>1du3D (D:) observed residues (from ATOM records) qrvaahitgtrgrsntalgrkinswessrsghsflsnlhlrngelvihekgfyyiysqty frfqeeikentkndkqmvqyiykytsypdpillmksarnscwskdaeyglysiyqggife lkendrifvsvtnehlidmdheasffgaflvg