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XPT_STAA8
ID   XPT_STAA8               Reviewed;         192 AA.
AC   Q2G0Y9;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Xanthine phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01184};
DE            Short=XPRTase {ECO:0000255|HAMAP-Rule:MF_01184};
DE            EC=2.4.2.22 {ECO:0000255|HAMAP-Rule:MF_01184};
GN   Name=xpt {ECO:0000255|HAMAP-Rule:MF_01184};
GN   OrderedLocusNames=SAOUHSC_00372;
OS   Staphylococcus aureus (strain NCTC 8325 / PS 47).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=93061;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCTC 8325 / PS 47;
RA   Gillaspy A.F., Worrell V., Orvis J., Roe B.A., Dyer D.W., Iandolo J.J.;
RT   "The Staphylococcus aureus NCTC 8325 genome.";
RL   (In) Fischetti V., Novick R., Ferretti J., Portnoy D., Rood J. (eds.);
RL   Gram positive pathogens, 2nd edition, pp.381-412, ASM Press, Washington
RL   D.C. (2006).
CC   -!- FUNCTION: Converts the preformed base xanthine, a product of nucleic
CC       acid breakdown, to xanthosine 5'-monophosphate (XMP), so it can be
CC       reused for RNA or DNA synthesis. {ECO:0000255|HAMAP-Rule:MF_01184}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=diphosphate + XMP = 5-phospho-alpha-D-ribose 1-diphosphate +
CC         xanthine; Xref=Rhea:RHEA:10800, ChEBI:CHEBI:17712, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:57464, ChEBI:CHEBI:58017; EC=2.4.2.22;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01184};
CC   -!- PATHWAY: Purine metabolism; XMP biosynthesis via salvage pathway; XMP
CC       from xanthine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01184}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01184}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01184}.
CC   -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC       family. Xpt subfamily. {ECO:0000255|HAMAP-Rule:MF_01184}.
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DR   EMBL; CP000253; ABD29538.1; -; Genomic_DNA.
DR   RefSeq; WP_000421410.1; NZ_LS483365.1.
DR   RefSeq; YP_498961.1; NC_007795.1.
DR   AlphaFoldDB; Q2G0Y9; -.
DR   SMR; Q2G0Y9; -.
DR   STRING; 1280.SAXN108_0437; -.
DR   EnsemblBacteria; ABD29538; ABD29538; SAOUHSC_00372.
DR   GeneID; 3919791; -.
DR   GeneID; 66838694; -.
DR   KEGG; sao:SAOUHSC_00372; -.
DR   PATRIC; fig|93061.5.peg.342; -.
DR   eggNOG; COG0503; Bacteria.
DR   HOGENOM; CLU_099015_0_0_9; -.
DR   OMA; HQVDPVL; -.
DR   UniPathway; UPA00602; UER00658.
DR   PRO; PR:Q2G0Y9; -.
DR   Proteomes; UP000008816; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000310; F:xanthine phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-UniRule.
DR   GO; GO:0046110; P:xanthine metabolic process; IEA:InterPro.
DR   GO; GO:0032265; P:XMP salvage; IEA:UniProtKB-UniPathway.
DR   CDD; cd06223; PRTases_typeI; 1.
DR   Gene3D; 3.40.50.2020; -; 1.
DR   HAMAP; MF_01184; XPRTase; 1.
DR   InterPro; IPR000836; PRibTrfase_dom.
DR   InterPro; IPR029057; PRTase-like.
DR   InterPro; IPR010079; Xanthine_PRibTrfase.
DR   SUPFAM; SSF53271; SSF53271; 1.
DR   TIGRFAMs; TIGR01744; XPRTase; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Glycosyltransferase; Purine salvage; Reference proteome;
KW   Transferase.
FT   CHAIN           1..192
FT                   /note="Xanthine phosphoribosyltransferase"
FT                   /id="PRO_0000339751"
FT   BINDING         20
FT                   /ligand="xanthine"
FT                   /ligand_id="ChEBI:CHEBI:17712"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01184"
FT   BINDING         27
FT                   /ligand="xanthine"
FT                   /ligand_id="ChEBI:CHEBI:17712"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01184"
FT   BINDING         128..132
FT                   /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58017"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01184"
FT   BINDING         156
FT                   /ligand="xanthine"
FT                   /ligand_id="ChEBI:CHEBI:17712"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01184"
SQ   SEQUENCE   192 AA;  20884 MW;  8E56855976C6BEC5 CRC64;
     MELLGQKVKE DGVVIDEKIL KVDGFLNHQI DAKLMNEVGR TFYEQFKDKG ITKILTIEAS
     GIAPAIMAAL HFDVPCLFAK KAKPSTLTDG YYETSIHSFT KNKTSTVIVS KEFLSEEDTV
     LIIDDFLANG DASLGLYDIA QQANAKTAGI GIVVEKSFQN GHQRLEEAGL TVSSLCKVAS
     LEGNKVTLVG EE
 
 
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