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Panel (A) shows the annotation of instance IL_4JRC_003 of the C-loop motif, numbered as in motif group IL_73276.5; the unnumbered C between A6 and G7 is bulged out and not identified as a core nucleotide. Bases that are aligned vertically are stacked in the motif, in particular A6 and G7. Panel (B) shows the model tree consisting of an Initial node (I), Cluster node (C) and Terminal Node.
