>1tzkB (B:) observed residues (from ATOM records)
mnlqrfprypltfgptpiqplarlskhlggkvhlyakredcnsglafggnktrkleylip
ealaqgcdtlvsiggiqsnqtrqvaavaahlgmkcvlvqenwvnysdavydrvgniqmsr
ilgadvrlvrswedalesvraaggkpyaipagcsdhplgglgfvgfaeevraqeaelgfk
fdyvvvcsvtgstqagmvvgfaadgradrvigvdasakpaqtreqitriarqtaekvgle
rdimradvvlderfagpeyglpnegtleairlcartegmltdpvyegksmhgmiemvrng
efpegsrvlyahlggvpalngysfifrdg