1. Department of Biochemistry and Molecular Genetics; University of Alabama at Birmingham; Birmingham AL 35294-0005
2. Wadsworth Center; P.O. Box 509 Albany NY 12201-0509
3. Department of Molecular Biology; The Scripps Institute; 10550 N. Torrey Pines Rd. La Jolla CA 92037
4. Howard Hughes Medical Institute; P.O. Box 509 Albany NY 12201-0509