1 Department of Biochemistry and the Norris-Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA; Department of Internal Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA 02138, USA.
2 Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA; Department of Chemistry and Biochemistry, UCLA, CA 90095, USA.
3 Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA; Department of Biochemistry and Molecular Genetics, University of Virginia Medical School, Charlottesville, VA 22908, USA.
4 Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
5 Department of Biochemistry and the Norris-Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA. Electronic address: duane.a.compton@dartmouth.edu.
6 Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA; Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA. Electronic address: cimini@vt.edu.