>tr|A0A0H3EQS6|A0A0H3EQS6_ECO8N Aspartate carbamoyltransferase regulatory chain OS=Escherichia coli O83:H1 GN=pyrI MTHDNKLQVEAIKRGTVIDHIPAQIGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLSEDQVDQLALYAPQATVNRIDNYEVVGKSRPSLPERIDNVLVCPNSNCISHAEP VSSSFAVRKRANDIALKCKYCEKEFSHNVVLAN