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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Trends Biochem Sci. 2012 Dec 4;38(1):47–55. doi: 10.1016/j.tibs.2012.11.001

Figure I.

Figure I

Noncanonical C-loop motifs. BC RNA C-loop motifs are aligned with a previously described eukaryotic C-loop motif [58]. Canonical and non-canonical nucleotide interactions are indicated. Base pairings are typified using the Leontis and Westhof scheme of symbolic representations [58, 90] as follows: solid symbols, cis pairing; open symbols, trans pairing; lines, cis-WC/WC (green and yellow boxes); solid circle-arrow, cis-WC/SE (blue box); open circle-square, trans-WC/H (purple box). Adapted from Eom et al. [44], with permission. Copyright © American Society for Microbiology.