>2b2uB (B:) observed residues (from ATOM records)
eefetierfmdcrigrkgatgatttiyaveadgdpnagfekkepgeiqylikwkgwshih
ntweteetlkqqnvrgmkkldnykkkdqetkrwlknaspedveyyncqqeltddlhkqyq
ivgriiahsnqkagypdyyckwqglpysecswedgaliskkfqacideyfsr