1. Center for Metalloenzyme Studies, Chemistry Building, University of Georgia, Athens, Georgia 30602–2556
2. Department of Chemistry, Chemistry Building, University of Georgia, Athens, Georgia 30602–2556
3. Department of Biochemistry and Molecular Biology, Life Sciences Building, University of Georgia, Athens, Georgia 30602–7229
4. Complex Carbohydrate Research Center, 220 Riverbend Road, University of Georgia, Athens, Georgia 30602–4712