[1] Univ Wisconsin, Genet Training Program, Madison, WI 53706 USA
[2] Univ Wisconsin, Genet Lab, Madison, WI 53706 USA
[3] Univ Wisconsin, Dept Biochem, Madison, WI 53706 USA
[4] Univ Wisconsin, Integrated Program Biochem, Madison, WI 53706 USA
[5] Univ Wisconsin, Lab Cell & Mol Biol, Madison, WI 53706 USA
[6] Univ Wisconsin, Sch Med & Publ Hlth, Dept Biomol Chem, Madison, WI 53706 USA