eLife Assessment
The study presents valuable findings of a new E. coli cell-free protein synthesis (eCFPS) system that has been simplified by reducing the number of core components from 35 to 7; furthermore, the findings communicate a simplified 'fast lysate' preparation that eliminates the need for traditional runoff and dialysis steps. The system's robustness is exhibited by its applicability to nanoluc, an ubiquitous protein and to more challenging proteins like vimentin and the active restriction endonuclease Bsal. The evidence is convincing and supports the main claims on efficiency backed up by investigations on the mechanisms. The paper will be of interest to scientists in cell and molecular biology, microbiology, biotechnology and protein synthesis.