Tetragenetics Inc. has entered into a technology access and exclusive research license agreement with Amgen for an undisclosed surface antigen. Tetragenetics’ technology enables high-density heterologous expression of recombinant human membrane proteins on the cell surface of Tetrahymena thermophila. Immunogen preparations of the drug targets can be made in several formats and are designed to enhance antibody production against the extracellular portions of the target.   Dr. Ted Clark, founder a...