>tr|A0A2C9P4M7|A0A2C9P4M7_SALET Aspartate carbamoyltransferase regulatory chain OS=Salmonella enterica subsp. enterica serovar Macclesfield str. S-1643 GN=pyrI MTHDNKLQVEAIKCGTVIDHIPAQVGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLTDEQVNQLALYAPQATVNRIDNYDVVGKSRPSLPERINNVLVCPNSNCISHAEP VSSSFAVKKRANDIALKCKYCEKEFSHNVVLAN