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

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 show residues per line.
  • Show numbering the sequence.


P. Stothard. The sequence manipulation suite: JavaScript programs for analyzing and formatting protein and DNA sequences. Biotechniques 2000; 28: 1102, 1104.