ID   PYRF_SYNY3              Reviewed;         231 AA.
AC   P73761;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   03-AUG-2022, entry version 123.
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=sll0838;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC   unclassified Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
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; BA000022; BAA17813.1; -; Genomic_DNA.
DR   PIR; S74852; S74852.
DR   AlphaFoldDB; P73761; -.
DR   SMR; P73761; -.
DR   STRING; 1148.1652895; -.
DR   PaxDb; P73761; -.
DR   EnsemblBacteria; BAA17813; BAA17813; BAA17813.
DR   KEGG; syn:sll0838; -.
DR   eggNOG; COG0284; Bacteria.
DR   InParanoid; P73761; -.
DR   OMA; NFKIFLD; -.
DR   PhylomeDB; P73761; -.
DR   UniPathway; UPA00070; UER00120.
DR   Proteomes; UP000001425; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0004590; F:orotidine-5'-phosphate decarboxylase activity; IBA:GO_Central.
DR   GO; GO:0006207; P:'de novo' pyrimidine nucleobase biosynthetic process; IBA:GO_Central.
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..231
FT                   /note="Orotidine 5'-phosphate decarboxylase"
FT                   /id="PRO_0000134594"
FT   ACT_SITE        61
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         11
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         32
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         59..68
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         118
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         180
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         189
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         209
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
FT   BINDING         210
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01200"
SQ   SEQUENCE   231 AA;  24705 MW;  9772FCBBF7F3D4D2 CRC64;
     MTPDQVIVAL DVPDLPKAIA LVDRLPGVGF WKVGLELFVG AGPVILAELK DRGKRIFLDL
     KFHDIPNTML GACLSASRYE VDLLTLHATA GSQALTLAAQ AMAPLPHPPK LLAITLLTSI
     GDRQLREELQ QPLAVDDYVN AMARLARNAG IDGAVCSPQE VAKLRQTCGP EFLLVTPGVR
     PLWSAPGDQQ RVMIPAQAIA AGANYVVIGR PITADPSPEA AWERLCQDLA V