>sp|Q39YP7|HISX_GEOMG Histidinol dehydrogenase OS=Geobacter metallireducens GN=hisD MKFLDIRDTNFDMEFAAILARGEETGREVEQVVLDIIADVRARGDEALLEYTRRFDRLEA DSVASLQVTEDEVDYAFARVKDEEIAALKLAVERVARFHEKQKQETWLSTGEPDILLGQM VTPLERVGIYVPGGKASYPSSVIMNAVPARVAGVGEVVMVAPTPGGEINPHVLVAARFSG VDRIFRLGGAQAVAALAYGTATVPKVDKITGPGNIYVATAKKLVFGQVGIDMIAGPSEIL VINDGSGTPAHIAADLLSQAEHDELASSILITTDRGFGERVAAEVERQLAELSRETIARR SWETYGAVIVAGSLDEAIAFSNRIAPEHLELAVTNPFDVLPKIRNAGAIFLGHFTPEAAG DYLAGPNHTLPTGGTARFFSPLSVDDFVKKSSIVYFSESGLNRLGGGIVRIAELEGLEAH GRSVSVRLKGEGEARK