>sp|Q8ZVR7|RIFK_PYRAE Riboflavin kinase OS=Pyrobaculum aerophilum GN=ribK MECKERRLIGDLIALSYVEGLPVAEAAKRLCVTRQGLYKLLKQLRNEGYVAEGPLIKITQ KGRDLLSSVLRDLLRYFNIASIRLIGRVISGLGEGAFYISLEGYRRAIEEKLGFTPFPGT LNIKLDPQYLPYRRYLDGLPGIVIPGFTNGLRTYGGVKAFKAKINGVEGAVVMPERTHHP TDVIEIIAPVKLRDALNLKDGDIVEVEILL