>2r6xB (B:) observed residues (from ATOM records)
iytkngdkgqtriiqilykndprvaaygevnelnswvgytkslinshtqvlsneleeiqq
llfdcghdlatprhsfkfkqeqptvwleekidnytqvvpavkkfilpggtqlasalhvar
titrraerqivqlmreeqinqdvlifinrlsdyffaaaryanyleqqpdmlyr