>4nyfA (A:) observed residues (from ATOM records) sspgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktiht dngsnftsatvkaacdwagikqepqsqgvvesmnkelkkiigqvrdqaehlktavqmavf ihnkkrkggiggysagerivdiiatdiqt