>3znlB (B:) observed residues (from ATOM records)
glfgaiagfieggwqgmvdgwygyhhsneqgsgyaadkestqkaidgvtnkvnsiidkmn
tqfeavgrefnnlerrienlnkkmedgfldvwtynaellvlmenertldfhdsnvknlyd
kvrlqlrdnakelgngcfefyhkcdnecmesvrngtydypqys