>1tk6A (A:) observed residues (from ATOM records)
stqknaratagevegsdalrmdadraeqcvdalnadlanvyvlyhqlkkhhwnvegaefr
dlhlflgeaaetaeevadelaervqalggvphaspetlqaeasvdvededvydirtslan
dmaiygdiieatrehtelaenlgdhatahmlreglieleddahhiehyleddtlvtqgal