Fig. 6From: Development and comparison of cell-free protein synthesis systems derived from typical bacterial chassisThe E. coli, B. subtilis, C. glutamicum and V. natriegens CFPS systems as a platform for pharmaceutical protein synthesis. a Protein structure diagrams and sequence design diagrams of RBD protein (PDB: 6VW1). b Schematic diagram of ELISA principle. c Absorbance of four system protein samples with different concentrations at 450Â nm. d Endotoxin detection of extracts in the four CFPS systemsBack to article page