1. Department of Biochemistry and Cellular and Molecular Biology, The University of Tennessee, Knoxville, Tennessee 37996
2. Department of Biotechnology and Central Laboratory Molecular Biology and Biotechnology R&D Center, Middle East Technical University, Ankara, Turkey
3. Graduate School of Genome Science and Technology, The University of Tennessee and Oak Ridge National Laboratories, Knoxville, Tennessee 37996, and Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831