1. Institute for Quantitative Biomedicine and Research Collaboratory for Structural Bioinformatics, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
2. Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
3. Department of Biological Sciences and Bridge Institute, University of Southern California, Los Angeles, California 90089, USA
4. Division of CryoEM and Biomaging, SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94025, USA
5. Department of Bioengineering, Stanford University, Stanford, California 94305, USA