>2d4rA (A:) observed residues (from ATOM records)
pevraeryipappervyrlakdleglkpylkeveslevvaregartrsrwvavamgkkvr
wleeeewddenlrnrffspegdfdryegtwvflpegegtrvvltltyeltipifggllrk
lvqklmqenvesllkgleervlaass