>sp|Q21CK7|HIS7_RHOPB Imidazoleglycerol-phosphate dehydratase OS=Rhodopseudomonas palustris GN=hisB MRTATIKRKTKETAIEVTVDLDGTGASNIATGIGFFDHMLDLLARHSRIDITVKAVGDLH IDYHHTTEDVGIALGQAVKQALGNMAGITRYAGIHLPMDETLTRVVIDISGRPTLVFKAE FPRDKIGEFDTELVREWFNAFAMNAGVTLHVETLYGENSHHIAESCFKGLARVLRAAVAI DPSAAGEVPSTKGQLGG