The Three to One tool converts three letter amino acid peptide sequences to single letter amino acid peptide sequences.

Blank spaces, digits and hyphens are removed automatically.
Non-standard triplets are ignored.

The One to Three tool converts single letter amino acid peptide sequences to three letter amino acid peptide sequences.

Input the Amino Acid Sequence:

(Case insensitive, all symbols, except standard symbols of amino acids and stop-codons (\”*\”, \”***\” and \”end\”) are ignored.

Please enter only one sequence at a time.