Fig. 3
From: Bifunctional optogenetic switch for improving shikimic acid production in E. coli
Design and evaluation of the transcription and protein regulation system. a Design of the transcription and protein repression system b Evaluation of the integrated TPRS. c Evaluation of the control design of the transcription and protein repression system. d Design of the transcription and protein activation system. e Evaluation of the TPAS. f Evaluation of the (TPAS) control design g Growth profile of the TPRS and TPAS containing strains under dark and light conditions. h, i Evaluation of the TPRS and TPAS component performance: h Assessment of the benefits of TPRS, transcription, and protein repression system and its modular components PRU, protein repression unit;Â and TRU, transcription repression units. i Assessment of the TPAS, transcription, and protein activation system, together with the components; PAU, protein activation unit; TAU, transcription activation units