Transient production of recombinant protein or monoclonal antibodies is an important step in research to study the behavior of a protein of interest in a cell, to screen and candidate proteins in early stages of therapeutic research and to enable modulation of molecular mechanism in many other fields of application.  

At Polyplus, our goal is to help you make this protein production step as seamless as possible by optimizing the genetic engineering of your plasmid of interest and the transient expression system, whether bacterial, yeast or mammalian cell-based to meet your requirements for protein yield, function and quality. 

Building on over 20 years of combined expertise in gene delivery and genetic engineering, we have developed leading technologies to ease your projects. 

• We offer time-saving plasmid engineering service to optimize your plasmid design accessible through our online plasmid design platform. 
• We offer CDMO manufacturing service for the development of production methods for recombinant proteins and for the manufacturing of proteins and antibody fragments to fit your needs from 100 mg to 50g (Research, GLP and GMP grade) in bacteria and yeast. 
• We offer ready to use cost-effective transfection solutions for transient protein production in mammalian cells, mainly HEK-293 and CHO cell lines.