ID   PYRDA_SULSY             Reviewed;         311 AA.
AC   B2V726;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Putative dihydroorotate dehydrogenase A (fumarate);
DE            Short=DHOD A;
DE            Short=DHODase A;
DE            Short=DHOdehase A;
DE            EC=1.3.98.1;
GN   Name=pyrD; OrderedLocusNames=SYO3AOP1_0163;
OS   Sulfurihydrogenibium sp. (strain YO3AOP1).
OC   Bacteria; Aquificae; Aquificales; Hydrogenothermaceae;
OC   Sulfurihydrogenibium; unclassified Sulfurihydrogenibium.
OX   NCBI_TaxID=436114;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=YO3AOP1;
RX   PubMed=19136599; DOI=10.1128/jb.01645-08;
RA   Reysenbach A.-L., Hamamura N., Podar M., Griffiths E., Ferreira S.,
RA   Hochstein R., Heidelberg J., Johnson J., Mead D., Pohorille A.,
RA   Sarmiento M., Schweighofer K., Seshadri R., Voytek M.A.;
RT   "Complete and draft genome sequences of six members of the Aquificales.";
RL   J. Bacteriol. 191:1992-1993(2009).
CC   -!- FUNCTION: Catalyzes the conversion of dihydroorotate to orotate with
CC       fumarate as the electron acceptor. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-dihydroorotate + fumarate = orotate + succinate;
CC         Xref=Rhea:RHEA:30059, ChEBI:CHEBI:29806, ChEBI:CHEBI:30031,
CC         ChEBI:CHEBI:30839, ChEBI:CHEBI:30864; EC=1.3.98.1;
CC   -!- COFACTOR:
CC       Name=FMN; Xref=ChEBI:CHEBI:58210; Evidence={ECO:0000250};
CC       Note=Binds 1 FMN per subunit. {ECO:0000250};
CC   -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the dihydroorotate dehydrogenase family. Type 1
CC       subfamily. {ECO:0000305}.
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DR   EMBL; CP001080; ACD65808.1; -; Genomic_DNA.
DR   RefSeq; WP_012458898.1; NC_010730.1.
DR   AlphaFoldDB; B2V726; -.
DR   SMR; B2V726; -.
DR   STRING; 436114.SYO3AOP1_0163; -.
DR   EnsemblBacteria; ACD65808; ACD65808; SYO3AOP1_0163.
DR   KEGG; sul:SYO3AOP1_0163; -.
DR   eggNOG; COG0167; Bacteria.
DR   HOGENOM; CLU_042042_0_0_0; -.
DR   OMA; SCPHAKG; -.
DR   OrthoDB; 1109542at2; -.
DR   UniPathway; UPA00070; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:1990663; F:dihydroorotate dehydrogenase (fumarate) activity; IEA:UniProtKB-EC.
DR   GO; GO:0006207; P:'de novo' pyrimidine nucleobase biosynthetic process; IEA:InterPro.
DR   GO; GO:0044205; P:'de novo' UMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd04740; DHOD_1B_like; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_00224; DHO_dh_type1; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR033888; DHOD_1B.
DR   InterPro; IPR005720; Dihydroorotate_DH.
DR   InterPro; IPR024920; Dihydroorotate_DH_1.
DR   InterPro; IPR012135; Dihydroorotate_DH_1_2.
DR   InterPro; IPR001295; Dihydroorotate_DH_CS.
DR   Pfam; PF01180; DHO_dh; 1.
DR   PIRSF; PIRSF000164; DHO_oxidase; 1.
DR   TIGRFAMs; TIGR01037; pyrD_sub1_fam; 1.
DR   PROSITE; PS00912; DHODEHASE_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Flavoprotein; FMN; Oxidoreductase; Pyrimidine biosynthesis.
FT   CHAIN           1..311
FT                   /note="Putative dihydroorotate dehydrogenase A (fumarate)"
FT                   /id="PRO_1000100234"
FT   ACT_SITE        130
FT                   /note="Nucleophile"
FT   BINDING         21
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         45..46
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         45
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         69..73
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         99
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         127
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         127
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         165
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         191
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         192..193
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         217
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         245..246
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
FT   BINDING         267..268
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   311 AA;  33880 MW;  6DD26C66ED4D0C3F CRC64;
     MDKLKHTLFG LEFKNPVWTA SGTFSYGLEV AKIYDLSLLG AIVVKGLSLK PRKGNMPERI
     VETPAGMLNS IGLQNPGVDY FINETLPKLK KYDTKIFANV FGEDEDEYLA VAERLDKADG
     VHGLELNVSC PNVKKGGIAF GTDPEVLYNL VYKMKKITKK PLLVKLSPNV SNILDTADAC
     VSAGADGLVL INTLLGVAID VEREKPILST ITGGLSGPAM LPIAVRMIWQ VYQKYGSRIP
     IIGVGGISNY KDALQHILAG ASAIQVGTAN FYDPLSPLKI IEDLKNHLDK KGYVHYSQLI
     GKAHQMIIKE V