ID A0A0R2MX71_9LACO Unreviewed; 180 AA.
AC A0A0R2MX71;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 24-JAN-2024, entry version 37.
DE RecName: Full=Bifunctional protein PyrR {ECO:0000256|HAMAP-Rule:MF_01219};
DE Includes:
DE RecName: Full=Pyrimidine operon regulatory protein {ECO:0000256|HAMAP-Rule:MF_01219};
DE Includes:
DE RecName: Full=Uracil phosphoribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01219};
DE Short=UPRTase {ECO:0000256|HAMAP-Rule:MF_01219};
DE EC=2.4.2.9 {ECO:0000256|HAMAP-Rule:MF_01219};
GN Name=pyrR {ECO:0000256|HAMAP-Rule:MF_01219};
GN ORFNames=IV56_GL001369 {ECO:0000313|EMBL:KRO18238.1};
OS Lacticaseibacillus saniviri JCM 17471 = DSM 24301.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lacticaseibacillus.
OX NCBI_TaxID=1293598 {ECO:0000313|EMBL:KRO18238.1, ECO:0000313|Proteomes:UP000050969};
RN [1] {ECO:0000313|EMBL:KRO18238.1, ECO:0000313|Proteomes:UP000050969}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 24301 {ECO:0000313|EMBL:KRO18238.1,
RC ECO:0000313|Proteomes:UP000050969};
RX PubMed=26415554; DOI=10.1038/ncomms9322;
RA Sun Z., Harris H.M., McCann A., Guo C., Argimon S., Zhang W., Yang X.,
RA Jeffery I.B., Cooney J.C., Kagawa T.F., Liu W., Song Y., Salvetti E.,
RA Wrobel A., Rasinkangas P., Parkhill J., Rea M.C., O'Sullivan O., Ritari J.,
RA Douillard F.P., Paul Ross R., Yang R., Briner A.E., Felis G.E.,
RA de Vos W.M., Barrangou R., Klaenhammer T.R., Caufield P.W., Cui Y.,
RA Zhang H., O'Toole P.W.;
RT "Expanding the biotechnology potential of lactobacilli through comparative
RT genomics of 213 strains and associated genera.";
RL Nat. Commun. 6:8322-8322(2015).
CC -!- FUNCTION: Also displays a weak uracil phosphoribosyltransferase
CC activity which is not physiologically significant. {ECO:0000256|HAMAP-
CC Rule:MF_01219}.
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:0000256|HAMAP-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:0000256|HAMAP-Rule:MF_01219};
CC -!- SUBUNIT: Homodimer and homohexamer; in equilibrium. {ECO:0000256|HAMAP-
CC Rule:MF_01219}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. PyrR subfamily. {ECO:0000256|ARBA:ARBA00005565,
CC ECO:0000256|HAMAP-Rule:MF_01219}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KRO18238.1}.
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DR EMBL; JQCE01000005; KRO18238.1; -; Genomic_DNA.
DR RefSeq; WP_056992061.1; NZ_JQCE01000005.1.
DR AlphaFoldDB; A0A0R2MX71; -.
DR STRING; 1293598.IV56_GL001369; -.
DR PATRIC; fig|1293598.4.peg.1433; -.
DR Proteomes; UP000050969; Unassembled WGS sequence.
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 PANTHER; PTHR11608; BIFUNCTIONAL PROTEIN PYRR; 1.
DR PANTHER; PTHR11608:SF0; BIFUNCTIONAL PROTEIN PYRR; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000256|HAMAP-Rule:MF_01219,
KW ECO:0000313|EMBL:KRO18238.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000050969};
KW RNA-binding {ECO:0000256|HAMAP-Rule:MF_01219};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_01219};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_01219};
KW Transcription termination {ECO:0000256|ARBA:ARBA00022472,
KW ECO:0000256|HAMAP-Rule:MF_01219};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01219, ECO:0000313|EMBL:KRO18238.1}.
FT DOMAIN 3..153
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT MOTIF 99..111
FT /note="PRPP-binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01219"
SQ SEQUENCE 180 AA; 20388 MW; 5521EF20F23424D2 CRC64;
MMKQVVDTVT MKRALTRITY EIIEQNKGLE DLVFVGIKTR GIYLAHRIAD RLEQLEGIKV
PVGELDIRLY RDDVHKVDHH QEPEISGSDI PVSITDKHVI LIDDVLFTGR TIRAALDALM
DLGRPQKISL AVLVDRGHRE LPIRPDFVGK NIPTSLKEQI HVNVEEVDGT DSITIEQLED
//
