K. Dane Wittrup is C. P. Dubbs Professor of Chemical Engineering and Biological Engineering at MIT and the Koch Institute for Integrative Cancer Research at MIT. Bruce Tidor is Professor of Biological Engineering and Computer Science at MIT. Benjamin J. Hackel is Associate Professor of Chemical Engineering and Materials Science at the University of Minnesota. Casim A. Sarkar is Associate Professor of Biomedical Engineering at the University of Minnesota.