A0A2R8CPY6 · A0A2R8CPY6_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 site52-535-phospho-alpha-D-ribose 1-diphosphate (UniProtKB | ChEBI)
Binding site103-1115-phospho-alpha-D-ribose 1-diphosphate (UniProtKB | ChEBI)
Binding site104Mg2+ (UniProtKB | ChEBI)
Binding site107guanine (UniProtKB | ChEBI)
Binding site107xanthine (UniProtKB | ChEBI)
Binding site107-111GMP (UniProtKB | ChEBI)
Binding site149-150GMP (UniProtKB | ChEBI)
Binding site150guanine (UniProtKB | ChEBI)
Binding site150xanthine (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentcytosol
Cellular Componentplasma membrane
Molecular Functionguanine phosphoribosyltransferase activity
Molecular Functionhypoxanthine phosphoribosyltransferase activity
Molecular Functionmagnesium ion binding
Molecular Functionxanthine phosphoribosyltransferase activity
Biological ProcessGMP salvage
Biological ProcessIMP 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
      KSP9073_02976

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • EAod3
  • Taxonomic lineage
    Bacteria > Pseudomonadota > Gammaproteobacteria > Oceanospirillales > Halomonadaceae > Kushneria

Accessions

  • Primary accession
    A0A2R8CPY6

Proteomes

Subcellular Location

Cell membrane
; Peripheral membrane protein

Keywords

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain31-158Phosphoribosyltransferase

Sequence similarities

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    173
  • Mass (Da)
    19,764
  • Last updated
    2018-06-20 v1
  • Checksum
    812D6614AC32713D
MRVSPDAQDISMSTERYHNQFTISWDRLHRDVRMLCHQLVGRDFKGIVAVTRGGLIPAALIARELDIRLIDTVCIKSYEHMEQSGINVLKGIDHDGDGWLLVDDLVDTGKTAGAVREMLPRAHFVTIYAKPEGRPMVDQYLTEVAQDTWIQFPWDMGVSFVEPLVDQLRTRKE

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
ONZI01000004
EMBL· GenBank· DDBJ
SPJ34929.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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