ID   PYRF_BUCBP              Reviewed;         236 AA.
AC   Q89AL6;
DT   23-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   23-MAY-2003, sequence version 1.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=Orotidine 5'-phosphate decarboxylase {ECO:0000255|HAMAP-Rule:MF_01200};
DE            EC=4.1.1.23 {ECO:0000255|HAMAP-Rule:MF_01200};
DE   AltName: Full=OMP decarboxylase {ECO:0000255|HAMAP-Rule:MF_01200};
DE            Short=OMPDCase {ECO:0000255|HAMAP-Rule:MF_01200};
DE            Short=OMPdecase {ECO:0000255|HAMAP-Rule:MF_01200};
GN   Name=pyrF {ECO:0000255|HAMAP-Rule:MF_01200}; OrderedLocusNames=bbp_251;
OS   Buchnera aphidicola subsp. Baizongia pistaciae (strain Bp).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=224915;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Bp;
RX   PubMed=12522265; DOI=10.1073/pnas.0235981100;
RA   van Ham R.C.H.J., Kamerbeek J., Palacios C., Rausell C., Abascal F.,
RA   Bastolla U., Fernandez J.M., Jimenez L., Postigo M., Silva F.J.,
RA   Tamames J., Viguera E., Latorre A., Valencia A., Moran F., Moya A.;
RT   "Reductive genome evolution in Buchnera aphidicola.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:581-586(2003).
CC   -!- FUNCTION: Catalyzes the decarboxylation of orotidine 5'-monophosphate
CC       (OMP) to uridine 5'-monophosphate (UMP). {ECO:0000255|HAMAP-
CC       Rule:MF_01200}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H(+) + orotidine 5'-phosphate = CO2 + UMP;
CC         Xref=Rhea:RHEA:11596, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:57538, ChEBI:CHEBI:57865; EC=4.1.1.23;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01200};
CC   -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC       UMP from orotate: step 2/2. {ECO:0000255|HAMAP-Rule:MF_01200}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01200}.
CC   -!- SIMILARITY: Belongs to the OMP decarboxylase family. Type 1 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01200}.
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DR   EMBL; AE016826; AAO26978.1; -; Genomic_DNA.
DR   RefSeq; WP_011091379.1; NC_004545.1.
DR   AlphaFoldDB; Q89AL6; -.
DR   SMR; Q89AL6; -.
DR   STRING; 224915.bbp_251; -.
DR   EnsemblBacteria; AAO26978; AAO26978; bbp_251.
DR   GeneID; 56470793; -.
DR   KEGG; bab:bbp_251; -.
DR   eggNOG; COG0284; Bacteria.
DR   HOGENOM; CLU_067069_0_0_6; -.
DR   OMA; NFKIFLD; -.
DR   OrthoDB; 1150446at2; -.
DR   UniPathway; UPA00070; UER00120.
DR   Proteomes; UP000000601; Chromosome.
DR   GO; GO:0004590; F:orotidine-5'-phosphate decarboxylase activity; IEA:UniProtKB-UniRule.
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   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01200_B; OMPdecase_type1_B; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR014732; OMPdecase.
DR   InterPro; IPR018089; OMPdecase_AS.
DR   InterPro; IPR001754; OMPdeCOase_dom.
DR   InterPro; IPR011060; RibuloseP-bd_barrel.
DR   PANTHER; PTHR32119:SF2; PTHR32119:SF2; 1.
DR   Pfam; PF00215; OMPdecase; 1.
DR   SMART; SM00934; OMPdecase; 1.
DR   SUPFAM; SSF51366; SSF51366; 1.
DR   TIGRFAMs; TIGR01740; pyrF; 1.
DR   PROSITE; PS00156; OMPDECASE; 1.
PE   3: Inferred from homology;
KW   Decarboxylase; Lyase; Pyrimidine biosynthesis; Reference proteome.
FT   CHAIN           1..236
FT                   /note="Orotidine 5'-phosphate decarboxylase"
FT                   /id="PRO_0000134534"
FT   ACT_SITE        68
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         17
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         39
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         66..75
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         125
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         187
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         196
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         216
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         217
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
SQ   SEQUENCE   236 AA;  26565 MW;  3F730373627D2E9D CRC64;
     MHLKSNFKNI NIIIALDFFD ENKAMKFIYN LNPTIYALKI GNIMFTLFGV RFIKILQKLG
     FKIFLDLKFY DIPNTIFGAI QAVANLNIWM VSIHISGGIQ MLKSARLALK PFKNKPLLMG
     VTILTSLDKT DMSKLGIQIS LSKYILSLAK IAHKCNLDGI ICSGTEISNI KKHINVKNFK
     ILTPGIRLNG CSSNDQKNVT TPMLAKQYNV DYIIIGRIVT SSQNPLKTLE LIRSQI