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KMID : 0380219960290020180
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Journal of Biochemistry and Molecular Biology
1996 Volume.29 No. 2 p.180 ~ p.182
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N-Terminal Amino Acid Sequences of Receptor-Like Proteins that Bind to preS1 of HBV in HepG2 Cells
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Lee Dong-Gun
Liu Ming-Zhu
Kim Kil-Lyong
Hahm Kyung-Soo
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Abstract
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One of the essential functions of virus surface proteins is the recognition of specific receptors on target cell membranes, and cellular receptors play an important role in viral pathogenesis. But the earliest steps of hepatitis B virus (HBV) infection, such as hepatocyte receptor interaction with the virus, are poorly understood. Previous work has suggested an important role of the preS1 region of HBV envelope protein in mediating viral binding to hepatocytes. Although hepatitis B virus (HBV) infection appears to be initiated by specific binding of virions to cell membrane structures via one or potentially several viral surface proteins, data showing the identification or isolation of the HBV receptor (s) are not yet available. The receptor-like proteins on the plasma membrane surface of HepG2 cells that bind to PreS1 were separated and identified using affinity chromatography, and the amino-terminal amino acid sequences of the receptor-like proteins were determined.
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KEYWORD
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hepatitis B virus (HBV), MBP (maltose binding protein)-preS1, receptor
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