>1su2B (B:) SEQRES residues mehderthvpvelraagvvllnergdillvqekgipghpekaglwhipsgavedgenpqd aavreaceetglrvrpvkflgaylgrfpdgvlilrhvwlaepepgqtlapaftdeiaeas fvsredfaqlyaagqirmyqtklfyadalrekgfpalpv