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Updated: Aug 7, 2026
11:14
Detection of Low Copy Number Integrated Viral DNA Formed by In Vitro Hepatitis B Infection
Published on: November 7, 2018
Unique preS sequence in a gibbon-derived hepatitis B virus variant
L T Mimms1, L R Solomon, J W Ebert
1Abbott Laboratories, North Chicago, IL 60064.
Biochemical and Biophysical Research Communications
|August 31, 1993
Summary
A unique hepatitis B virus (HBV) variant found in gibbons shows distinct preS gene mutations. These genetic changes explain its lack of reactivity to specific monoclonal antibodies used for human HBV detection.
Area of Science:
- Virology
- Genetics
- Immunology
Background:
- Hepatitis B virus (HBV) infects humans and other primates.
- The preS region of HBV is crucial for viral entry and is a target for antibodies.
Purpose of the Study:
- To sequence the PreS gene of a unique gibbon HBV variant.
- To understand the genetic basis for the variant's unusual antibody reactivity.
Main Methods:
- DNA sequencing of the gibbon HBV PreS gene.
- Analysis of nucleotide and amino acid substitutions in the preS1 and preS2 regions.
Main Results:
- Identified unique nucleotide and amino acid changes in the gibbon HBV preS gene.
- Observed substitutions include Gln to Lys in preS2, and Asp to Glu at preS1 residue 27.
- These alterations explain the lack of reactivity with specific preS1 and preS2 monoclonal antibodies.
Conclusions:
- The gibbon HBV variant possesses distinct genetic features in its preS region.
- These mutations confer unique immunological properties, differentiating it from human HBV strains.
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