PYRR_MACCJ
ID PYRR_MACCJ Reviewed; 174 AA.
AC B9EB64;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 25-MAY-2022, entry version 67.
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=MCCL_0768;
OS Macrococcus caseolyticus (strain JCSC5402).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae; Macrococcus.
OX NCBI_TaxID=458233;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCSC5402;
RX PubMed=19074389; DOI=10.1128/jb.01058-08;
RA Baba T., Kuwahara-Arai K., Uchiyama I., Takeuchi F., Ito T., Hiramatsu K.;
RT "Complete genome sequence of Macrococcus caseolyticus strain JCSCS5402,
RT reflecting the ancestral genome of the human-pathogenic staphylococci.";
RL J. Bacteriol. 191:1180-1190(2009).
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:0000255|HAMAP-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 -!- SUBUNIT: Homodimer and homohexamer; in equilibrium. {ECO:0000255|HAMAP-
CC 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; AP009484; BAH17475.1; -; Genomic_DNA.
DR RefSeq; WP_012656675.1; NC_011999.1.
DR AlphaFoldDB; B9EB64; -.
DR SMR; B9EB64; -.
DR STRING; 458233.MCCL_0768; -.
DR EnsemblBacteria; BAH17475; BAH17475; MCCL_0768.
DR KEGG; mcl:MCCL_0768; -.
DR eggNOG; COG2065; Bacteria.
DR HOGENOM; CLU_094234_2_1_9; -.
DR OMA; PIQPDFC; -.
DR OrthoDB; 1725260at2; -.
DR Proteomes; UP000001383; Chromosome.
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 Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; SSF53271; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase; Reference proteome; RNA-binding; Transcription;
KW Transcription regulation; Transcription termination; Transferase.
FT CHAIN 1..174
FT /note="Bifunctional protein PyrR"
FT /id="PRO_1000164850"
FT MOTIF 97..109
FT /note="PRPP-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01219"
SQ SEQUENCE 174 AA; 19779 MW; 11A12C08EDD99CCB CRC64;
MDKRIILDDK AIDRTLTRIA HEILENNKGA HDLVLLGIRT RGIYLAQRIQ SKIEKIDGIT
VPTGVLDVTQ YRDDITDRVS QDVVAYKIDT DMNNRHVVIV DDVLYTGRTV RASLDAILDH
VRPKRISLAT LIDRGHRELP IRADFIGKNI PTALSEEIVV MLDEVDDKTQ VYIK
