ID   PYRF_BUCAP              Reviewed;         236 AA.
AC   Q8K9Q1;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 104.
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=BUsg_260;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
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; AE013218; AAM67818.1; -; Genomic_DNA.
DR   RefSeq; WP_011053785.1; NC_004061.1.
DR   AlphaFoldDB; Q8K9Q1; -.
DR   SMR; Q8K9Q1; -.
DR   STRING; 198804.BUsg_260; -.
DR   EnsemblBacteria; AAM67818; AAM67818; BUsg_260.
DR   KEGG; bas:BUsg_260; -.
DR   eggNOG; COG0284; Bacteria.
DR   HOGENOM; CLU_067069_0_0_6; -.
DR   OMA; NFKIFLD; -.
DR   OrthoDB; 1150446at2; -.
DR   UniPathway; UPA00070; UER00120.
DR   Proteomes; UP000000416; 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.
FT   CHAIN           1..236
FT                   /note="Orotidine 5'-phosphate decarboxylase"
FT                   /id="PRO_0000134533"
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         186
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         195
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         215
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"
SQ   SEQUENCE   236 AA;  26562 MW;  5609A1CF78746BA7 CRC64;
     MLYTNNYNIP KIIIALDFYN KKEAMTLVDL LDPSVFYLKI GKEMFTILGF KFVKELHKLG
     FNVFLDLKFH DIPNTVFNAT KAAADLGIWM LSVHASGGKN MLLSAKKALK SFKKPPLLIA
     VTMLTSLKEK DLKEIGIKIS LKDYILILSK LSNDCGLDGI VCPGNQAKKI KSLYGDKYKI
     ITPGIRLSSD SSFDQKHIIT PKEAKEFQID YIVIGRSITT SKNPIKKLNL IIESMR