>1RU1_1|Chains A, B|2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase|Escherichia coli (562) TVAYIAIGSNLASPLEQVNAALKALGDIPESHILTVSSFYRTPPLGPQDQPDYLNAAVALETSLAPEELLNHTQRIELQQGRGGPRTLDLDIMLFGNEVINTERLTVPHYDMKNRGFMLWPLFEIAPELVFPDGEMLRQILHTRAFDKLNKW