1 Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA. mayrc@mskcc.org.
2 Department of Structural Biology, St Jude Children's Research Hospital, Memphis, TN, USA. tanja.mittag@stjude.org.
3 Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany. tang@mpi-cbg.de.
4 Department of Neurosurgery, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Fudan University, Shanghai, China. wywen@fudan.edu.cn.
5 National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China. hongzhang@ibp.ac.cn.
6 College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China. hongzhang@ibp.ac.cn.
7 Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA. huaiyinz@andrew.cmu.edu.