ID R7L2L2_9FIRM Unreviewed; 222 AA.
AC R7L2L2;
DT 24-JUL-2013, integrated into UniProtKB/TrEMBL.
DT 24-JUL-2013, sequence version 1.
DT 27-MAR-2024, entry version 42.
DE RecName: Full=Xanthine phosphoribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01184};
DE Short=XPRTase {ECO:0000256|HAMAP-Rule:MF_01184};
DE EC=2.4.2.22 {ECO:0000256|HAMAP-Rule:MF_01184};
GN Name=xpt {ECO:0000256|HAMAP-Rule:MF_01184};
GN ORFNames=BN622_00615 {ECO:0000313|EMBL:CDE82870.1};
OS Ruminococcus sp. CAG:353.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC Ruminococcus.
OX NCBI_TaxID=1262955 {ECO:0000313|EMBL:CDE82870.1, ECO:0000313|Proteomes:UP000017936};
RN [1] {ECO:0000313|EMBL:CDE82870.1, ECO:0000313|Proteomes:UP000017936}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MGS:353 {ECO:0000313|Proteomes:UP000017936};
RA Nielsen H.B., Almeida M., Juncker A.S., Rasmussen S., Li J., Sunagawa S.,
RA Plichta D., Gautier L., Le Chatelier E., Peletier E., Bonde I., Nielsen T.,
RA Manichanh C., Arumugam M., Batto J., Santos M.B.Q.D., Blom N., Borruel N.,
RA Burgdorf K.S., Boumezbeur F., Casellas F., Dore J., Guarner F., Hansen T.,
RA Hildebrand F., Kaas R.S., Kennedy S., Kristiansen K., Kultima J.R.,
RA Leonard P., Levenez F., Lund O., Moumen B., Le Paslier D., Pons N.,
RA Pedersen O., Prifti E., Qin J., Raes J., Tap J., Tims S., Ussery D.W.,
RA Yamada T., MetaHit consortium, Renault P., Sicheritz-Ponten T., Bork P.,
RA Wang J., Brunak S., Ehrlich S.D.;
RT "Dependencies among metagenomic species, viruses, plasmids and units of
RT genetic variation.";
RL Submitted (NOV-2012) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-Rule:MF_01184};
CC -!- PATHWAY: Purine metabolism; XMP biosynthesis via salvage pathway; XMP
CC from xanthine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01184}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01184}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01184}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. Xpt subfamily. {ECO:0000256|HAMAP-Rule:MF_01184}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:CDE82870.1}.
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DR EMBL; CBJQ010000241; CDE82870.1; -; Genomic_DNA.
DR AlphaFoldDB; R7L2L2; -.
DR UniPathway; UPA00602; UER00658.
DR Proteomes; UP000017936; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
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 NCBIfam; TIGR01744; XPRTase; 1.
DR PANTHER; PTHR43864; HYPOXANTHINE/GUANINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR43864:SF1; HYPOXANTHINE_GUANINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01184};
KW Glycosyltransferase {ECO:0000256|HAMAP-Rule:MF_01184,
KW ECO:0000313|EMBL:CDE82870.1}; Membrane {ECO:0000256|SAM:Phobius};
KW Purine salvage {ECO:0000256|ARBA:ARBA00022726, ECO:0000256|HAMAP-
KW Rule:MF_01184}; Reference proteome {ECO:0000313|Proteomes:UP000017936};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01184}; Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 7..28
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 84..189
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
FT BINDING 51
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01184"
FT BINDING 58
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01184"
FT BINDING 160..164
FT /ligand="5-phospho-alpha-D-ribose 1-diphosphate"
FT /ligand_id="ChEBI:CHEBI:58017"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01184"
FT BINDING 188
FT /ligand="xanthine"
FT /ligand_id="ChEBI:CHEBI:17712"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01184"
SQ SEQUENCE 222 AA; 24727 MW; 5EAD33AC99351DF2 CRC64;
MNIEKKRYII FLYSLFLMNF VIFVIFTGEN EMEILKQRIL KDGVVKEGNV LKVDKFLNHQ
MDVKLFNDIG EEFARRFAGL GVNKILTIEA SGIGIACIAA QHFNNCPIIF AKKTLSQNLD
GQMYITQVKS YTKGVTYDVM VSKKYLGKGD KVLIIDDFLA NGCALMGLIH IVEQSGADLV
GAGIVIEKGF QVGGQTIRDM GIKLESLAII DSMDDGKIVF RD
//
