>4xtjA (A:) observed residues (from ATOM records)
sydsssikvlkgldavrkrpgmyigdtddgtglhhmvfevvdnaidealaghckeiivti
hadnsvsvqddgrgiptgihpeegvsaaevimtvlhaggkfddnsykvsgglhgvgvsvv
nalsqklelviqregkihrqiyehgvpqaplavtgetektgtmvrfwpsletftnvtefe
yeilakrlrelsflnsgvsirlrdkrdgkedhfhyeggikafveylnknktpihpnifyf
stekdgigvevalqwndgfqeniycftnnipqrdggthlagfraamtrtlnaymdkegys
satgddaregliavvsvkvpdpkfssqtkdklvssevksaveqqmnellaeyllenptda
kivvgkiidaarareaarraremt