Invited for this month's cover picture is the group of Professor Enrica Bordignon at the Ruhr University Bochum. The cover picture shows an artistic view of E. coli cells and two spin-labeled recombinantly produced proteins, which can be inserted into the cells for EPR studies. The primary sequence of the proteins is schematically shown with the one-letter amino acid code, and cysteine residues are functionalized with the two new gem diethyl nitroxide spin labels designed to better sustain the reducing cellular environment. Read the full text of their Full Paper at 10.1002/open.201900119.
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