Enter a tryptic peptide

An input peptide can be 5 to 50 residues long and can contain any number of miscleavages.

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Unipept will try to find exact matches in all UniProt records, equating leucine (L) and isoleucine (I) if you wish.

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All matched UniProt records and corresponding NCBI taxa are listed and visualised and the taxonomic lowest common ancestor is calculated.