Protein Expression
Promega protein expression products include eukaryotic and prokaryotic cell-free expression systems. Kits for plasmid DNA, RNA or PCR DNA are available. To find the cell-free expression system that is best for you, use our Product Selector or Cell-Free Protein Expression Systems Brochure.
Protein Expression Products

Express up to 500µg/ml Protein in One Hour
Simplify expression of sequences cloned in plasmid vectors with the new S30 T7 High-Yield Protein Expression System.
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TNT® SP6 High Yield Wheat Germ System
- Express high yields of functional protein in a few hours
- No need for special equipment
- Yields up to 100µg/ml (protein in batch mode and 400µg/ml in dialysis mode.
TNT® Quick Systems
Eukaryotic-based, cell-free expression systems that generate protein in 60-90 minutes. Protein can be used directly in multiple applications.
View product brochure See a quick protocol View catalog listingGST Pull-Downs
Learn how to use cell-free expression for convenient GST pull-down experiments.
View animationCo-Immunoprecipitation
Learn how to use cell-free expression for convenient co-immunoprecipitation experiments.
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