==== Reference: Usmani SS, Bedi G, Samuel JS, Singh S, Kalra S, Kumar P, et al. (2017) THPdb: Database of FDA-approved peptide and protein therapeutics. PLoS ONE 12(7) e0181748.====

Welcome to Amino Acids Frequency page of THPdb

Query submission form for amino acid frequency calculation

This page is designed for searching peptides with desired frequency. Here, you may select frequency range for an amino acid. For example, if you wish to know all therapeutic peptides/proteins having more than four alanine residues, then you may select minimum value for alanine as 4. One of the major features of this page is that its output frequency table can be sorted on the basis of frequency of any amino acid. For more information see HELP page.
Amino Acid  Min  Max Amino Acid  Min  Max 
Alanine Cysteine
Aspartic acid Glutamic acid
Phenylalanine Glycine
Histidine Isoleucine
Lysine Leucine
Methionine Asparagine
Proline Glutamine
Arginine Serine
Threonine Valine
Tryptophan Tyrosine