>sp|Q971V1|DPHB_SULTO Diphthine synthase OS=Sulfurisphaera tokodaii GN=dphB MPTLKLIGLGLSAKFVTREAIDEISKCNVVLFESYTSLSCDINLDFIKFLNKNVIIVDRK FIENNIKEIIKLLKEKEDVCIVTIGDPMIATTHVSLIVEVKDKGYNFKVIPGISVHCYII SKSMLSSYKFGKSVTITYPYNNKIDTTPYDVIYDNFIRGLHTILYLDLKEDKIMTAKEAV ELLIEMEKIKKQGLVSDDRIIIVGQRLGCDDEEVVALRLKEVFNYKFKEPPHIIVFPTDK LHFMEVEALKCLMK