ID F0I6T4_STRSA Unreviewed; 172 AA.
AC F0I6T4;
DT 03-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 03-MAY-2011, sequence version 1.
DT 24-JAN-2024, entry version 55.
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 ECO:0000313|EMBL:EGD32584.1};
GN ORFNames=HMPREF9382_0517 {ECO:0000313|EMBL:EGD32584.1};
OS Streptococcus sanguinis SK115.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=888810 {ECO:0000313|EMBL:EGD32584.1, ECO:0000313|Proteomes:UP000003351};
RN [1] {ECO:0000313|EMBL:EGD32584.1, ECO:0000313|Proteomes:UP000003351}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SK115 {ECO:0000313|EMBL:EGD32584.1,
RC ECO:0000313|Proteomes:UP000003351};
RA Muzny D., Qin X., Deng J., Jiang H., Liu Y., Qu J., Song X.-Z., Zhang L.,
RA Thornton R., Coyle M., Francisco L., Jackson L., Javaid M., Korchina V.,
RA Kovar C., Mata R., Mathew T., Ngo R., Nguyen L., Nguyen N., Okwuonu G.,
RA Ongeri F., Pham C., Simmons D., Wilczek-Boney K., Hale W., Jakkamsetti A.,
RA Pham P., Ruth R., San Lucas F., Warren J., Zhang J., Zhao Z., Zhou C.,
RA Zhu D., Lee S., Bess C., Blankenburg K., Forbes L., Fu Q., Gubbala S.,
RA Hirani K., Jayaseelan J.C., Lara F., Munidasa M., Palculict T., Patil S.,
RA Pu L.-L., Saada N., Tang L., Weissenberger G., Zhu Y., Hemphill L.,
RA Shang Y., Youmans B., Ayvaz T., Ross M., Santibanez J., Aqrawi P.,
RA Gross S., Joshi V., Fowler G., Nazareth L., Reid J., Worley K.,
RA Petrosino J., Highlander S., Gibbs R.;
RL Submitted (FEB-2011) 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:EGD32584.1}.
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DR EMBL; AEXW01000004; EGD32584.1; -; Genomic_DNA.
DR RefSeq; WP_002904664.1; NZ_GL872408.1.
DR AlphaFoldDB; F0I6T4; -.
DR SMR; F0I6T4; -.
DR PATRIC; fig|888810.3.peg.498; -.
DR HOGENOM; CLU_094234_2_1_9; -.
DR Proteomes; UP000003351; 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}; 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|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01219}.
FT DOMAIN 11..153
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT MOTIF 93..105
FT /note="PRPP-binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01219"
SQ SEQUENCE 172 AA; 19472 MW; 296DD0A6666E240F CRC64;
MKTKEVVDDI TMNRAITRIT YEIIERNKDL NQVVLAGIKT RGVHLAHRIQ KRLAQLENID
IPVAEVDTKP FRDDIKVEED TTVIPVDITD RQVILIDDVL YTGRTIRAAI DNLVSHGRPS
RVGLAVLVDR GHRELPIRAD YVGKNIPTSQ TEEIIVEMTE TDGQDRVLIM GE
//
