1. Martin Fisher School of Physics, Brandeis University, Waltham, MA 02453, USA
2. Department of Physics and Astronomy, University of California Riverside, Riverside, CA 92521, USA
3. CSSB Centre for Structural Systems Biology, Deutsches Elektronen Synchrotron DESY, Leibniz Institute of Virology (LIV), 22607 Hamburg, Germany
4. Institute of Chemistry and Metabolomics, University Lübeck, 23562 Lübeck, Germany