Dotter is a graphical dotplot program for detailed comparison of two sequences. Here, every residue in one sequence is compared to every residue in the other sequence. The first sequence runs along the x-axis and the second sequence along the y-axis. In regions where the two sequences are similar to each other, a row of high scores will run diagonally across the dot matrix. If you’re comparing a sequence against itself to find internal repeats, you’ll notice that the main diagonal scores maximally, since it’s the 100% perfect self-match.
- Linux / Windows / MacOsX
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A dot-matrix program with dynamic threshold control suited for genomic DNA and protein sequence analysis
Erik L.L. Sonnhammer a,), Richard Durbin