>1zrfA (A:) observed residues (from ATOM records)
tdptlewflshchihkypskstlihqgekaetlyyivkgsvavlikdeegkemilsylnq
gdfigelglfeegqersawvraktacevaeisykkfrqliqvnpdilmrlsaqmarrlqv
tsekvgnlafldvtgriaqtllnlakqpdamthpdgmqikitrqeigqivgcsretvgri
lkmledqnlisahgktivvygtr