Method for obtaining cells with new properties

摘要

Eubacterial cells which produce non-formylated proteins, polypeptides and/or peptides and methods for making such non-formylated products. The eubacterial cells may be produced by inactivating or deleting the def (deformylase) and/or fmt (Met-tRNA transformylase) gene(s) from the def-fmt operon of the corresponding wild-type strain.