>1nn1A (A:) observed residues (from ATOM records)
rrgalivlegvdragkstqsrklvealcaaghraellrfpersteigkllssylqkksdv
edhsvhllfsanrweqvplikeklsqgvtlvvdryafsgvaftgakenfsldwckqpdvg
lpkpdlvlflqlqladaakrgafgheryengafqeralrcfhqlmkdttlnwkmvdasks
ieavhedirvlsedaiatatekplgelwk