>1rxxB (B:) observed residues (from ATOM records)
tklgvhseagklrkvmvcspglahqrltpsncdellfddviwvnqakrdhfdfvtkmrer
gidvlemhnlltetiqnpealkwildrkitadsvglgltselrswlesleprklaeylig
gvaaddlpaseganilkmyreylghfllpplpntqftrdttcwiyggvtlnpmywparrq
etllttaiykfhpefanaefeiwygdpdkdhgsstleggdvmpigngvvligmgerssrq
aigqvaqslfakgaaervivaglpkaamhldtvfsfcdrdlvtvfpevvkeivpfslrpd
psspygmnirreektflevvaeslglkklrvvetggnreqwddgnnvvclepgvvvgydr
ntytntllrkagvevitisaselgrgrggghcmtcpivrdpidy