>3zt1B (B:) SEQRES residues mgsshhhhhhsspgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllkla grwpvktvhtdngsnftsttvkaacwwagikqedgipynpqsqgviesmnkelkkiigqv rdqaehlktavqmavfihnhkrkggiggysagerivdiiatdiqtke