ID   XPT_FINM2               Reviewed;         190 AA.
AC   B0S259;
DT   10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 70.
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}; OrderedLocusNames=FMG_1031;
OS   Finegoldia magna (strain ATCC 29328 / DSM 20472 / WAL 2508)
OS   (Peptostreptococcus magnus).
OC   Bacteria; Firmicutes; Tissierellia; Tissierellales; Peptoniphilaceae;
OC   Finegoldia.
OX   NCBI_TaxID=334413;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29328 / DSM 20472 / WAL 2508;
RX   PubMed=18263572; DOI=10.1093/dnares/dsm030;
RA   Goto T., Yamashita A., Hirakawa H., Matsutani M., Todo K., Ohshima K.,
RA   Toh H., Miyamoto K., Kuhara S., Hattori M., Shimizu T., Akimoto S.;
RT   "Complete genome sequence of Finegoldia magna, an anaerobic opportunistic
RT   pathogen.";
RL   DNA Res. 15:39-47(2008).
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; AP008971; BAG08449.1; -; Genomic_DNA.
DR   RefSeq; WP_002842196.1; NC_010376.1.
DR   AlphaFoldDB; B0S259; -.
DR   SMR; B0S259; -.
DR   STRING; 334413.FMG_1031; -.
DR   EnsemblBacteria; BAG08449; BAG08449; FMG_1031.
DR   KEGG; fma:FMG_1031; -.
DR   eggNOG; COG0503; Bacteria.
DR   HOGENOM; CLU_099015_0_0_9; -.
DR   OMA; HQVDPVL; -.
DR   OrthoDB; 1532478at2; -.
DR   UniPathway; UPA00602; UER00658.
DR   Proteomes; UP000001319; 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..190
FT                   /note="Xanthine phosphoribosyltransferase"
FT                   /id="PRO_0000339699"
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   190 AA;  21589 MW;  DAD66FAF1C4D5B58 CRC64;
     MRKLEERIMK DGLVLPGNIL KVDRFINHMI DPVLFEDLAN EFYEKFKDKK INKILTIEVS
     GIAIAYACGI RFNCPVVFAK KTSSKTLGDN CYRTEVFSFT KNRSYEVMVS KEYLDEKDHV
     LLIDDFLANG KALEGLIDIC SQANATVEGI GILIEKVFQK GGENLRRQGY TIESLARIKG
     FTDDSVIFED