>sp|Q3YXK0|RIBB_SHISS 3,4-dihydroxy-2-butanone 4-phosphate synthase OS=Shigella sonnei GN=ribB MNQTLLSSFGTPFERVENALAALREGRGVMVLDDEDRENEGDMIFPAETMTVEQMALTIR HGSGIVCLCITEDRRKQLDLPMMVENNTSAYGTGFTVTIEAAEGVTTGVSAADRITTVRA AIADGAKPSDLNRPGHVFPLRAQAGGVLTRGGHTEATIDLMTLAGFKPAGVLCELTNDDG TMARAPECIEFANKHNMALVTIEDLVAYRQAHERKAS