1. Department
of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
2. Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
3. Department
of Biological Sciences, Marquette University, Milwaukee, Wisconsin 53201, United States
4. Department
of Biochemistry, Virginia Tech, Blacksburg, Virginia 24061, United States