XGPT_VIBVU
ID XGPT_VIBVU Reviewed; 154 AA.
AC Q8DF90;
DT 20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 03-AUG-2022, entry version 116.
DE RecName: Full=Xanthine-guanine phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01903};
DE Short=XGPRT {ECO:0000255|HAMAP-Rule:MF_01903};
DE EC=2.4.2.- {ECO:0000255|HAMAP-Rule:MF_01903};
DE EC=2.4.2.22 {ECO:0000255|HAMAP-Rule:MF_01903};
DE AltName: Full=Xanthine phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01903};
GN Name=gpt {ECO:0000255|HAMAP-Rule:MF_01903}; OrderedLocusNames=VV1_0329;
OS Vibrio vulnificus (strain CMCP6).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=216895;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CMCP6;
RA Rhee J.H., Kim S.Y., Chung S.S., Kim J.J., Moon Y.H., Jeong H., Choy H.E.;
RT "Complete genome sequence of Vibrio vulnificus CMCP6.";
RL Submitted (DEC-2002) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Purine salvage pathway enzyme that catalyzes the transfer of
CC the ribosyl-5-phosphate group from 5-phospho-alpha-D-ribose 1-
CC diphosphate (PRPP) to the N9 position of the 6-oxopurines guanine and
CC xanthine to form the corresponding ribonucleotides GMP (guanosine 5'-
CC monophosphate) and XMP (xanthosine 5'-monophosphate), with the release
CC of PPi. To a lesser extent, also acts on hypoxanthine.
CC {ECO:0000255|HAMAP-Rule:MF_01903}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=diphosphate + GMP = 5-phospho-alpha-D-ribose 1-diphosphate +
CC guanine; Xref=Rhea:RHEA:25424, ChEBI:CHEBI:16235, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:58017, ChEBI:CHEBI:58115; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01903};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:25426;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01903};
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_01903};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:10802;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01903};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=diphosphate + IMP = 5-phospho-alpha-D-ribose 1-diphosphate +
CC hypoxanthine; Xref=Rhea:RHEA:17973, ChEBI:CHEBI:17368,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:58017, ChEBI:CHEBI:58053;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01903};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:17975;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01903};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01903};
CC -!- PATHWAY: Purine metabolism; GMP biosynthesis via salvage pathway; GMP
CC from guanine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01903}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via salvage pathway; XMP
CC from xanthine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01903}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01903}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_01903}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01903}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. XGPT subfamily. {ECO:0000255|HAMAP-Rule:MF_01903}.
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DR EMBL; AE016795; AAO08858.1; -; Genomic_DNA.
DR RefSeq; WP_011078433.1; NC_004459.3.
DR AlphaFoldDB; Q8DF90; -.
DR SMR; Q8DF90; -.
DR EnsemblBacteria; AAO08858; AAO08858; VV1_0329.
DR KEGG; vvu:VV1_0329; -.
DR HOGENOM; CLU_080904_3_0_6; -.
DR OMA; FHRDCRA; -.
DR UniPathway; UPA00602; UER00658.
DR UniPathway; UPA00909; UER00887.
DR Proteomes; UP000002275; Chromosome 1.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0052657; F:guanine phosphoribosyltransferase activity; IEA:RHEA.
DR GO; GO:0004422; F:hypoxanthine phosphoribosyltransferase activity; IEA:RHEA.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000310; F:xanthine phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0032263; P:GMP salvage; IEA:UniProtKB-UniPathway.
DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-UniRule.
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_01903; XGPRT; 1.
DR InterPro; IPR000836; PRibTrfase_dom.
DR InterPro; IPR029057; PRTase-like.
DR InterPro; IPR023747; Xanthine_Guanine_PRibTrfase.
DR PANTHER; PTHR39563; PTHR39563; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; SSF53271; 1.
DR PROSITE; PS00103; PUR_PYR_PR_TRANSFER; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Glycosyltransferase; Magnesium;
KW Membrane; Metal-binding; Purine salvage; Transferase.
FT CHAIN 1..154
FT /note="Xanthine-guanine phosphoribosyltransferase"
FT /id="PRO_0000139693"
FT BINDING 37..38
FT /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT /ligand_id="ChEBI:CHEBI:58017"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 69
FT /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT /ligand_id="ChEBI:CHEBI:58017"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 69
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 88..96
FT /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT /ligand_id="ChEBI:CHEBI:58017"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 89
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 92..96
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 92
FT /ligand="guanine"
FT /ligand_id="ChEBI:CHEBI:16235"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 92
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 134..135
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 135
FT /ligand="guanine"
FT /ligand_id="ChEBI:CHEBI:16235"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
FT BINDING 135
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01903"
SQ SEQUENCE 154 AA; 17436 MW; F9540C47DC94A79D CRC64;
MSNKFVITWD AMQTYCRQLA EKQMPADQWK GIWAVSRGGL VPGAILAREL GIRYVDTICI
SSYDHDHQRD MTVLKAPEGD GEGYLIVEDL VDSGDTARKL REMYPKAKLI AVCAKPSGKE
LLDDYVVDIA QDTWIEQPWD MALAYAEPVN RKQK
