>2fk0R (R:) observed residues (from ATOM records)
glfgaiagfieggwqgmvdgwygyhhsneqgsgyaadkestqkaidgvtnkvnsiidkmn
tqfeavgrefnnlerrienlnkkmedgfldvwtynaellvlmenertldfhdsnvknlyd
kvrlqlrdnakelgngcfefyhkcdnecmesvrngtydypqyseearlkreeiss