>4amgB (B:) observed residues (from ATOM records)
qsmralfitspglshilptvplaqalralghevryatggdiravaeaglcavdvspgvny
aklfvpddpmhseglgegffaemfarvsavavdgalrtarswrpdlvvhtptqgagplta
aalqlpcvelplgpadsepglgalirramskdyerhgvtgeptgsvrltttppsveallp
edrrspgawpmryvpynggavlpdwlppaagrrriavtlgsidalsggiaklaplfseva
dvdaefvltlgggdlallgelpanvrvvewiplgalletcdaiihhggsgtlltalaagv
pqcviphgtnrdvltglgigfdaeagslgaeqcrrllddaglreaalrvrqemsempppa
etaaklvala