September 2013 issue
Cover illustration: Cartoon representation of the TALE AvrBs3-DNA complex structure. The figure shows the protein helical repeats wrapping around the double strand DNA. Each repeat contains the dipeptides responsible of specific DNA recognition (p. 1707). The initial repeats are colored in red, lime, cyan, green and beige to indicate the initial DNA domain building blocks. The specific protein-DNA interactions involve only the coding DNA strand colored in green.