>4ovlA (A:) observed residues (from ATOM records) spgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktvhtd ngsnftsttvkaacwwagikqedgipynpqsqgviesmnkelkkiigqvrdqaehlktav qmavfihnhkrkgysagerivdiiatdiq