Filter Protein
How to clean up a protein sequence
- Paste a sequence copied from anywhere, with numbers, spaces or other characters in it.
- Choose whether unknown letters are removed or replaced with X.
- Set the letter case and line length. Copy output or Download saves the result.
Frequently asked questions
Which letters are kept?
The 20 standard amino acids, B, Z, X, U (selenocysteine), O (pyrrolysine) and * for a stop.
Is my sequence uploaded?
No. Everything runs in your browser, so your sequences never leave your device.
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