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Close-up views of the CFIm25-UUGUAU interactions. Close up views of CFIm25 interacting with each base within the UGUA element: (A) U1, (B) G2, (C) U3, and (D) A4. The protein color scheme is the same as in Fig. 1. The RNA backbone is shown in orange. Hydrogen bonds are represented by red dashed lines. Residues involved in RNA binding are shown and colored according to the domain they belong to. Water molecules involved in hydrogen bonding are shown as red spheres.
