1. Department
of Biochemistry, Beckman Center, Stanford University, Stanford, California 94305, United States
2. Departments of Molecular and
Cellular Physiology, Neurology
and Neurological Science, Structural Biology, and Photon Science,
Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, United States
3. Molecular
and Cellular Biochemistry Department, Indiana University, Bloomington, Indiana 47405, United States
4. Department
of Biology, Indian River State College, Fort Pierce, Florida 34981, United States
5. Departments
of Chemical Engineering and Chemistry, and Stanford ChEM-H (Chemistry,
Engineering, and Medicine for Human Health), Stanford University, Stanford, California 94305, United States