>sp|Q577Z8|PYRB_BRUAB Aspartate carbamoyltransferase catalytic subunit OS=Brucella abortus biovar 1 GN=pyrB MTNQTVSPLFPHRHLLGIKGLSPLDILCLLDLADQEIAVSRQPEKKKSVLRGRTQINLFF EASTRTQSSFELAGKRLGADVMNMSVGNSSVKKGETLIDTAMTLNAMQPDILVIRHASAG AAALLAQKVGCSVVNAGDGAHEHPTQALLDALTIRRAKGQIENLIVAICGDVLHSRVARS NILLLNALGARVRVVAPSTLLPAGMADMSVEVFNSMEEGLKDADVVMMLRLQRERMAGSF VPSVREYFHFYGLDREKLKFAKPDALVMHPGPMNRGVEIASDVADGPQSVIQQQVEMGVA VRMAVMEALLDPRRNPGNGEPA