1. Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
2. Department of Applied Physics, Stanford University, Stanford, California 94305, USA
3. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
4. Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
5. Bioscience Division, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
6. Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California 94158, USA
7. Computer, Computational, and Statistical Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
8. Department of Biochemistry and the Redox Biology Center, University of Nebraska, Lincoln, Nebraska 68588, USA