>tr|A0A3V7VQ27|A0A3V7VQ27_SALEB Aspartate carbamoyltransferase regulatory chain OS=Salmonella paratyphi B GN=pyrI MTHDNKLQVEAIKCGTVIDHIPAQVGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLTEEQVNQLALYAPQATVNRIDNYDVVGKSRPSLPERINNVLVCPNSNCISHAEP VSSSFAVKKRANDIALKCKYCEKEFSHYVVLAN