>3npkA (A:) observed residues (from ATOM records)
lnlkelfihhleknlpkvesfhpffnealalmlkaggkhfraqlllsvvqsnkpellnqa
ldvalalefihtyslihddlpamdnadfrrgiptlhksydettailvgdalnteaflvls
hahlkdeikikliktlafnaglngmvigqaidcffedkrlslneleflhthktarliaaa
lkmgceicelnneesnqiyklglklglifqinddiidvtnsfvnllgleqaiktkenlln
eceqdleklneklaqmiqnliiqyl