Affiliation: | (1) Edinburgh Biomolecular NMR Unit, Joseph Black Building, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, Scotland;(2) Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, Ohio, 45267-0524, U.S.A.;(3) Torrey Pines Institute for Molecular Studies, 3550 General Atomics Court, San Diego, U.S.A. |