PYRC_CALS8
ID PYRC_CALS8 Reviewed; 430 AA.
AC A4XKT2;
DT 18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2007, sequence version 1.
DT 03-AUG-2022, entry version 81.
DE RecName: Full=Dihydroorotase {ECO:0000255|HAMAP-Rule:MF_00220};
DE Short=DHOase {ECO:0000255|HAMAP-Rule:MF_00220};
DE EC=3.5.2.3 {ECO:0000255|HAMAP-Rule:MF_00220};
GN Name=pyrC {ECO:0000255|HAMAP-Rule:MF_00220}; OrderedLocusNames=Csac_1932;
OS Caldicellulosiruptor saccharolyticus (strain ATCC 43494 / DSM 8903 / Tp8T
OS 6331).
OC Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC Thermoanaerobacterales Family III. Incertae Sedis; Caldicellulosiruptor.
OX NCBI_TaxID=351627;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43494 / DSM 8903 / Tp8T 6331;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Kiss H., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Lykidis A., van de Werken H.J.G., Verhaart M.R.A.,
RA VanFossen A.L., Lewis D.L., Nichols J.D., Goorissen H.P., van Niel E.W.J.,
RA Stams F.J.M., Willquist K.U., Ward D.E., van der Oost J., Kelly R.M.,
RA Kengen S.M.W., Richardson P.;
RT "Genome sequence of the thermophilic hydrogen-producing bacterium
RT Caldicellulosiruptor saccharolyticus DSM 8903.";
RL Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the reversible cyclization of carbamoyl aspartate
CC to dihydroorotate. {ECO:0000255|HAMAP-Rule:MF_00220}.
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_00220};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00220};
CC Note=Binds 2 Zn(2+) ions per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00220};
CC -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC (S)-dihydroorotate from bicarbonate: step 3/3. {ECO:0000255|HAMAP-
CC Rule:MF_00220}.
CC -!- SIMILARITY: Belongs to the metallo-dependent hydrolases superfamily.
CC DHOase family. Class I DHOase subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_00220}.
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DR EMBL; CP000679; ABP67517.1; -; Genomic_DNA.
DR RefSeq; WP_011917453.1; NC_009437.1.
DR AlphaFoldDB; A4XKT2; -.
DR SMR; A4XKT2; -.
DR STRING; 351627.Csac_1932; -.
DR EnsemblBacteria; ABP67517; ABP67517; Csac_1932.
DR KEGG; csc:Csac_1932; -.
DR eggNOG; COG0044; Bacteria.
DR HOGENOM; CLU_015572_1_0_9; -.
DR OMA; QHAQEPR; -.
DR OrthoDB; 1319925at2; -.
DR UniPathway; UPA00070; UER00117.
DR Proteomes; UP000000256; 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 CDD; cd01317; DHOase_IIa; 1.
DR Gene3D; 2.30.40.10; -; 1.
DR HAMAP; MF_00220_B; PyrC_classI_B; 1.
DR InterPro; IPR006680; Amidohydro-rel.
DR InterPro; IPR004722; DHOase.
DR InterPro; IPR002195; Dihydroorotase_CS.
DR InterPro; IPR011059; Metal-dep_hydrolase_composite.
DR InterPro; IPR032466; Metal_Hydrolase.
DR Pfam; PF01979; Amidohydro_1; 1.
DR SUPFAM; SSF51338; SSF51338; 1.
DR SUPFAM; SSF51556; SSF51556; 1.
DR PROSITE; PS00483; DIHYDROOROTASE_2; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; Pyrimidine biosynthesis; Zinc.
FT CHAIN 1..430
FT /note="Dihydroorotase"
FT /id="PRO_0000325590"
FT ACT_SITE 306
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 61
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 63..65
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 63
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 95
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 153
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 153
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 180
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 233
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 279
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 306
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
FT BINDING 310
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00220"
SQ SEQUENCE 430 AA; 47394 MW; 75C5C16A7ED4318E CRC64;
MILIKNAQII NSLHDKVEKA DILIVDDKIK KIGKDIEENP EKMTIIDASG KVVMPSFTDI
HCHLREPGFE YKEDIKSGSR SAAAGGFTTI CCMPNTNPPV DNRAMVAYIK YRAREVSPIE
VLPVGAITKG LLGEELAEIG FMKEEGAIAI SDDGKCVMNA NLMKNALLYS RDFSIPVISH
CEDTNLSEGG QINLGYVSTI TGLRGIPREA ESVIIARDIL LAKETKSHLH ITHVSTKESV
RLIKMAKEWG VNVTADTCPH YISLTEEEVL GFNTNAKVNP PLRTQEDVEA LIEGLKEGVI
DCISTDHAPH HKDEKNVEFN LAASGTIGFE TAFSVLFTYL VEKNGFDIGK IVELLNHNPR
KIIGLSPNVL KEGEKANLVI VDLKKKWEVK EENIVSKSKN SVFLGKLLTS YVETVIYNGK
ILKKDGVLNC
