ID   PYRE_SACS2              Reviewed;         195 AA.
AC   Q9UX09;
DT   16-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   28-JAN-2026, entry version 133.
DE   RecName: Full=Orotate phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01208};
DE            Short=OPRT {ECO:0000255|HAMAP-Rule:MF_01208};
DE            Short=OPRTase {ECO:0000255|HAMAP-Rule:MF_01208};
DE            EC=2.4.2.10 {ECO:0000255|HAMAP-Rule:MF_01208};
GN   Name=pyrE {ECO:0000255|HAMAP-Rule:MF_01208};
GN   OrderedLocusNames=SSO0615; ORFNames=C08_035;
OS   Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
OS   (Sulfolobus solfataricus).
OC   Archaea; Thermoproteota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Saccharolobus.
OX   NCBI_TaxID=273057;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35092 / DSM 1617 / JCM 11322 / P2;
RX   PubMed=10701121; DOI=10.1139/g99-108;
RA   Charlebois R.L., Singh R.K., Chan-Weiher C.C.-Y., Allard G., Chow C.,
RA   Confalonieri F., Curtis B., Duguet M., Erauso G., Faguy D., Gaasterland T.,
RA   Garrett R.A., Gordon P., Jeffries A.C., Kozera C., Kushwaha N., Lafleur E.,
RA   Medina N., Peng X., Penny S.L., She Q., St Jean A., van der Oost J.,
RA   Young F., Zivanovic Y., Doolittle W.F., Ragan M.A., Sensen C.W.;
RT   "Gene content and organization of a 281-kbp contig from the genome of the
RT   extremely thermophilic archaeon, Sulfolobus solfataricus P2.";
RL   Genome 43:116-136(2000).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35092 / DSM 1617 / JCM 11322 / P2;
RX   PubMed=11427726; DOI=10.1073/pnas.141222098;
RA   She Q., Singh R.K., Confalonieri F., Zivanovic Y., Allard G., Awayez M.J.,
RA   Chan-Weiher C.C.-Y., Clausen I.G., Curtis B.A., De Moors A., Erauso G.,
RA   Fletcher C., Gordon P.M.K., Heikamp-de Jong I., Jeffries A.C., Kozera C.J.,
RA   Medina N., Peng X., Thi-Ngoc H.P., Redder P., Schenk M.E., Theriault C.,
RA   Tolstrup N., Charlebois R.L., Doolittle W.F., Duguet M., Gaasterland T.,
RA   Garrett R.A., Ragan M.A., Sensen C.W., Van der Oost J.;
RT   "The complete genome of the crenarchaeon Sulfolobus solfataricus P2.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:7835-7840(2001).
CC   -!- FUNCTION: Catalyzes the transfer of a ribosyl phosphate group from 5-
CC       phosphoribose 1-diphosphate to orotate, leading to the formation of
CC       orotidine monophosphate (OMP). {ECO:0000255|HAMAP-Rule:MF_01208}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=orotidine 5'-phosphate + diphosphate = orotate + 5-phospho-
CC         alpha-D-ribose 1-diphosphate; Xref=Rhea:RHEA:10380,
CC         ChEBI:CHEBI:30839, ChEBI:CHEBI:33019, ChEBI:CHEBI:57538,
CC         ChEBI:CHEBI:58017; EC=2.4.2.10; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01208};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01208};
CC   -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC       UMP from orotate: step 1/2. {ECO:0000255|HAMAP-Rule:MF_01208}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01208}.
CC   -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC       family. PyrE subfamily. {ECO:0000255|HAMAP-Rule:MF_01208}.
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DR   EMBL; Y18930; CAB57685.1; -; Genomic_DNA.
DR   EMBL; AE006641; AAK40926.1; -; Genomic_DNA.
DR   PIR; G90208; G90208.
DR   RefSeq; WP_009991146.1; NC_002754.1.
DR   AlphaFoldDB; Q9UX09; -.
DR   SMR; Q9UX09; -.
DR   FunCoup; Q9UX09; 153.
DR   STRING; 273057.SSO0615; -.
DR   PaxDb; 273057-SSO0615; -.
DR   EnsemblBacteria; AAK40926; AAK40926; SSO0615.
DR   GeneID; 1454893; -.
DR   GeneID; 44129617; -.
DR   KEGG; sso:SSO0615; -.
DR   PATRIC; fig|273057.12.peg.623; -.
DR   eggNOG; arCOG00029; Archaea.
DR   HOGENOM; CLU_074878_2_0_2; -.
DR   InParanoid; Q9UX09; -.
DR   PhylomeDB; Q9UX09; -.
DR   UniPathway; UPA00070; UER00119.
DR   Proteomes; UP000001974; Chromosome.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004588; F:orotate phosphoribosyltransferase activity; IBA:GO_Central.
DR   GO; GO:0044205; P:'de novo' UMP biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0019856; P:pyrimidine nucleobase biosynthetic process; IBA:GO_Central.
DR   GO; GO:0006222; P:UMP biosynthetic process; IBA:GO_Central.
DR   CDD; cd06223; PRTases_typeI; 1.
DR   FunFam; 3.40.50.2020:FF:000058; Orotidine-5-phosphate decarboxylase/orotate phosphoribosyltransferase; 1.
DR   Gene3D; 3.40.50.2020; -; 1.
DR   HAMAP; MF_01208; PyrE; 1.
DR   InterPro; IPR023031; OPRT.
DR   InterPro; IPR004467; Or_phspho_trans_dom.
DR   InterPro; IPR029057; PRTase-like.
DR   InterPro; IPR000836; PRTase_dom.
DR   NCBIfam; TIGR00336; pyrE; 1.
DR   PANTHER; PTHR19278; OROTATE PHOSPHORIBOSYLTRANSFERASE; 1.
DR   PANTHER; PTHR19278:SF9; URIDINE 5'-MONOPHOSPHATE SYNTHASE; 1.
DR   Pfam; PF00156; Pribosyltran; 1.
DR   SUPFAM; SSF53271; PRTase-like; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Magnesium; Pyrimidine biosynthesis;
KW   Reference proteome; Transferase.
FT   CHAIN           1..195
FT                   /note="Orotate phosphoribosyltransferase"
FT                   /id="PRO_0000110790"
FT   BINDING         86
FT                   /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58017"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
FT   BINDING         90
FT                   /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58017"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
FT   BINDING         92
FT                   /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58017"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
FT   BINDING         111..119
FT                   /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58017"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
FT   BINDING         115
FT                   /ligand="orotate"
FT                   /ligand_id="ChEBI:CHEBI:30839"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
FT   BINDING         143
FT                   /ligand="orotate"
FT                   /ligand_id="ChEBI:CHEBI:30839"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01208"
SQ   SEQUENCE   195 AA;  21614 MW;  E4CF07445B7FEBF4 CRC64;
     MNFAEVLLER KLLLIGSFVL TSGKVSPYYL DLRPLPNYPE FYDIVNQAIK KAKDIPHDII
     VGIATGGVPL SAFIACNLKE PMGYIRIEKK GHGTNRTLEL DVKGKRVLLV DDVATTGVSI
     EKATLEILNG GGKVSDALVI IDRQEGASQR LEKLGVKLHS LFKISEILDE LLKSDKLKDN
     EKKSILDYLV KNVEK
//