User can extract antihypertensive peptides that have desired frequency of certain types of residues like, positive charge, negative charge, polar residues.User can set the desired range for that property and peptides will be sorted e.g. if we give a range for aromatic property between (2-8), all peptides between this range will be listed in the output table. User can give combination of properties like aromatic property and positive charge, within the desired range.


1.To search for peptides based on physico-chemical frequency, select the property like aliphatic or aromatic, etc.

2.User can enter the minimum number of amino acid residues that should be there in the result sequences for the chosen property .

3.Also, enter the maximum number of residues for the chosen property.

4.Click on the submit button to get the result.