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A Baculovirus Expression Vector Derived Entirely from Non-Templated, Chemically Synthesized DNA Parts
oleh: Christopher Nguyen, Amanda Ibe-Enwo, Jeffrey Slack
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2023-09-01 |
Deskripsi
Baculovirus expression system1s are a widely used tool in recombinant protein and biologics production. To enable the possibility of genome modifications unconstrained through low-throughput and bespoke classical genome manipulation techniques, we set out to construct a baculovirus vector (>130 kb dsDNA) built from modular, chemically synthesized DNA parts. We constructed a synthetic version of <i>Autographa californica</i> multiple nucleopolyhedrovirus (<i>Ac</i>MNPV) through two steps of hierarchical Golden Gate assembly. Over 140 restriction endonuclease sites were removed to enable the discrimination of the synthetic genome from native baculovirus genomes. A head-to-head comparison of our modular, synthetic <i>Ac</i>MNPV genome with native baculovirus vectors showed no significant difference in baculovirus growth kinetics or recombinant adeno-associated virus production—suggesting that neither baculovirus replication nor very-late gene expression were compromised by our design or assembly method. With unprecedented control over the <i>Ac</i>MNPV genome at the single-nucleotide level, we hope to ambitiously explore novel <i>Ac</i>MNPV vectors streamlined for biologics production and development.