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Figure 6 | BMC Evolutionary Biology

Figure 6

From: Ancient intron insertion sites and palindromic genomic duplication evolutionally shapes an elementally functioning membrane protein family

Figure 6

Alignment of 7 tunicate, 6 Caenorhabditis , and 7 bacterial IRK AA sequences. Alignments were performed by using the Clustalx1.83 program. No gaps were deleted. Intron-intervening sites are illustrated by changes in colors of AA code characters. Red to black transition or vice versa represents phase 0 intron insertion (the case for the intron intervention between two neighboring AA codes). Green and sky blue indicate phase 1 intron (intron insertion between first and second nucleotides of an AA code), and phase 2 intron (between second and third nucleotides in an AA code) insertions, respectively. Characters with a yellow background and boxed indicate the conservation of intron sites between tunicate and Caenorhabditis. They were also noted by red rods in the lowest Clustal Consensus line. Purple background characters indicate either edges of intrinsic gaps in the bacterial AA sequences corresponding to some intron insertion sites in the Caenorhabditis. Upper 7 taxis are tunicates, middle six Caenorhabditis, and lower 7 prokaryotes. The lowest line indicates Clustal Consensus with stars and dots.

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