>sp|A6VJP1|DPHB_METM7 Diphthine synthase OS=Methanococcus maripaludis GN=dphB MLVMAGLGLYDERDVTLKTLDFAKKVDKIYAEFYTAILTGTSMEKIENTLQKPITVLDRE KVEYETNKLIEEAVDKDIMFLTAGDPMVATTHVDIAVEARKKGIEVVIINAPSIYSAIGI TGLQLYKFGKTTSVVFPEPNYFPETPYDVIKDNLKLGYHTLCLLDIQADKERFMTANEGL DALLKIEEKRNENVISGETYAAVVARAGSIKPGLYYGKIKDLINYDFGTPLHCVIIPGKL HFMEEDALKYLFENI