>sp|Q8TXG3|HISX_METKA Histidinol dehydrogenase OS=Methanopyrus kandleri GN=hisD MRLLVRPEEEELERVLRRSEMDVTEVLPDVERIFEDVVERGDEALLEYTERFDGVKLEAE DLRVSEDDFEVARELVDERTVEALEEAAHRIEEFHRKTLPRVDRITFDVEGTECGLTLRP IPRVGCYVPGGRAAYPSTALMTVIPARVAGCREVVVCTPPADNDVRASPEVLVAVEIAGA DAVYRVGGAQAIAALAAGTETVLRVDKIVGPGNVYVTAAKLLAYSRGLTDVDMPAGPSEV FVIADDSANPDWLARDLIAQAEHDPHAAAVLATDSEEIARAVKERVEELLDAGIEREEIV LKALDRNGWIVVLDSLEECVRLANRYAPEHLQLCVENPEELLQDVENAGAVFVGHLTAVP FGDYATGPNHVLPTGGFARARGALGTWDFVKIIPIQRLREGDVERLAPIVEELAEREGLP NHAEAVRARRS