Extended Data Figure 3: Structure of CasE subunit in the Cascade complex.
From: Crystal structure of the RNA-guided immune surveillance Cascade complex in Escherichia coli
a, CasE is shown as a surface representation, and is labelled according to electrostatic potential (red, negative charge; blue, positive charge), and RNA is shown in ribbon representation (orange). b, c, Magnified view of the sequence-specific interaction between CasE and the major groove of 3′-end repeat (b), and the interaction between CasE and 3′-end repeat backbone (c). d, Expanded view of the interaction between CasE and CasC1.
