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Updated: May 12, 2026

Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
Published on: October 20, 2021
Purification and biophysical characterization of hepatitis B antigen
Abstract:
Hepatitis B antigen (HB Ag) has been purified from serum by pepsin digestion and equilibrium sedimentation. The sedimentation coefficient, density, particle size, and electrophoretic mobility have been determined before and after purification and found to be unaltered. In addition, the diffusion constant and molecular weight of purified HB Ag have been documented. Because the biophysical characteristics found are not consistant with those of any known virus, it is believed that native HB Ag is made up almost entirely of incomplete virus.
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