Affiliation: | aDepartment of Integrative Structural and Computational Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA, 92037;;bJoint Center for Structural Genomics, Stanford Synchrotron Radiation Lightsource, Stanford, CA, 94025; and;cDepartment of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, 94158 |