engineering of CRISPR spacers (figs. 54 and 55), and inactivation of cm genes is available on Selena Online. R. K Wiest'', P. Redder, R. A Gantt, K. flrigger, erchoro 2, 59 (2006). W. M. Russell. 1. R. Klaenhammer, Ant &Sion aunotoot 67, 4361 12001). K. S. Makarova, L marina N. V. Grishin, I. B. Rogow,