>2c18A (A:) observed residues (from ATOM records)
ftpanraypytrlrrnrrddfsrrlvrenvltvddlilpvfvldgvnqresipsmpgver
lsidqllieaeewvalgipalalfpvtpvekksldaaeaynpegiaqratralrerfpel
giitdvaldpftthgqdgildddgyvlndvsidvlvrqalshaeagaqvvapsdmmdgri
gairealesaghtnvrvmaysakyasayygpfrdavgsasnlgkgnkatyqmdpansdea
lhevaadlaegadmvmvxpgmpyldivrrvkdefraptfvyqvsgeyamhmgaiqngwla
esvilesltafkragadgiltyfakqaaeqlrrg