Hepatitis B virus: DNA polymerase activity of deletion mutants.

Abstract excerpt

The hepadnavirus P gene product is a multifunctional protein with priming, DNA- and RNA-dependent DNA polymerase, and RNase H activities. Nested N- or C-terminal deletion mutations and deletions of domain(s) in human HBV polymerase have been made. Wild-type and deletion forms of MBP-fused HBV polymerase were expressed in E. coli, purified by amylose column chromatography, and the DNA-dependent DNA polymerase...

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