Toolyard

Window Extractor

How to extract sliding windows from a sequence

  1. Choose DNA or protein under Sequence type, then paste the sequence, as plain text or FASTA.
  2. Set the window size and the step between the start of one window and the next.
  3. Each window becomes a FASTA record with its position in the title.

Frequently asked questions

What step should I use?

A step equal to the window size gives windows that touch without overlapping. A smaller step makes them overlap; a step of 1 gives every possible window.

How do I make overlapping peptides?

Set the window to the peptide length and the step to how far each peptide moves along, for example 15 and 5 for 15-mers that overlap by 10.

Is my sequence uploaded?

No. Everything runs in your browser, so your sequences never leave your device.

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