>sp|C4KGZ7|DPHB_SULIK Diphthine synthase OS=Sulfolobus islandicus GN=dphB MSILSLVGLGISKKFITENAIDTLNNSDIIIFDKYTSRSCDINVDVLRRLVKGGKTLIEA DRSLLENNSKIIMDYLDKNYNVSIASIGDVLIATTHVSLLIEAKQRGHNVKVIPGISVHC YLISKSLLSSYKFGKSVTVTFPYNDFIDPTPYNVIKDNKERGLHTILYLDLKSEKAMTAN EALQILLRLEDKHRKNVLSKSDIVIVGARLGCDDEKIVALTVEEATLYDFGNTPHIIIIP GNLHYMEADAIKWMLMS