Histidinol dehydrogenase hisD Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine (By similarity). MLTIKNWQLLSENDKKLCLSRPRQSSAIKENVLEIINQVQLSGDKALYDLTKQFDRVNLQYLQVPQEKIEQANIPKNALNAITQAIGTISSYHQSLLPENTEISTASGITIRNVYRPIQKVGLYVPGGNKTPLVSSLLMQAIPAKVAGCPIKVLCTPPDAEGEINEHILVAARLCGIDTIYAIGGAQAIAAMAYGTESVIKVDKIFGPGNSYVTQAKTLVAIDADGAAIDMPAGPSEVMILADTEANPEFIAADLLAQAEHGPDSQVILICDECELANQVNQQLEIQMSYLSRIEFIKRSLANSRIIICSNQSEQLDIINSYAPEHLIINRKNPEPWVEKIVAAGTVFLGSWAAETMGDYVTGSNHVLPTSGFARNHSGLSTLDFMTRFTVQAINQEAIRNLGPAAMTLAELEGLDAHANAVQIRLNTLGD HISX_LEGPH 431 lpg1199