>1xx2A (A:) observed residues (from ATOM records)
pvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlfe
lgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplqv
pdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlkp
lkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmape
nvadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvaev
nppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal