>sp|P0A7F4|PYRI_ECOL6 Aspartate carbamoyltransferase regulatory chain OS=Escherichia coli O6:H1 GN=pyrI MTHDNKLQVEAIKRGTVIDHIPAQIGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLSEDQVDQLALYAPQATVNRIDNYEVVGKSRPSLPERIDNVLVCPNSNCISHAEP VSSSFAVRKRANDIALKCKYCEKEFSHNVVLAN