>1t72B (B:) observed residues (from ATOM records)
gggggmklfkeleetkeqvikmaklvqeaidkatealnkqnvelaeevikgddtidllev
dierrcirmialyqpeagdlrmimgiykivsdlermgdeaeniaeraillaeepplkpyv
ninfmseivkemvndsvisfiqqdtllakkviekddtvdelyhqlerelmtyvledprni
kramhlsfvarhyeriadhaenvaeaaiylsege