>tr|J7R3B2|J7R3B2_ECOLX Dihydroorotase OS=Escherichia coli GN=pyrC MTAPSQVLKIRRPDDWHLHLRDGDMLKTVVPYTSEIYGRAIVMPNLAPPVTTVEAAVAYR QRILDAVPAGHNFTPLMTCYLTDSLDPNELERGFNEGVFTAAKLYPANATTNSSHGVTSI DAIMPVLERMEKIGMPLLVHGEVTHADIDIFDREARFIESVMEPLRQRLTALKVVFEHIT TKDAADYVRDGNERLAATITPQHLMFNRNHMLVGGVRPHLYCLPILKRNIHQQALRELVA SGFNRVFLGTDSAPHARHRKESSCGCAGCFNAPTALGSYATVFEEMNALQHFEAFCSVNG PQFYGLPVNDTFIELVREEQQVAESIALTDDTLVPFLAGETVRWSVKQ