1. 1Living Systems Institute, University of Exeter, Exeter, U.K.
2. 2Faculty of Health and Life Sciences, University of Exeter, Exeter, U.K.
3. 3Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
4. 4Institute of Chemical Sciences and Technologies ‘Giulio Natta’, National Research Council (CNR), Rome, Italy
5. 5School of Biochemistry, University of Bristol, Bristol BS8 1TD, U.K.