>3nf8B (B:) observed residues (from ATOM records)
spgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktvhtd
ngsnftsttvkaacwwagikqedgipynpqsqgviesmnkelkkiigqvrdqaehlktav
qmavfihnhkrkgysagerivdiiatdiq