>1ixcB (B:) observed residues (from ATOM records)
mefrqlkyfiavaeagnmaaaakrlhvsqppitrqmqaleadlgvvllershrgieltaa
ghafledarrilelagrsgdrsraaargdvgelsvayfgtpiyrslplllrafltstpta
tvslthmtkdeqvegllagtihvgfsrffprhpgieivniaqedlylavhrsqsgkfgkt
ckladlraveltlfprggrpsfadeviglfkhagiepriarvvedataalaltmagaass
ivpasvaairwpdiafarivgtrvkvpiscifrkekqppilarfvehvr