>1w56B (B:) observed residues (from ATOM records)
anraypytrlrrnrrddfsrrlvrenvltvddlilpvfvldgvnqresipsmpgverlsi
dqllieaeewvalgipalalfpvtpvekksldaaeaynpegiaqratralrerfpelgii
tdvclcpftthgqdgildddgyvlndvsidvlvrqalshaeagaqvvapsdmmdgrigai
realesaghtnvrvmaysakyasayygpfrdavgsnkatyqmdpansdealhevaadlae
gadmvmvkpgmpyldivrrvkdefraptfvyqvsgeyamhmgaiqngwlaesvileslta
fkragadgiltyfakqaaeqlrrg