What QC data do you provide for E. coli expression? May 27, 2021 07:27 Updated SDS-PAGE is default free QC test. Related articles Could you provide me with a quote regarding to certain quantity of protein (eg. 1g with 95% purity)? What's the timeline for insect expression and purification? How can I choose an expression system for my protein? Where is the HIS tag going to be added for bacterial system? How many EU equals 1ng of endotoxin?