>5ytoB (B:) SEQRES residues mkhhhhhhpmsdydipttenlyfqgamatkavcvlkgdgpvqgiinfeqkesngpvkvwg sikglteglhgfhvhefgdntagctsagphfnplsrkhggpkdeerhvgdlgnvtadkdg vadvsiedsvislsgdhciigrtlvvhekaddlgkggneestktgnagsrlacgvigiaq