Roma N. Agrawal Leenay, R. T., Maksimchuk, K. R., Slotkowski, R. A., Agrawal, R. N., Gomaa, A. A., Briner, A. E., … Beisel, C. L. (2016). Identifying and Visualizing Functional PAM Diversity across CRISPR-Cas Systems. MOLECULAR CELL, 62(1), 137–147. https://doi.org/10.1016/j.molcel.2016.02.031