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Title: Expression, purification and characterization of full-length RNA-free hepatitis B core particles
Authors: Broos, Katleen ×
Vanlandschoot, Peter
Maras, Marleen
Robbens, Johan
Leroux-Roels, Geert
Guisez, Yves #
Issue Date: Jul-2007
Publisher: Academic Press
Series Title: Protein Expression and Purification vol:54 issue:1 pages:30-37
Abstract: The nucleocapsid or core particle of the hepatitis B virus has become one of the favourite recombinant vaccine carriers for foreign peptides, proteins and stimulatory oligonucleotides. The core protein consists of three regions: an N-terminal, a central and a C-terminal region that can accommodate the addition or insertion of the foreign sequences. The protamine-like C-terminal region that binds host RNA randomly during recombinant particle formation is often truncated. It is commonly thought that these truncations do not affect particle assembly. Recent studies have demonstrated that the C-terminal domains mediate a glycosaminoglycan-dependent attachment of nucleocapsids to the plasma membranes of host cells. This interaction might well contribute to the immunogenicity of nucleocapsids. Testing the hypothesis that full-length particles might be safer and superior for the induction of an immune response against the nucleocapsids and inserted sequences, requires the availability of purified particles. In this report, we detail a novel method for the synthesis and purification of full-length core particles essentially free of RNA from Escherichia coli. (c) 2007 Elsevier Inc. All rights reserved.
URI: 
ISSN: 1046-5928
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemistry, Campus Kulak Kortrijk
× corresponding author
# (joint) last author

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