Welcome to Advance Modification Module for Beginners

It provides an easy alternative to incorporate multiple modifications (non-natural, PTM, D-amino acids, cyclization etc.) at different positions in the peptide. A user only needs to enter the peptide sequence and his/her email address. After submission, a user friendly interface in the tabular form is displayed in which amino acids of peptide sequence are present in one column and the other columns contain dropdown menu for incorporating different modifications. For more information click help

Peptide Sequence Submission Form

Peptide sequence in plain text format                  


If you are using PEPstrMOD, please cite the following articles:
i) Singh, S., Singh, H., Tuknait, A., Chaudhary, K., Singh, B., Kumaran, S. and Raghava, G.P.S. (2015) PEPstrMOD: structure prediction of peptides containing natural, non-natural and modified residues. Biology Direct 10:73.
ii) Kaur, H., Garg, A. and Raghava, G.P.S. (2007) PEPstr: A de novo method for tertiary structure prediction of small bioactive peptides. Protein Pept Lett. 14:626-30.
Click Here for PEPstrMOD Manual