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Protein

Xanthine phosphoribosyltransferase

Gene

xpt

Organism
Bifidobacterium animalis subsp. lactis (strain AD011)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Converts the preformed base xanthine, a product of nucleic acid breakdown, to xanthosine 5'-monophosphate (XMP), so it can be reused for RNA or DNA synthesis.UniRule annotation

Catalytic activityi

XMP + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate + xanthine.UniRule annotation

Pathwayi: XMP biosynthesis via salvage pathway

This protein is involved in step 1 of the subpathway that synthesizes XMP from xanthine.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Xanthine phosphoribosyltransferase (xpt)
This subpathway is part of the pathway XMP biosynthesis via salvage pathway, which is itself part of Purine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes XMP from xanthine, the pathway XMP biosynthesis via salvage pathway and in Purine metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei20Xanthine; via amide nitrogen and carbonyl oxygenUniRule annotation1
Binding sitei27XanthineUniRule annotation1
Binding sitei157XanthineUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosyltransferase, Transferase
Biological processPurine salvage

Enzyme and pathway databases

UniPathwayiUPA00602; UER00658.

Names & Taxonomyi

Protein namesi
Recommended name:
Xanthine phosphoribosyltransferaseUniRule annotation (EC:2.4.2.22UniRule annotation)
Short name:
XPRTaseUniRule annotation
Gene namesi
Name:xptUniRule annotation
Ordered Locus Names:BLA_1460
OrganismiBifidobacterium animalis subsp. lactis (strain AD011)
Taxonomic identifieri442563 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaBifidobacterialesBifidobacteriaceaeBifidobacterium
Proteomesi
  • UP000002456 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001644471 – 193Xanthine phosphoribosyltransferaseAdd BLAST193

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB8DUR4.
SMRiB8DUR4.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni129 – 1335-phospho-alpha-D-ribose 1-diphosphate bindingUniRule annotation5

Sequence similaritiesi

Belongs to the purine/pyrimidine phosphoribosyltransferase family. Xpt subfamily.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000036777.
KOiK03816.
OMAiESQIAVS.

Family and domain databases

CDDicd06223. PRTases_typeI. 1 hit.
HAMAPiMF_01184. XPRTase. 1 hit.
InterProiView protein in InterPro
IPR000836. PRibTrfase_dom.
IPR029057. PRTase-like.
IPR010079. Xanthine_PRibTrfase.
PANTHERiPTHR43864:SF1. PTHR43864:SF1. 1 hit.
PfamiView protein in Pfam
PF00156. Pribosyltran. 1 hit.
SUPFAMiSSF53271. SSF53271. 1 hit.
TIGRFAMsiTIGR01744. XPRTase. 1 hit.

Sequencei

Sequence statusi: Complete.

B8DUR4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQELEERIRE QGVVKPGNVL KVDAFLNHQC DVRLFDHMGA AWAEHFNNKH
60 70 80 90 100
ITKILTIEAS GIGIACVAAT HFDDVPVVFA KKAQSINLDG EQYVTHVYSF
110 120 130 140 150
TKQKEFPVIV SKKYLNAGDR VLLIDDFLAN GKALNGLIEL CESAGAIVEG
160 170 180 190
IGIAIEKGFQ GGGDALREAG YDLDSLAIVE SMDAETGAIE FRH
Length:193
Mass (Da):21,073
Last modified:March 3, 2009 - v1
Checksum:i272C76F5FEEBC433
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001213 Genomic DNA. Translation: ACL29743.1.
RefSeqiWP_004217806.1. NC_011835.1.

Genome annotation databases

EnsemblBacteriaiACL29743; ACL29743; BLA_1460.
GeneIDi29695194.
KEGGibla:BLA_1460.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001213 Genomic DNA. Translation: ACL29743.1.
RefSeqiWP_004217806.1. NC_011835.1.

3D structure databases

ProteinModelPortaliB8DUR4.
SMRiB8DUR4.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACL29743; ACL29743; BLA_1460.
GeneIDi29695194.
KEGGibla:BLA_1460.

Phylogenomic databases

HOGENOMiHOG000036777.
KOiK03816.
OMAiESQIAVS.

Enzyme and pathway databases

UniPathwayiUPA00602; UER00658.

Family and domain databases

CDDicd06223. PRTases_typeI. 1 hit.
HAMAPiMF_01184. XPRTase. 1 hit.
InterProiView protein in InterPro
IPR000836. PRibTrfase_dom.
IPR029057. PRTase-like.
IPR010079. Xanthine_PRibTrfase.
PANTHERiPTHR43864:SF1. PTHR43864:SF1. 1 hit.
PfamiView protein in Pfam
PF00156. Pribosyltran. 1 hit.
SUPFAMiSSF53271. SSF53271. 1 hit.
TIGRFAMsiTIGR01744. XPRTase. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiXPT_BIFA0
AccessioniPrimary (citable) accession number: B8DUR4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: March 3, 2009
Last modified: June 7, 2017
This is version 47 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.