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Figure 6 | BMC Evolutionary Biology

Figure 6

From: Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron

Figure 6

Structural variations in L5b and P6a of NaGIR2. A) NJ phylogenetic tree of the 13 complete Nae.S516 introns based on 1370 positions. NJ and MP bootstrap values are indicated at the branches. The presence of L5b tetra- (red), penta- (blue), or hexaloops (green) in L5b in NaGIR2 are indicated. All tetra-loops belong to the GNRA-loop family. B) Structure diagrams of P6a (grey boxes) and L9b representing the 13 twin-ribozyme Nae.S516 introns.

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