1 Department of Molecular Biosciences, University of Texas at Austin, Austin, 78712, Texas, USA.
2 Department of Chemistry, Boston University, Boston, 02215, Massachusetts, USA.
3 CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
4 Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, 15213, Pennsylvania, USA.
5 Center for Biomedical Mass Spectrometry, Boston University School of Medicine, Boston, 02118, Massachusetts, USA.
6 CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. lzhang03@gmail.com.
7 Department of Chemistry, Boston University, Boston, 02215, Massachusetts, USA. pinghua@bu.edu.
8 Department of Molecular Biosciences, University of Texas at Austin, Austin, 78712, Texas, USA. jzhang@cm.utexas.edu.
9 Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, 78712, Texas, USA. jzhang@cm.utexas.edu.