>1xtiA (A:) observed residues (from ATOM records)
gfrdfllkpellraivdcgfehpsevqhecipqailgmdvlcqaksgmgktavfvlatlq
qlepvtgqvsvlvmchtrelafqiskeyerfskympnvkvavffgglsikkdeevlkknc
phivvgtpgrilalarnkslnlkhikhfildecdkmleqldmrrdvqeifrmtphekqvm
mfsatlskeirpvcrkfmqdpmeifvddetkltlhglqqyyvklkdneknrklfdlldvl
efnqvvifvksvqrcialaqllveqnfpaiaihrgmpqeerlsryqqfkdfqrrilvatn
lfgrgmdiervniafnydmpedsdtylhrvaragrfgtkglaitfvsdendakilndvqd
rfevniselpdeidissyieq