>2ypgB (B:) observed residues (from ATOM records) glfgaiagfiengwegmidgwygfrhqnsegtgqaadlkstqaaidqingklnrviektn ekfhqiekefsevegriqdlekyvedtkidlwsynaellvalenqhtidltdsemnklfe ktrrqlrenaeemgngcfkiyhkcdnaciesirngtydhdvyrdealnnrfqi