1. Biochemistry Department, School of Biomedical Sciences, University of Otago, P.O. Box 56, 710 Cumberland Street, Dunedin 9054, New Zealand.
2. Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA.
3. Structural Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
4. Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
5. Department of Biochemistry & Molecular Biology, University of Georgia, Athens, GA 30602, USA.