Welcome to the PPP webserver! This program is designed to compare your sequence against protein segments or complete structures from the RCSB PDB known to form PPII helices, providing detailed outputs on the detected motifs, their aligment details and similarity scores. It also identifies specific patterns of residues characteristic of PPII helices. With this tool, you can determine whether a protein sequence, or part of it, has the potential to adopt a PPII helical conformation. Simply input your sequence and some parameters to get started.