Joyce Susan A, Brachmann Alexander O, Glazer Itamar, Lango Lea, Schwär Gertrud, Clarke David J, Bode Helge B
Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK.
Angew Chem Int Ed Engl. 2008;47(10):1942-5. doi: 10.1002/anie.200705148.