>4ceeB (B:) observed residues (from ATOM records) spgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktvhtd ngsnftsttvkaacwwagikqedgipynpqsqgviesmnkelkkiigqvrdqaehlktav qmavfihnhkrkgysagerivdiiatdiqt