>4f6rD (D:) observed residues (from ATOM records)
gsdlgkklleaaragqddevrilmangadvnaeddsgktplhlaaikghleivevllkhg
advnaadkmgdtplhlaalyghleivevllkngadvnatdtygftplhlaadaghleive
vllkygadvnaqdkfgktafdisidngnedlaeilqkln