1. Department of Biological and Diagnostic Sciences, University of Minnesota, Minneapolis, MN 55455, USA.
2. Section of Biological Chemistry, NIDCR-NIH, Bethesda, MD 20814, USA.
3. Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA.
4. Biostatistical Design and Analysis Center (BDAC), Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN 55455, USA.
5. Department of Restorative Dentistry, Oregon Health and Science University, Portland, OR 97239, USA.
6. Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA.