>4cfaB (B:) observed residues (from ATOM records)
spgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktvhtd
ngsnftsttvkaacwwagikqedgipynpqsqgviesmnkelkkiigqvrdqaehlktav
qmavfihnhkrkgysagerivdiiatdiq