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Sequence Manipulation Suite

Group DNA


Group DNA adjusts the spacing of DNA sequences and adds numbering. You can specify the group size (the number of bases per group), as well as the number of bases per line. The output of this program can serve as a convenient reference, since the numbering and spacing allows you to quickly locate specific bases.

Paste the raw sequence or one or more FASTA sequences into the text area below. Input limit is 100000 characters.





  • Use a group size of and display bases per line.
  • the reverse strand.
  • Show numbering the sequence.
  • Start the numbering at