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A0A5J5E9L6 · A0A5J5E9L6_9BIFI

Function

function

Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.
The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Requires a divalent cation, most likely magnesium in vivo, as an electrophilic catalyst to aid phosphoryl group transfer. It is the chelate of the metal and the nucleotide that is the actual substrate.

Activity regulation

Activated by a monovalent cation that binds near, but not in, the active site. The most likely occupant of the site in vivo is potassium. Ion binding induces a conformational change that may alter substrate affinity.

Pathway

Carbohydrate metabolism; D-ribose degradation; D-ribose 5-phosphate from beta-D-ribopyranose: step 2/2.

Features

Showing features for binding site, active site.

Type
IDPosition(s)Description
Binding site26-28substrate
Binding site54-58substrate
Binding site154substrate
Binding site199ATP (UniProtKB | ChEBI)
Binding site237-242ATP (UniProtKB | ChEBI)
Binding site263K+ (UniProtKB | ChEBI)
Binding site265K+ (UniProtKB | ChEBI)
Binding site268-269ATP (UniProtKB | ChEBI)
Active site269Proton acceptor
Binding site269substrate
Binding site299K+ (UniProtKB | ChEBI)
Binding site302K+ (UniProtKB | ChEBI)
Binding site304K+ (UniProtKB | ChEBI)

GO annotations

AspectTerm
Cellular Componentcytosol
Molecular FunctionATP binding
Molecular Functionmetal ion binding
Molecular Functionribokinase activity
Biological ProcessD-ribose catabolic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Ribokinase
  • EC number
  • Short names
    RK

Gene names

    • Name
      rbsK
    • ORF names
      EMO92_02595

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • RST19
  • Taxonomic lineage
    Bacteria > Actinomycetota > Actinomycetes > Bifidobacteriales > Bifidobacteriaceae > Bifidobacterium

Accessions

  • Primary accession
    A0A5J5E9L6

Proteomes

Subcellular Location

Keywords

Interaction

Subunit

Homodimer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain19-308Carbohydrate kinase PfkB

Sequence similarities

Belongs to the carbohydrate kinase PfkB family. Ribokinase subfamily.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    320
  • Mass (Da)
    33,005
  • Last updated
    2019-12-11 v1
  • MD5 Checksum
    EAF4323F819B6D25914750E0C80B6B42
MPEPVRDRLEALGKAQGAVIVVGSMNADYTVSTKRLPKPGETVNGGAMKVLPGGKGANQAAAAARLGANVQLLGAVGEDDNANFLLSKLDEAGVDTADILHVEGPSGTTLITVSAEGENTIVYSPGSNAKVSAGYVQSHRDTIASCAVLGLCLESPIATVIAAAQTAHDAGVTVLLNDSPFMDELPHELVEATDILLVNQHEVAQLLGLPDTDSVDYDWYEVTSRFVDYGFGRAIVTLGASGSIVIEDGRWHRVSAAQVDAVDTTGCGDSFMGTVLAGLAAGFTLLQSAQIGSYVSAYAATKLGAQSAYGTAEEVIAYFS

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
RZUG01000003
EMBL· GenBank· DDBJ
KAA8826236.1
EMBL· GenBank· DDBJ
Genomic DNA

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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