Table 3.
Frequency of immune epitope mutations in HBV isolates of patients with different categories of BCP and pre-core mutations
Th epitopes | CTL epitpes | B-cell epitopes | ||||
---|---|---|---|---|---|---|
Sum | Mean | Sum | Mean | Sum | Mean | |
BCP | ||||||
Mutants (n=58) | 134 | 2.31 | 51 | 0.88 | 107 | 1.84 |
Wild-type (n=11) | 6 | 0.55 | 15 | 1.36 | 14 | 1.27 |
Pre-core | ||||||
Mutants* (n=66) | 113 | 1.71 | 56 | 0.85 | 121 | 1.83 |
Wild-type (n=9) | 11 | 1.22 | 5 | 0.56 | 12 | 1.33 |
These consist of isolates with A1896 together with two other isolates with other mutations within pre-core region, one of which abolished the pre-core start codon, and the other made another stop codon in the second aa position of pre-core polypeptide.