[1] Univ Kansas, Dept Mol Biosci, Lawrence, KS 66045 USA
[2] Univ Kansas, Ctr Bioinformat, Lawrence, KS 66045 USA
[3] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA
[4] Univ Maryland, Sch Pharm, Dept Pharmaceut Sci, Baltimore, MD 21201 USA