Peptide Sequence Builder

This tool allows to construct peptide sequence and calculate molecular weight and molecular formula.

Please select L or D isomer of an amino acid and C-terminus

Alanine

Arginine

Asparagine

Aspartic Acid

Cysteine

Glutamine

Glutamic acid

Glycine

Histidine

Isoleucine

Leucine

Lysine

Methionine

Phenylalanine

Proline

Serine

Threonine

Tryptophan

Tyrosine

Valine

Peptide Sequence(N =>C):
Three Letter:

One Letter:

Molecular Weight:
Molecular Formula: