>1tk6C (C:) observed residues (from ATOM records)
aratagevegsdalrmdadraeqcvdalnadlanvyvlyhqlkkhhwnvegaefrdlhlf
lgeaaetaeevadelaervqalggvphaspetlqaeasvdvededvydirtslandmaiy
gdiieatrehtelaenlgdhatahmlreglieleddahhiehyleddtlvtqgal