This page is designed for performing extensive search against cell penetrating peptide database CPPsite 2.0. It allows user to search the literature used for extracting cell penetrating peptides. User can put pmid, author name, title of the paper/patent, abstract or the keywords used in the paper. Display page will give the full details of the paper. ALso we have provided the corresponding peptide id of that paper included in the database. Clicking on the partiular peptide id will give the full details of that peptide. If you need any help, please visit HELP page.