NATX Plasmids, for: DNA Vaccines, Gene Therapeutics, Viral Vectors andBiophamacueticals

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Plasmid Detox using pINT PL PR Shuttle Vector
NTC strain engineering service for improving yields of toxic plasmids

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Phone: (402) 323-6289 (natx)
Fax: (402) 323-6292

Email: support@natx.com


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pINT PL PR Shuttle vector

Plasmid yields in fermentation culture typically range up to 2g/L, or more, for plasmids with non-toxic inserts.  However, some inserts are toxic to E. coli, making it difficult to grow the quantities needed, also resulting in plasmid loss, mutations and deletions.

NTC has devised a novel and economical strain engineering service, using the pINT PL PR Shuttle, wherein the host strain chromosome of E. coli is modified to include a gene that is expressed as antisense to the plasmid-encoded toxic gene (1). Elimination of the toxic gene products allows the plasmid to be grown to the high levels needed for producing larger quantities of plasmid.

Easy ~
NTC’s pINT PL PR shuttle makes it fast and simple to knock down expression
of toxic genes in E. coli during plasmid DNA production

Economical ~
$1,249 includes: vector; cloning; strain engineering; and testing


Effective ~
Typical four-fold improvement in plasmid yield
Plasmid Detox using pINT PL PR Shuttle Vector
Luke, J., Carnes, A.E., Hodgson, C.P., and Williams, J.A. (2011) Vector insert-targeted integrative antisense expression system for plasmid stabilization. Mol Biotechnol. 47:43-49.

XXXXNTC’s Detox Plasmid Yield Improvement Process