The present invention relates to compositions and methods for the prevention, treatment, and diagnosis of Hepatitis B virus (HBV) infection, and discloses peptides, polypeptides, and polynucleotides that can be used to stimulate a CTL response against HBV infection. The peptide and/or proteins of the invention may be used as a therapeutic drug to stimulate the immune system to recognize and eliminate HBV infection in infected cells or as a vaccine for the prevention of disease.

The present invention relates to compositions and methods for the prevention, treatment, and diagnosis of Hepatitis B virus (HBV) infection, and discloses peptides, polypeptides, and polynucleotides that can be used to stimulate a CTL response against HBV infection. The peptide and/or proteins of the invention may be used as a therapeutic drug to stimulate the immune system to recognize and eliminate HBV infection in infected cells or as a vaccine for the prevention of disease.

The invention features compositions and methods for introducing mutations into the hepatitis B virus (HBV) genome.

RNA molecules comprising a guide sequence portion having 17-50 contiguous nucleotides containing nucleotides in the sequence set forth in any one of SEQ ID NOs: 1-18936 and compositions, methods, and uses thereof.

The present invention relates to the field of biotechnology, and discloses a hepatitis B virus mutant, a mutant amplification kit and use thereof. The HBV mutant of the invention takes place mutation of the hepatitis B virus mutant in genome sequence No. 216 and/or 285, the mutation occurred at position 216 is that base T mutates to C, the mutation occurred at position 285 is that base G mutates to A. The two mutations are closely related to the inflammation aggravation of the hepatitis B. The invention further provides a HBV mutant amplification kit to detect the above mutation, the usage of the kit and its application, therefore offering help for the clinical early diagnosis and intervention of severe hepatitis B, and providing references for further studying the functional changes caused by HBV gene mutation.

The present invention encompasses engineered nucleases which recognize and cleave a recognition sequence within a Hepatitis B virus (HBV) genome. The engineered meganucleases can exhibit at least one optimized characteristic, such as enhanced specificity and/or efficiency of indel formation, when compared to previously described HBV meganucleases. Further, the invention encompasses pharmaceutical compositions comprising engineered meganuclease proteins, nucleic acids encoding engineered meganucleases, and the use of such compositions for treating HBV infections or hepatocellular carcinoma.