>1tk1A (A:) observed residues (from ATOM records)
rnlpirqqmealirrkqaeitqglesidtvkfhagggtsmviqdgttfekggvnvsvvyg
qlspaavsamkadhkdgvkffacglsmvihpvnphaptthlnyryfetwnqdgtpqtwwf
gggadltpsylyeedgqlfhqlhkdaldkhdtalyprfkkgiggiffddyderdpqeilk
mvedcfdaflpsyltivkrrkdmpytkeeqqwqairrgr