>1uthB (B:) observed residues (from ATOM records)
alntletalttrdsfdpfastrtfnlamtdigemyfmpplmealaqraphiqistlrpga
gnlkedmesgavdlalgllpelqtgffqrrlfrhryvcmfrkdhpsakspmslkqfsele
hvgvvalntghgevdglleragikrrmrlvvphfiaigpilhstdliatvpqrfavrcev
pfglttsphpaklpdiainlfwhakynrdpgnmwlrqlfvelfsea