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Generation of baculovirus vectors for the high‐throughput production of proteins in insect cells
Author(s) -
Possee Robert D.,
Hitchman Richard B.,
Richards Kevin S.,
Mann Susan G.,
Siaterli Evangelia,
Nixon Clare P.,
Irving Helen,
Assenberg Rene,
Alderton David,
Owens Raymond J.,
King Linda A.
Publication year - 2008
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.22002
Subject(s) - polyhedrin , recombinant dna , biology , homologous recombination , recombinant virus , vector (molecular biology) , replicon , baculoviridae , gene , virus , computational biology , virology , genetics , microbiology and biotechnology , plasmid , spodoptera
The baculovirus expression system is one of the most popular methods used for the production of recombinant proteins but has several complex steps which have proved inherently difficult to adapt to a multi‐parallel process. We have developed a bacmid vector that does not require any form of selection pressure to separate recombinant virus from non‐recombinant parental virus. The method relies on homologous recombination in insect cells between a transfer vector containing a gene to be expressed and a replication‐deficient bacmid. The target gene replaces a bacterial replicon at the polyhedrin loci, simultaneously restoring a virus gene essential for replication. Therefore, only recombinant virus can replicate facilitating the rapid production of multiple recombinant viruses on automated platforms in a one‐step procedure. Using this vector allowed us to automate the generation of multiple recombinant viruses with a robotic liquid handler and then rapidly screen infected insect cell supernatant for the presence of secreted proteins. Biotechnol. Bioeng. © 2008 Wiley Periodicals, Inc.