>sp|O26327|HISX_METTH Histidinol dehydrogenase OS=Methanothermobacter thermautotrophicus GN=hisD MLMKITEFDYRRISELVERARLDVDDVLGPVADIISMVRDGGDDALRELTGRFDGVTVEN FRVSREEIEEAHKNLEPGVKEALREAASNIEEFHRMQMPSGWMSEVRPGVMAGQLVRPID SVGCYIPGGRAVYPSTILMTVIPARIAGVERIVCCTPPAQDGSVPDAVLVAADMAGASEI YRVGGAQAVAAMAYGTETIRPVDKIVGPGNIFVTAAKKLVYGEVDIDFPAGPSEVLIIAD ETASPEYIALEILAQAEHDPQAASVLVTDSRDLALEVKEMVHENIKYMERANIIRESLER YGMIVLTADIDEAVDFSNAYAPEHLVIMTDSPEETLEGIRNAGSIFLGELSPVAAGDYGS GTNHVLPTSGCARMYSGLSTESFIKKPTVQRITKEGLRNLQGTVLKLAEYEGLHAHAESF RRRLRD