>3nsfA (A:) observed residues (from ATOM records)
aerptlpipdllttdarnriqltigagqstfggktattwgyngnllgpavklqrgkavtv
diynqlteettlhwhglevpgevdggpqgiippggkrsvtlnvdqpaatcwfhphqhgkt
grqvamglaglvvieddeilklmlpkqwgiddvpvivqdkkfsadgqidyqldvmtaavg
wfgdtlltngaiypqhaaprgwlrlrllngcnarslnfatsdnrplyviasdggllpepv
kvselpvlmgerfevlvevndnkpfdlvtlpvsqmgmaiapfdkphpvmriqpiaisasg
alpdtlsslpalpslegltvrklqlsmdpmldmmgmqmlmekygdqamagmhmnhggkfd
fhhankingqafdmnkpmfaaakgqyerwvisgvgdmmlhpfhihgtqfrilsengkppa
ahragwkdtvkvegnvsevlvkfnhdapkehaymahchllehedtgmmlgftvlqgdhgl