PYRC_NITEC
ID PYRC_NITEC Reviewed; 345 AA.
AC Q0AFI1;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 17-OCT-2006, sequence version 1.
DT 03-AUG-2022, entry version 87.
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=Neut_1659;
OS Nitrosomonas eutropha (strain DSM 101675 / C91 / Nm57).
OC Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC Nitrosomonadaceae; Nitrosomonas.
OX NCBI_TaxID=335283;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 101675 / C91 / Nm57;
RX PubMed=17991028; DOI=10.1111/j.1462-2920.2007.01409.x;
RA Stein L.Y., Arp D.J., Berube P.M., Chain P.S., Hauser L., Jetten M.S.,
RA Klotz M.G., Larimer F.W., Norton J.M., Op den Camp H.J.M., Shin M., Wei X.;
RT "Whole-genome analysis of the ammonia-oxidizing bacterium, Nitrosomonas
RT eutropha C91: implications for niche adaptation.";
RL Environ. Microbiol. 9:2993-3007(2007).
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; CP000450; ABI59901.1; -; Genomic_DNA.
DR RefSeq; WP_011634707.1; NC_008344.1.
DR AlphaFoldDB; Q0AFI1; -.
DR SMR; Q0AFI1; -.
DR STRING; 335283.Neut_1659; -.
DR MEROPS; M38.A02; -.
DR EnsemblBacteria; ABI59901; ABI59901; Neut_1659.
DR KEGG; net:Neut_1659; -.
DR eggNOG; COG0418; Bacteria.
DR HOGENOM; CLU_041558_1_0_4; -.
DR OMA; TLHHISM; -.
DR OrthoDB; 1319925at2; -.
DR UniPathway; UPA00070; UER00117.
DR Proteomes; UP000001966; 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 CHAIN 1..345
FT /note="Dihydroorotase"
FT /id="PRO_1000024025"
FT ACT_SITE 250
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 14
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 16..18
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 16
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 42
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 102
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 102
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 139
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 139
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 177
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 222
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 250
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 254
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT BINDING 266
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
FT MOD_RES 102
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00219"
SQ SEQUENCE 345 AA; 38476 MW; 0AD34C94361246F8 CRC64;
MTNKLTFTRP DDWHLHLRDG KAMQSVLPDT ARRFARAMIM PNLKLPVVTT EQAAAYRARI
LSALPQELVG QFEPLMTLYL TDTTTPEEIS RAKASGIVQA VKLYPAGATT HSDAGVTDID
RCKATLAMME KLDMPLLVHG EVVDPAVDIF DREKIFIDRV LIPLLQRFPG LRVVFEHITT
REAVEFVQSI SNRIAATITA HHLMLNRNAL FTGGLQPHHY CLPVLKREIH RQALVAAATS
GHSRFFLGTD SAPHPLKDKE SACGCAGIYS AHAAIEFYAE IFEQAGRLDR LEAFASFYGP
DFYGLPRNTD QISLSKESWQ IPGEVEFGGD RLVPLRAGEQ VCWRL
