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Duck hepatitis B virus
Duck Hepatitis B virus, DHBV, is part of the Avihepadnavirus genus of the Hepadnaviridae, and is the causal agent of duck hepatitis B.
Additional recommended knowledge
DHBV is a small DNA virus with a diameter of 40-45nm. The viral envelope is made up from host cell lipid, with viral surface antigens (DHBsAg). The icosahedral nuclocapsid within, is composed of the virus core antigen (DHBcAg) and surrounds the DNA genome and viral polymerase. The viral genome is a circular double stranded DNA molecule about 3000 base pairs long. The genome has three overlapping open reading frames or ORFs:
On binding and entry of the virus to the host cell, the genome is transported to the nucleus to be transcribed. Novel viral RNA is then transferred to the cytoplasm for translation and subsequent protein synthesis.
The earliest steps in hepatitis B virus infection. Biochim Biophys Acta. 2003 Jul 11;1614(1):89-96.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Duck_hepatitis_B_virus". A list of authors is available in Wikipedia.|