ID   PYRR_PSESM              Reviewed;         170 AA.
AC   Q87VA0;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 112.
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=PSPTO_5039;
GN   ORFNames=PSPTO5039;
OS   Pseudomonas syringae pv. tomato (strain ATCC BAA-871 / DC3000).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=223283;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-871 / DC3000;
RX   PubMed=12928499; DOI=10.1073/pnas.1731982100;
RA   Buell C.R., Joardar V., Lindeberg M., Selengut J., Paulsen I.T.,
RA   Gwinn M.L., Dodson R.J., DeBoy R.T., Durkin A.S., Kolonay J.F., Madupu R.,
RA   Daugherty S.C., Brinkac L.M., Beanan M.J., Haft D.H., Nelson W.C.,
RA   Davidsen T.M., Zafar N., Zhou L., Liu J., Yuan Q., Khouri H.M.,
RA   Fedorova N.B., Tran B., Russell D., Berry K.J., Utterback T.R.,
RA   Van Aken S.E., Feldblyum T.V., D'Ascenzo M., Deng W.-L., Ramos A.R.,
RA   Alfano J.R., Cartinhour S., Chatterjee A.K., Delaney T.P., Lazarowitz S.G.,
RA   Martin G.B., Schneider D.J., Tang X., Bender C.L., White O., Fraser C.M.,
RA   Collmer A.;
RT   "The complete genome sequence of the Arabidopsis and tomato pathogen
RT   Pseudomonas syringae pv. tomato DC3000.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:10181-10186(2003).
CC   -!- FUNCTION: Regulates the transcription of the pyrimidine nucleotide
CC       (pyr) operon in response to exogenous pyrimidines. {ECO:0000255|HAMAP-
CC       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   -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC       family. PyrR subfamily. {ECO:0000255|HAMAP-Rule:MF_01219}.
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DR   EMBL; AE016853; AAO58467.1; -; Genomic_DNA.
DR   RefSeq; NP_794772.1; NC_004578.1.
DR   RefSeq; WP_005736951.1; NC_004578.1.
DR   AlphaFoldDB; Q87VA0; -.
DR   SMR; Q87VA0; -.
DR   STRING; 223283.PSPTO_5039; -.
DR   EnsemblBacteria; AAO58467; AAO58467; PSPTO_5039.
DR   GeneID; 1186724; -.
DR   KEGG; pst:PSPTO_5039; -.
DR   PATRIC; fig|223283.9.peg.5158; -.
DR   eggNOG; COG2065; Bacteria.
DR   HOGENOM; CLU_094234_1_1_6; -.
DR   OMA; PIQPDFC; -.
DR   OrthoDB; 1725260at2; -.
DR   PhylomeDB; Q87VA0; -.
DR   Proteomes; UP000002515; Chromosome.
DR   GO; GO:0004845; F:uracil phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; 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; Transcription;
KW   Transcription regulation; Transferase.
FT   CHAIN           1..170
FT                   /note="Bifunctional protein PyrR"
FT                   /id="PRO_1000139207"
FT   MOTIF           90..102
FT                   /note="PRPP-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01219"
SQ   SEQUENCE   170 AA;  18456 MW;  D694740F64003D6D CRC64;
     MSLPNPAELI RQMATDLNAH LSKRGISDPR FIGIRTGGVW VAQALLEALN NPSPLGTLDV
     SFYRDDFSQN GLHPQVRPSE LPFEIEGQHL VLIDDVLMSG RTVRAALNEL FDYGRPASVT
     LVCLLDLNAG ELPIRPNVVG ATLSLAPNER IKLSGPEPLA LELQDLSTAL