>tr|D2ACS4|D2ACS4_SHIF2 Dihydroorotase OS=Shigella flexneri serotype X GN=pyrC MTAPSQVLKIRRPDDWHLHLRDGDMLKTVVPYTSEIYGRAIVMPNLAPPVTTVEAAVAYR QRILDAVPAGHDFTPLMTCYLTDSLDPNELERGFNEAVFTAAKLYPANATTNSSHGVTSI DAIMPVLERMEKIGMPLLVHGEVTHADIDIFDREARFIESVMEPLRQRLTALKVVFEHIT TKDAADYVRDGNERLAATITPQHLMFNRNHMLVGGVRPHLYCLPILKRNIHQQALRELVA SGFNRVFLGTDSAPHARHRKESSCGCAGCFNAPTALGSYATVFEEMNALQHFEAFCSVNG PQFYGLPVNDTFIELVREEQQVAESIALTDDTLVPFLAGETVRWSVKQ