>1xxrA (A:) observed residues (from ATOM records)
tqttgtsqtievglwggpggnawddgsytgireinlshgdaigafsviydlngqpftgpt
hpgnepsfktvkitldfpneflvsvsgytgvlarlatgkdvirsltfktnkktygpygke
egtpfslpienglivgfkgrsgfvvdaigfhlsl