Titin exon specific GERP scores

Coming back to Titin gene, are all exons equally important? GERP scores could tell us something about how the exons vary in conservation level at base-pair resolution.

In the above figure, the y-axis is the exon rank and the x-axis has boxplots of GERP scores for each exon. Exons with mean GERP scores above 0 are colored red and those below zero are colored blue. One can clearly see the GERP score reduce considerably between exons 160 and 200.