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How To Compute Dn/Ds From Pairwise Alignment

I have a set of sequences (human 5'utr region), with which I already did pairwise alignment against chimp and rat whole genome. So I have the output in MAF and SAM format.

Is there any existing tool which can take these pairwise alignment and compute the dn/ds score?

evolution alignment sequence genomics

Many very similar questions have been asked already, however your question doesn't make sense biologically. You have 5' UnTranslated Regions. There cannot be synonymous or non-synonymous substitutions in untranslated data!

Therefore I will close it. Please read http://en.wikipedia.org/wiki/Ka/Ks_ratio

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