Keywords: Alpha sheet bonding schematic-color.svg Schematic diagram of hydrogen bonding in the alpha sheet protein structural motif Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 and Inkscape ;Legend red w Oxygen atoms blue w Nitrogen atoms Own work after Pauling L Corey R B 1951 The pleated sheet a new layer configuration of polypeptide chains Proc Natl Acad Sci USA 37 251 “6 PMID 14834147 <br>Created by uploader upon request by Opabinia regalis 2007-01-20 Fvasconcellos Peptides Protein folding |