>sp|Q4JA46|KHSE_SULAC Homoserine kinase OS=Sulfolobus acidocaldarius GN=thrB MLIKAYSSSANLGAGFDILALAHNAFEDSVEMEAIPNSTLQVLVTGDGVPNEVDKNSASY AVYRLLSELDVKVKVKMKVIKGIPAGLGLGSSGASAVAAVVGVNNLLKLGLDKQELVRAS MIGEIASSGSAHPDNVAASVYGGVVAVLNTEPVTVSPIPVNLNFSLLLFIPVLQLKDKTK KAREMLPRNVELGKMVRNSRYLSSTILGLVKGDRELLRLGLNDEIVEVARSPLFPHYEKL KKISIENNAIGACVSGAGPTIAVFVDEYSDKNKIKKEGLEICETYSQKCLVKEAKIAGGA WVERWN