Yeast Expression

Boehringer Ingelheim BioXcellence™ has developed and implemented a spectrum of processes employing yeast hosts. With our expertise we are able to generate suitable fermentation strains and downstream processes in terms of economy, product quality and efficiency.


  • At Boehringer Ingelheim Hansenula polymorpha fermentations were developed that achieved titers above 5 g/L.
  • Saccharomyces cerevisiae processes with protein titers up to 3 g/L were designed and implemented in our large-scale production plant at Vienna.


Furthermore, Boehringer Ingelheim BioXcellence™ has access to the proprietary Pichia pastoris expression system via collaboration with VALIDOGEN

The technology platform is characterized by an unparalleled speed of development, high yields and high-quality results thanks to the application of advanced and exclusive technologies.

The proteins are secreted into the fermentation supernatant. A strong and inducible AOX promoter and variants of it maximize expression of more than 10 g/l. This technology is best suited for the expression of e.g. Nanobodies® and HSA fusion proteins.

The key features of the Pichia pastoris expression system are as follows:

  • High-speed expression strain development by VTU and scale-up, and GMP manufacturing by Boehringer Ingelheim BioXcellence
  • Expression titers of more than 10 g/L
  • Purified protein in as little as 12 weeks
  • Track record for Fabs and antibody-derived fragments, scaffold proteins, enzymes, fusion proteins, cytokines and others
  • One-stop-shop concept with integrated strain, process development and GMP production within the collaboration



Boehringer Ingelheim BioXcellence - Yeast Expression

Yeast Expression - Example of Pichia Pastoris

Contact Us

Boehringer Ingelheim BioXcellence - Contact Us

Do you have any inquiries, questions or comments? Please get in touch with us.