A0A1A9EW44 · A0A1A9EW44_9GAMM

  • Protein
    Xanthine-guanine phosphoribosyltransferase
  • Gene
    gpt
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    4/5

Function

function

Purine salvage pathway enzyme that catalyzes the transfer of the ribosyl-5-phosphate group from 5-phospho-alpha-D-ribose 1-diphosphate (PRPP) to the N9 position of the 6-oxopurines guanine and xanthine to form the corresponding ribonucleotides GMP (guanosine 5'-monophosphate) and XMP (xanthosine 5'-monophosphate), with the release of PPi. To a lesser extent, also acts on hypoxanthine.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Pathway

Purine metabolism; GMP biosynthesis via salvage pathway; GMP from guanine: step 1/1.
Purine metabolism; XMP biosynthesis via salvage pathway; XMP from xanthine: step 1/1.

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site42-435-phospho-alpha-D-ribose 1-diphosphate (UniProtKB | ChEBI)
Binding site101-1095-phospho-alpha-D-ribose 1-diphosphate (UniProtKB | ChEBI)
Binding site102Mg2+ (UniProtKB | ChEBI)
Binding site105guanine (UniProtKB | ChEBI)
Binding site105xanthine (UniProtKB | ChEBI)
Binding site105-109GMP (UniProtKB | ChEBI)
Binding site147-148GMP (UniProtKB | ChEBI)
Binding site148guanine (UniProtKB | ChEBI)
Binding site148xanthine (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentplasma membrane
Molecular Functionguanine phosphoribosyltransferase activity
Molecular Functionhypoxanthine phosphoribosyltransferase activity
Molecular Functionmagnesium ion binding
Molecular Functionxanthine phosphoribosyltransferase activity
Biological ProcessGMP salvage
Biological Processpurine ribonucleoside salvage
Biological ProcessXMP salvage

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Xanthine-guanine phosphoribosyltransferase
  • EC number
  • Short names
    XGPRT
  • Alternative names
    • Xanthine phosphoribosyltransferase

Gene names

    • Name
      gpt
    • ORF names
      A8C75_06270

Organism names

  • Taxonomic identifier
  • Strain
    • ST58-10
  • Taxonomic lineage
    Bacteria > Pseudomonadota > Gammaproteobacteria > Oceanospirillales > Oceanospirillaceae > Marinobacterium

Accessions

  • Primary accession
    A0A1A9EW44

Proteomes

Subcellular Location

Cell membrane
; Peripheral membrane protein

Keywords

Interaction

Subunit

Homotetramer.

Protein-protein interaction databases

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain13-158Phosphoribosyltransferase

Sequence similarities

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    165
  • Mass (Da)
    18,365
  • Last updated
    2016-10-05 v1
  • Checksum
    27303C6BB7E11360
MASVPYRKDFPVSWEELHRNARALSWRLLELGPWKGIIAITRGGMVPAAILARELDIRLIDTICVTSYDKSADNDGAAMVRGDLNIIKSVEGDGEGMILIDDLVDTGKTAQCVRDLLPKAHFATIYAKPAGKPLVDTFITEVSQDTWIRFPWDMDYAFAPPMADR

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP015839
EMBL· GenBank· DDBJ
ANG62136.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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