This module is developed for generating all possible mutant of a peptide by mutating single residue at a time. This module also predict wheather mutants can be a cell penetrating peptide or not. In summary this module allows to identify best mutant that have highest potency for being cell penetrating peptide. Server allow user to sort mutants based on their SVM score (or probability of being cell penetrating peptide) so user can select best mutant. In addition it allows user to further generate all possible mutants of a mutants. In summary, this module allow user to design best cell penetrating peptide by identifying most important mutation in users peptide.For more information see HELP page.