Q6GBY8 · KPRS_STAAS

Function

function

Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) via the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib-5-P).

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 2 Mg2+ ions per subunit.

Pathway

Metabolic intermediate biosynthesis; 5-phospho-alpha-D-ribose 1-diphosphate biosynthesis; 5-phospho-alpha-D-ribose 1-diphosphate from D-ribose 5-phosphate (route I): step 1/1.

Features

Showing features for binding site, active site.

Type
IDPosition(s)Description
Binding site44-46ATP (UniProtKB | ChEBI)
Binding site103-104ATP (UniProtKB | ChEBI)
Binding site137Mg2+ 1 (UniProtKB | ChEBI)
Binding site179Mg2+ 2 (UniProtKB | ChEBI)
Active site202
Binding site204D-ribose 5-phosphate (UniProtKB | ChEBI)
Binding site228D-ribose 5-phosphate (UniProtKB | ChEBI)
Binding site232-236D-ribose 5-phosphate (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentcytoplasm
Cellular Componentribose phosphate diphosphokinase complex
Molecular FunctionATP binding
Molecular Functionkinase activity
Molecular Functionmagnesium ion binding
Molecular Functionribose phosphate diphosphokinase activity
Biological Process5-phosphoribose 1-diphosphate biosynthetic process
Biological Processphosphorylation
Biological Processpurine nucleotide biosynthetic process
Biological Processribonucleoside monophosphate biosynthetic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Ribose-phosphate pyrophosphokinase
  • EC number
  • Short names
    RPPK
  • Alternative names
    • 5-phospho-D-ribosyl alpha-1-diphosphate synthase
    • Phosphoribosyl diphosphate synthase
    • Phosphoribosyl pyrophosphate synthase
      (P-Rib-PP synthase
      ; PRPP synthase
      ; PRPPase
      )

Gene names

    • Name
      prs
    • Ordered locus names
      SAS0457

Organism names

Accessions

  • Primary accession
    Q6GBY8

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for chain.

TypeIDPosition(s)Description
ChainPRO_00001411901-321Ribose-phosphate pyrophosphokinase

Interaction

Subunit

Homohexamer.

Structure

Family & Domains

Sequence similarities

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    321
  • Mass (Da)
    35,284
  • Last updated
    2004-07-19 v1
  • Checksum
    70A955AA62C9415E
MLNNEYKNSSLKIFSLKGNEALAQEVADQVGIELGKCSVKRFSDGEIQINIEESIRGCDVFIIQPTSYPVNLHLMELLIMIDACKRASAATINIVVPYYGYARQDRKARSREPITAKLVANLIETAGATRMIALDLHAPQIQGFFDIPIDHLMGVPILAKHFKDDPNINPEECVVVSPDHGGVTRARKLADILKTPIAIIDKRRPRPNVAEVMNIVGEIEGRTAIIIDDIIDTAGTITLAAQALKDKGAKEVYACCTHPVLSGPAKERIENSAIKELIVTNSIHLDEDRKPSNTKELSVAGLIAQAIIRVYERESVSVLFD

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
BX571857
EMBL· GenBank· DDBJ
CAG42232.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
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