>tr|A0A4P7TQR6|A0A4P7TQR6_SHIFM Aspartate carbamoyltransferase regulatory chain OS=Shigella flexneri serotype 5a GN=pyrI MTHDNKLQVEAIKRGTVIDHIPAQIGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLSEEQVDQLALYAPQATVNRIDNYEVVGKSRPSLPERIDNVLVCPNSNCISHAEP VSSSFAVRKRANDIALKCKYCEKEFSHNVVLAN