>1xx2B (B:) observed residues (from ATOM records)
pvsekqlaevvantitplmkaqsvpgmavaviyqgkphyytfgkadiaankpvtpqtlfe
lgsisktftgvlggdaiargeislddavtrywpqltgkqwqgirmldlatytagglplqv
pdevtdnasllrfyqnwqpqwkpgttrlyanasiglfgalavkpsgmpyeqamttrvlkp
lkldhtwinvpkaeeahyawgyrdgkavrvspgmldaqaygvktnvqdmanwvmanmape
nvadaslkqgialaqsrywrigsmyqglgwemlnwpveantvvegsdskvalaplpvaev
nppappvkaswvhktgstggfgsyvafipekqigivmlantsypnparveaayhileal