>sp|Q9HHN3|PYRI_HALSA Aspartate carbamoyltransferase regulatory chain OS=Halobacterium salinarum GN=pyrI MSSDQHLQVSKIQAGTVIDHIPAGQALQVLQILGTNGASDDQITVGMNVTSERHHRKDIV KIEGRELSQDEVDVLSLIAPDATINIVRDYEVDEKRRVDRPDVVAGVLSCPNPNCITAND EPVRSGFDVLDDGMRCQYCEQIVSEDIPSLIDPE