>1rtyB (B:) observed residues (from ATOM records)
mklytdslrvesygtidelnsfiglalaelsgqpgfedltaelltiqhelfdcggdlaiv
terkdyklteesvsfletridaytaeapelkkfilpggskcasllhiartitrraerrvv
almkseeihetvlrylnrlsdyffagarvvnarsgigdveyer