>1et6A (A:) observed residues (from ATOM records)
glevdnnsllrniystivyeysdividfktshnlvtkkldvrdardffinsemdeyaand
fktgdkiavfsvpfdwnylskgkvtaytyggitpyqpknipvnlwingkqisvpyneist
nkttvtaqeidlkvrkfliaqhqlyssgssyksgrlvfhtkysfdlfyvgyrdkesifkv
ykdnksfnidkighldieids