Patent Issued for HBV vaccines and methods treating HBV (USPTO 11730808).

In some embodiments, the HBV polymerase deletion mutant polypeptide comprises in sequential order from the N-terminus to the C-terminus, an HBV core polypeptide and the HBV polymerase deletion mutant polypeptide, as described herein. In some embodiments, HBV polymerase deletion mutant polypeptide further comprises (e.g., is a fusion protein including) an HBV core polypeptide. In some embodiments, the HBV polymerase deletion mutant polypeptide comprises in sequential order from the N-terminus to the C-terminus, a terminal protein (TP) domain, an inactivated reverse transcriptase domain, and an inactivated RNase H, wherein the mutant polypeptide does not comprise all or part of a Spacer domain. [Extracted from the article]