I may be missing something... but wouldn't using the Perl built-in substr, i.e. a simple substr($seq, -20) do the job?

(A negative offset returns that many chars counting from the end of the string.)

In reply to Re: How Do I Get the Last 20 Nucleotides In A FASTA Subsequence? by almut
in thread How Do I Get the Last 20 Nucleotides In A FASTA Subsequence? by vikuuu

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