Cell-free expression platforms allow rapid and inexpensive protein synthesis with the highest versatility and flexibility due to their open-reaction character. This permits increased control over efficient substrate handling, and conveniently promotes precise online reaction monitoring and direct process optimization.
The myTXTL® technology is well-characterized and has been employed for various applications in protein engineering and synthetic biology applications. myTXTL® Sigma 70 Master Mix is the perfect choice for high-yield production of soluble and membrane proteins, rapid prototyping of gene networks using plasmid DNA and RNA, the construction of synthetic minimal cells and to study cellular biology. The possibility of automated miniaturization makes it ideal for screening of libraries and allows fast iteration of design-build-test cycles of genetic parts and gene circuits.
myTXTL® Sigma 70 Master Mix is based on the TXTL technology developed by Vincent Noireaux, PhD at the University of Minnesota, and has been engineered for maximum robustness and reliable performance to meet our customer`s needs. The myTXTL® Sigma 70 Master Mix Kit contains of E. coli cell extract, energy buffer and amino acids mix ready-to-use for in vitro protein production in a single tube, which is simply started by adding a nucleotide template. A positive control plasmid, P70a-deGFP, is included in the kit for simple confirmation of proper protein synthesis conditions.
As in vitro protein synthesis in the myTXTL® system relies on the endogenous core RNA polymerase and primary sigma factor 70 (σ70) of E. coli, a σ70-specific promoter is mandatory to express the gene of interest. For example, the lambda phage promoter encoded on our P70a vectors provides excellent protein yield for many proteins comparable to the T7 expression system. Gene expression with a T7 promoter requires the presence of T7 RNA polymerase, which can be co-expressed from P70a-T7rnap plasmid.
NEW! Plasmids pTXTL-P70a-T7rnap and pTXTL-T7p14-deGFP are now available as high-purity (HP), ready-to-use versions.
For your convenience, Arbor Biosciences offers a large collection of over one hundred pre-designed plasmids for setting up complex gene circuits with the myTXTL® Toolbox 2.0 Plasmid Collection.
If a project occasionally requires linear DNA templates such as PCR products and myTXTL® Sigma 70 Master Mix in house, supplementing the Master Mix with GamS Purified Nuclease Inhibitor Protein is a perfect choice.
Contact us to learn about options to customize reaction size and packaging formats.