Institution: | 1. Department of Molecular Biosciences and the Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA;2. Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA;3. Department of Chemistry, Duke University Medical Center, Durham, NC 27710, USA;4. Department of Biochemistry, Stanford University, Stanford, CA 94305, USA |