Figure 2.

Overview of structures of PhCas6nc bound to three repeat RNAs. In the Pf7 and Pf7_ga complexes, PhCas6nc subunits are colored in teal and green and repeat RNA are colored in red and orange, respectively. Nucleotides that are substituted from Pf7 RNA are highlighted in black. The subunits colored in teal of the three complexes are superimposed and are displayed in the same orientation. The NH₂-terminus of the PhCas6nc is labeled as “N” and the COOH-terminus is labeled as “C” on the Pf7 RNA complex. The first and the last nucleotides that are modeled are indicated by numbers.