>2y7rB (B:) observed residues (from ATOM records)
mdpfastrtfnlamtdigemyfmpplmealaqraphiqistlrpnagnlkedmesgavdl
algllpelqtgffqrrlfrhryvcmfrkdhpsakspmslkqfselehvgvvalntghgev
dglleragikrrmrlvvphfiaigpilhstdliatvpqrfavrcevpfglttsphpaklp
diainlfwhakynrdpgnmwlrqlfvelfsea