ID C4LBK1_TOLAT Unreviewed; 154 AA.
AC C4LBK1;
DT 07-JUL-2009, integrated into UniProtKB/TrEMBL.
DT 07-JUL-2009, sequence version 1.
DT 27-MAR-2024, entry version 81.
DE RecName: Full=Xanthine-guanine phosphoribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01903};
DE Short=XGPRT {ECO:0000256|HAMAP-Rule:MF_01903};
DE EC=2.4.2.22 {ECO:0000256|HAMAP-Rule:MF_01903};
DE AltName: Full=Xanthine phosphoribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01903};
GN Name=gpt {ECO:0000256|HAMAP-Rule:MF_01903};
GN OrderedLocusNames=Tola_0808 {ECO:0000313|EMBL:ACQ92436.1};
OS Tolumonas auensis (strain DSM 9187 / TA4).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Aeromonadales;
OC Aeromonadaceae; Tolumonas.
OX NCBI_TaxID=595494 {ECO:0000313|EMBL:ACQ92436.1, ECO:0000313|Proteomes:UP000009073};
RN [1] {ECO:0000313|Proteomes:UP000009073}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 9187 / TA4 {ECO:0000313|Proteomes:UP000009073};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Spring S.,
RA Beller H.;
RT "Complete sequence of Tolumonas auensis DSM 9187.";
RL Submitted (MAY-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACQ92436.1, ECO:0000313|Proteomes:UP000009073}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 9187 / TA4 {ECO:0000313|Proteomes:UP000009073};
RX PubMed=22180815; DOI=10.4056/sigs.2184986;
RA Chertkov O., Copeland A., Lucas S., Lapidus A., Berry K.W., Detter J.C.,
RA Del Rio T.G., Hammon N., Dalin E., Tice H., Pitluck S., Richardson P.,
RA Bruce D., Goodwin L., Han C., Tapia R., Saunders E., Schmutz J.,
RA Brettin T., Larimer F., Land M., Hauser L., Spring S., Rohde M.,
RA Kyrpides N.C., Ivanova N., Goker M., Beller H.R., Klenk H.P., Woyke T.;
RT "Complete genome sequence of Tolumonas auensis type strain (TA 4).";
RL Stand. Genomic Sci. 5:112-120(2011).
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:0000256|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:0000256|HAMAP-
CC 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:0000256|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:0000256|HAMAP-Rule:MF_01903};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01903};
CC -!- PATHWAY: Purine metabolism; GMP biosynthesis via salvage pathway; GMP
CC from guanine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01903}.
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via salvage pathway; XMP
CC from xanthine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01903}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01903}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_01903}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_01903}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. XGPT subfamily. {ECO:0000256|HAMAP-Rule:MF_01903}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01903}.
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DR EMBL; CP001616; ACQ92436.1; -; Genomic_DNA.
DR RefSeq; WP_012729035.1; NC_012691.1.
DR AlphaFoldDB; C4LBK1; -.
DR STRING; 595494.Tola_0808; -.
DR KEGG; tau:Tola_0808; -.
DR eggNOG; COG2236; Bacteria.
DR HOGENOM; CLU_080904_3_0_6; -.
DR OrthoDB; 9789690at2; -.
DR UniPathway; UPA00602; UER00658.
DR UniPathway; UPA00909; UER00887.
DR Proteomes; UP000009073; Chromosome.
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; XANTHINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR39563:SF1; XANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
PE 3: Inferred from homology;
KW Cell inner membrane {ECO:0000256|HAMAP-Rule:MF_01903};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_01903};
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_01903};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01903};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01903};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01903};
KW Purine salvage {ECO:0000256|ARBA:ARBA00022726, ECO:0000256|HAMAP-
KW Rule:MF_01903}; Reference proteome {ECO:0000313|Proteomes:UP000009073};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01903}.
FT DOMAIN 9..141
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT BINDING 37..38
FT /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT /ligand_id="ChEBI:CHEBI:58017"
FT /evidence="ECO:0000256|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:0000256|HAMAP-Rule:MF_01903"
FT BINDING 89
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 92..96
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 92
FT /ligand="guanine"
FT /ligand_id="ChEBI:CHEBI:16235"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 92
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 134..135
FT /ligand="GMP"
FT /ligand_id="ChEBI:CHEBI:58115"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 135
FT /ligand="guanine"
FT /ligand_id="ChEBI:CHEBI:16235"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
FT BINDING 135
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01903"
SQ SEQUENCE 154 AA; 17594 MW; 5CBE975C21E10B64 CRC64;
MSRKFYVSWE NLHREARRLS RRQLPASQWK GILAVSRGGL VPAAIMAREL GIRFVDTICI
SSYEHDNQGD LNVLKRIDGD GEGFLIVDDL VDSGNTARLL REMYPKAKLV TVFAKPKGEH
LVDDFEVAIP QDTWIEQPWD MVHCFVPPIC EENQ
//
