ID   PYRR_PEDPA              Reviewed;         177 AA.
AC   Q03FM3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Bifunctional protein PyrR {ECO:0000255|HAMAP-Rule:MF_01219};
DE   Includes:
DE     RecName: Full=Pyrimidine operon regulatory protein {ECO:0000255|HAMAP-Rule:MF_01219};
DE   Includes:
DE     RecName: Full=Uracil phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01219};
DE              Short=UPRTase {ECO:0000255|HAMAP-Rule:MF_01219};
DE              EC=2.4.2.9 {ECO:0000255|HAMAP-Rule:MF_01219};
GN   Name=pyrR {ECO:0000255|HAMAP-Rule:MF_01219}; OrderedLocusNames=PEPE_0942;
OS   Pediococcus pentosaceus (strain ATCC 25745 / CCUG 21536 / LMG 10740 /
OS   183-1w).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Pediococcus.
OX   NCBI_TaxID=278197;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25745 / CCUG 21536 / LMG 10740 / 183-1w;
RX   PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA   Makarova K.S., Slesarev A., Wolf Y.I., Sorokin A., Mirkin B., Koonin E.V.,
RA   Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA   Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA   Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA   Baldwin K., Lee J.-H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA   Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA   Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J.R., Hutkins R.,
RA   O'Sullivan D., Steele J., Unlu G., Saier M.H. Jr., Klaenhammer T.,
RA   Richardson P., Kozyavkin S., Weimer B.C., Mills D.A.;
RT   "Comparative genomics of the lactic acid bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
CC   -!- FUNCTION: Regulates transcriptional attenuation of the pyrimidine
CC       nucleotide (pyr) operon by binding in a uridine-dependent manner to
CC       specific sites on pyr mRNA. This disrupts an antiterminator hairpin in
CC       the RNA and favors formation of a downstream transcription terminator,
CC       leading to a reduced expression of downstream genes.
CC       {ECO:0000255|HAMAP-Rule:MF_01219}.
CC   -!- FUNCTION: Also displays a weak uracil phosphoribosyltransferase
CC       activity which is not physiologically significant. {ECO:0000255|HAMAP-
CC       Rule:MF_01219}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=diphosphate + UMP = 5-phospho-alpha-D-ribose 1-diphosphate +
CC         uracil; Xref=Rhea:RHEA:13017, ChEBI:CHEBI:17568, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:57865, ChEBI:CHEBI:58017; EC=2.4.2.9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01219};
CC   -!- SUBUNIT: Homodimer and homohexamer; in equilibrium. {ECO:0000255|HAMAP-
CC       Rule:MF_01219}.
CC   -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC       family. PyrR subfamily. {ECO:0000255|HAMAP-Rule:MF_01219}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000422; ABJ67999.1; -; Genomic_DNA.
DR   RefSeq; WP_002833058.1; NC_008525.1.
DR   AlphaFoldDB; Q03FM3; -.
DR   SMR; Q03FM3; -.
DR   STRING; 278197.PEPE_0942; -.
DR   EnsemblBacteria; ABJ67999; ABJ67999; PEPE_0942.
DR   GeneID; 33062913; -.
DR   KEGG; ppe:PEPE_0942; -.
DR   eggNOG; COG2065; Bacteria.
DR   HOGENOM; CLU_094234_2_1_9; -.
DR   OMA; VRITYEI; -.
DR   OrthoDB; 1725260at2; -.
DR   Proteomes; UP000000773; Chromosome.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004845; F:uracil phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IEA:UniProtKB-UniRule.
DR   CDD; cd06223; PRTases_typeI; 1.
DR   Gene3D; 3.40.50.2020; -; 1.
DR   HAMAP; MF_01219; PyrR; 1.
DR   InterPro; IPR000836; PRibTrfase_dom.
DR   InterPro; IPR029057; PRTase-like.
DR   InterPro; IPR023050; PyrR.
DR   Pfam; PF00156; Pribosyltran; 1.
DR   SUPFAM; SSF53271; SSF53271; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Reference proteome; RNA-binding; Transcription;
KW   Transcription regulation; Transcription termination; Transferase.
FT   CHAIN           1..177
FT                   /note="Bifunctional protein PyrR"
FT                   /id="PRO_1000053853"
FT   MOTIF           99..111
FT                   /note="PRPP-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01219"
SQ   SEQUENCE   177 AA;  20174 MW;  6DFBEC1DF4B8301D CRC64;
     MEKEIMDAMA MKRALTRITY EIIERNKGVE DIVLIGIKTR GVFIAKRIAE RLKQLENFDI
     PVGELDIAEY RDDQRNSAEP RSTKANSSLA KLDLKDRKVI LIDDVLYTGR TIRAAMDAIM
     DINRPAQISL AVLVDRGHRE LPIRADFVGK NIPTAQNEKI NVFVREIDDE DVVLLEN