1. Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
2. Resource for Native MS Guided Structural Biology, The Ohio State University, Columbus, Ohio 43210, United States
3. Bruker Daltonics Inc., Billerica, Massachusetts 01821, United States
4. Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
5. Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida 32306, United States