-exchange chromatography.
  • Serological assays including indirect immunofluorescence, immunoblot, and patient serum analysis.

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Main Results:

  • A 60,000-molecular-weight recombinant gG protein was successfully purified.
  • The recombinant protein elicited type-specific antibodies in mice reactive to HSV-2 but not HSV-1.
  • The recombinant gG demonstrated high reactivity with HSV-2 positive patient sera (14/15) and no reactivity with HSV-2 negative sera (0/15).
  • Prevalence study showed 27.6% reactivity in random individuals, aligning with expected HSV-2 infection rates.

Conclusions:

  • The purified recombinant HSV-2 gG protein is type-specific.
  • This recombinant protein is a valuable tool for detecting HSV-2 specific antibody responses.
  • The findings support the use of this recombinant gG in diagnostic assays for HSV-2 infection.