1. Department of Biochemistry and Molecular Biology, The University of Kansas Medical Center , 3901 Rainbow Blvd., Kansas City, KS 66160, USA
2. Chemistry Department, Southwestern Oklahoma State University , 100 Campus Dr., Weatherford, OK 73096, USA
3. Department of Family Medicine and Community Health, The University of Kansas Medical Center , 3901 Rainbow Blvd., Kansas City, KS 66160, USA
4. Department of Biology, University of Waterloo , 200 University Ave. W, Waterloo, ON N2L 3G1, Canada