Funding for this research was provided by:
European Commission (FP-7, grant agreement no. 262055 (ESGI))
Received: 16 December 2019
Accepted: 21 July 2020
First Online: 14 August 2020
: A patent dealing with optimized T7 and other promoter sequences has been filed by Thomas Conrad and Sascha Sauer (EP19199289). The remaining authors (Izabela Plumbom, Maria Alcobendas, and Ramon Vidal) declare no competing interests.