1. Department of Microbiology and Plant Biology University of Oklahoma Norman OK, 73019 USA
2. Department of Chemistry & Biochemistry University of California Los Angeles CA, 90095 USA
3. Price Family Foundation Institute of Structural Biology University of Oklahoma Norman OK, 73019 USA
4. UCLA DOE Institute University of California Los Angeles CA, 90095 USA
5. Department of Microbiology, Immunology, and Molecular Genetics University of California Los Angeles CA USA
6. UCLA‐Molecular Biology Institute University of California Los Angeles CA USA