ID A0A401I2H9_9BACL Unreviewed; 187 AA.
AC A0A401I2H9;
DT 08-MAY-2019, integrated into UniProtKB/TrEMBL.
DT 08-MAY-2019, sequence version 1.
DT 24-JAN-2024, entry version 14.
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=PA598K_03908 {ECO:0000313|EMBL:GBF75495.1};
OS Paenibacillus sp. 598K.
OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae; Paenibacillus.
OX NCBI_TaxID=1117987 {ECO:0000313|EMBL:GBF75495.1, ECO:0000313|Proteomes:UP000288287};
RN [1] {ECO:0000313|EMBL:GBF75495.1, ECO:0000313|Proteomes:UP000288287}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=598K {ECO:0000313|EMBL:GBF75495.1,
RC ECO:0000313|Proteomes:UP000288287};
RA Mizushima D., Miyazaki T., Shiwa Y., Kimura K., Fujita N., Yoshikawa H.,
RA Kimura A., Kitamura S., Hara H., Funane K.;
RT "A novel intracellular dextranase derived from Paenibacillus sp. 598K with
RT an ability of degrading cycloisomaltooligosaccharides.";
RL Submitted (MAR-2018) to the EMBL/GenBank/DDBJ databases.
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:GBF75495.1}.
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DR EMBL; BFBX01000065; GBF75495.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A401I2H9; -.
DR OrthoDB; 9802227at2; -.
DR Proteomes; UP000288287; 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|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_01219}; Reference proteome {ECO:0000313|Proteomes:UP000288287};
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:GBF75495.1}.
FT DOMAIN 12..157
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT MOTIF 103..115
FT /note="PRPP-binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01219"
SQ SEQUENCE 187 AA; 20955 MW; 80271A6EAC16D12B CRC64;
MSEERHDIMD ETSIRRALTR IAHEILEKNK GIDNCVLVGI RTRGIYLARR LAERIHEIEG
KQVAVGELDI TSYRDDRSTR PVSSGAACVD EAGQSLALQD KRVILFDDVL YTGRTIRAAM
DALMDHGRPQ LIQLAVLADR GHRELPIRAD YVGKNVPTSK LEKIEVSLSE LDGEDKVTII
QQRGQQA
//
