Hepatitis B virus pre-S2 mutant surface antigen induces degradation of cyclin-dependent kinase inhibitor p27Kip1 through c-Jun activation domain-binding protein 1.

Abstract excerpt

The hepatitis B virus (HBV) large surface antigen (LHBS) mutant with deletion at the pre-S(2) region accumulates in endoplasmic reticulum (ER) and is associated with HBV-induced hepatocellular carcinogenesis. In this study, we found that the pre-S(2) LHBS mutant directly interacts with the Jun activation domain-binding protein 1 (JAB1). Association of pre-S(2) LHBS with JAB1 dissociated JAB1 from the JAB1/IRE1...

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