>sp|A6VG49|PYRI_METM7 Aspartate carbamoyltransferase regulatory chain OS=Methanococcus maripaludis GN=pyrI MKMELKVKPIENGTVIDHISGSKALKVYKILNIEEKLPMTIALNVPSKKGVMKDILKIEG LELTKEDVNKIALISPDATINIIKEGIVIKKFKVDLPKRIDGIIKCTNPNCITNKENIDG KFSIEQKNTLKIRCEYCEKFINSIIISK