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)? How can I choose an expression system for my protein? What's the timeline for insect expression and purification? Where is the HIS tag going to be added for bacterial system? Here is the sequence of the peptide 'QRPRLSHKGPMP', can you make it?