PYRR_SYNY3
ID PYRR_SYNY3 Reviewed; 178 AA.
AC Q55758;
DT 30-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 03-AUG-2022, entry version 123.
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=sll0368;
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=ATCC 27184 / PCC 6803 / N-1;
RX PubMed=8590279; DOI=10.1093/dnares/2.4.153;
RA Kaneko T., Tanaka A., Sato S., Kotani H., Sazuka T., Miyajima N.,
RA Sugiura M., Tabata S.;
RT "Sequence analysis of the genome of the unicellular cyanobacterium
RT Synechocystis sp. strain PCC6803. I. Sequence features in the 1 Mb region
RT from map positions 64% to 92% of the genome.";
RL DNA Res. 2:153-166(1995).
RN [2]
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: 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; BA000022; BAA10405.1; -; Genomic_DNA.
DR PIR; S76559; S76559.
DR AlphaFoldDB; Q55758; -.
DR SMR; Q55758; -.
DR STRING; 1148.1001670; -.
DR PaxDb; Q55758; -.
DR EnsemblBacteria; BAA10405; BAA10405; BAA10405.
DR KEGG; syn:sll0368; -.
DR eggNOG; COG2065; Bacteria.
DR InParanoid; Q55758; -.
DR OMA; PIQPDFC; -.
DR PhylomeDB; Q55758; -.
DR Proteomes; UP000001425; 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..178
FT /note="Bifunctional protein PyrR"
FT /id="PRO_0000183071"
FT MOTIF 99..111
FT /note="PRPP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01219"
FT BINDING 42..43
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000250"
FT BINDING 83
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000250"
FT BINDING 103..111
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000250"
FT BINDING 136
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000250"
FT BINDING 160
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000250"
SQ SEQUENCE 178 AA; 19946 MW; 51041092F845917C CRC64;
MAAQIIEILS PEEIRRTLTR LASQVIEKNS DLSELVLLGI YTRGVPLAHQ LAQQIEMLEQ
VKVPVGAIDV TLYRDDLKRI KTRTPAKTKI PLSLTGKRVV LVDDVIYKGR TIRAALNAVT
EYGRPQVIRL LTLVDRGHRE LPIHPDFVGK ILPTAAEEQV KVYLQDPDGR DTVELIKG