PYRC_ECOL6
ID PYRC_ECOL6 Reviewed; 348 AA.
AC Q8FIR2;
DT 22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 107.
DE RecName: Full=Dihydroorotase {ECO:0000255|HAMAP-Rule:MF_00219};
DE Short=DHOase {ECO:0000255|HAMAP-Rule:MF_00219};
DE EC=3.5.2.3 {ECO:0000255|HAMAP-Rule:MF_00219};
GN Name=pyrC {ECO:0000255|HAMAP-Rule:MF_00219}; OrderedLocusNames=c1329;
OS Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=199310;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CFT073 / ATCC 700928 / UPEC;
RX PubMed=12471157; DOI=10.1073/pnas.252529799;
RA Welch R.A., Burland V., Plunkett G. III, Redford P., Roesch P., Rasko D.,
RA Buckles E.L., Liou S.-R., Boutin A., Hackett J., Stroud D., Mayhew G.F.,
RA Rose D.J., Zhou S., Schwartz D.C., Perna N.T., Mobley H.L.T.,
RA Donnenberg M.S., Blattner F.R.;
RT "Extensive mosaic structure revealed by the complete genome sequence of
RT uropathogenic Escherichia coli.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:17020-17024(2002).
CC -!- FUNCTION: Catalyzes the reversible cyclization of carbamoyl aspartate
CC to dihydroorotate. {ECO:0000255|HAMAP-Rule:MF_00219}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(S)-dihydroorotate + H2O = H(+) + N-carbamoyl-L-aspartate;
CC Xref=Rhea:RHEA:24296, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30864, ChEBI:CHEBI:32814; EC=3.5.2.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00219};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00219};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00219};
CC -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC (S)-dihydroorotate from bicarbonate: step 3/3. {ECO:0000255|HAMAP-
CC Rule:MF_00219}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00219}.
CC -!- SIMILARITY: Belongs to the metallo-dependent hydrolases superfamily.
CC DHOase family. Class II DHOase subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_00219}.
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DR EMBL; AE014075; AAN79802.1; -; Genomic_DNA.
DR RefSeq; WP_000126520.1; NC_004431.1.
DR AlphaFoldDB; Q8FIR2; -.
DR SMR; Q8FIR2; -.
DR STRING; 199310.c1329; -.
DR EnsemblBacteria; AAN79802; AAN79802; c1329.
DR KEGG; ecc:c1329; -.
DR eggNOG; COG0418; Bacteria.
DR HOGENOM; CLU_041558_1_0_6; -.
DR OMA; TLHHISM; -.
DR BioCyc; ECOL199310:C1329-MON; -.
DR UniPathway; UPA00070; UER00117.
DR Proteomes; UP000001410; Chromosome.
DR GO; GO:0004151; F:dihydroorotase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0044205; P:'de novo' UMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0019856; P:pyrimidine nucleobase biosynthetic process; IEA:InterPro.
DR CDD; cd01294; DHOase; 1.
DR HAMAP; MF_00219; PyrC_classII; 1.
DR InterPro; IPR006680; Amidohydro-rel.
DR InterPro; IPR004721; DHOdimr.
DR InterPro; IPR002195; Dihydroorotase_CS.
DR InterPro; IPR032466; Metal_Hydrolase.
DR PANTHER; PTHR43137; PTHR43137; 1.
DR Pfam; PF01979; Amidohydro_1; 1.
DR PIRSF; PIRSF001237; DHOdimr; 1.
DR SUPFAM; SSF51556; SSF51556; 1.
DR TIGRFAMs; TIGR00856; pyrC_dimer; 1.
DR PROSITE; PS00482; DIHYDROOROTASE_1; 1.
DR PROSITE; PS00483; DIHYDROOROTASE_2; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Pyrimidine biosynthesis; Zinc.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..348
FT /note="Dihydroorotase"
FT /id="PRO_0000147206"
FT ACT_SITE 251
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 17
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 19..21
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 19
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 45
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 103
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 103
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 140
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 140
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 178
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 223
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 251
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 255
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 267
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT MOD_RES 103
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
SQ SEQUENCE 348 AA; 38760 MW; 693414ADEEE3646D CRC64;
MTAPSQVLKI RCPDDWHLHL RDGDMLKTVV PYTSEIYGRA IVMPNLAPPV TTVEAAVAYR
QRILDAVPAG HDFTPLMTCY LTDSLDPNEL ERGFNEGVFT AAKLYPANAT TNSSHGVTSV
DAIMPVLERM EKIGMPLLVH GEVTHADIDI FDREARFIES VMEPLRQRLT ALKVVFEHIT
TKDAADYVRD GNERLAATIT PQHLMFNRNH MLVGGVRPHL YCLPILKRNI HQQALRELVA
SGFNRVFLGT DSAPHARHRK ESSCGCAGCF NAPTALGSYA TVFEEMNALQ HFEAFCSVNG
PQFYGLPVND TFIELVREEQ QVAESIALTD DTLVPFLAGE TVRWSVKQ
