1. Astbury Centre for Structural Molecular Biology University of Leeds Woodhouse Lane Leeds LS2 9JT UK
2. School of Chemistry University of Leeds Woodhouse Lane Leeds LS2 9JT UK
3. School of Molecular and Cellular Biology University of Leeds Woodhouse Lane Leeds LS2 9JT UK
4. School of Chemistry University of Birmingham Edgbaston, Birmingham B15 2TT UK