1. School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
2. Department
of Chemistry, University of Sheffield,
Sheffield S3 7HF, U.K.
3. School
of Chemistry and Chemical
Engineering, Queen’s University of Belfast, Belfast BT9 5AG, Northern Ireland
4. Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia
23284, United States
5. Department of Cell and Molecular
Biology, Uppsala University, S-751 24 Uppsala,
Sweden
6. Department of Chemistry
and
Biochemistry, San Francisco State University, San Francisco, California 91432, United States