Welcome to Functional Residues Composition page of CPPsite 2.0

This page allows the user to search cell penetrating peptides which have desired composition of functional residues like composition of charged residues. This page assists the user to search the range of composition of amino acids with different physical properties (e.g. Aliphatic, Aromatic, Negatively charged, Positively charged, Polar, Hydrophobic and Neutral amino acids) present in CPPsite 2.0. For more information see HELP page.
Property of Amino AcidsComposition Range
Minimum  Maximum 
Aliphatic
Aromatic
Negative charge
Positive charge
Polar
Hydrophobic
Neutral