Tetragenetics Inc. has been keeping a low profile with partnerships for its protein expression and manufacturing platform, but this week was set to unveil deals with Amgen Inc. and Pfizer Inc. to produce proteins for antibody screens that would be difficult to make in standard expression systems.

The company also is releasing further details of its work under a grant from the Bill & Melinda Gates Foundation's Grand Challenges Explorations initiative to use discoveries from the same platform to produce antigens for vaccines.