>6z6uY (Y:) observed residues (from ATOM records)
stsqvrqnyhqdseaainrqinlelyasyvylsmsyyfdrddvalknfakyflhqsheer
ehaeklmklqnqrggriflqdiqkpdcddwesglnamecalhleknvnqsllelhklatd
kndphlcdfiethylneqvkaikelgdhvtnlrkmgapesglaeylfdkhtlg