>1bisB (B:) observed residues (from ATOM records)
cspgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwpvktvht
dngsnftsttvkaacewagikqefgipynpqsqgviesmnkelkkiigqvrdqaehlkta
vqmavfihnkkrkggiggysagerivdiiatdiq