>2r6xA (A:) observed residues (from ATOM records)
kiytkngdkgqtriigkqilykndprvaaygevnelnswvgytkslinshtqvlsnelee
iqqllfdcghdlatpadderhfkfkqeqptvwleekidnytqvvpkfilpggtqlasalh
vartitrraerqivqlmreeqinqdvlifinrlsdyffaaaryanyleqqpdmlyr