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Protein

Ribose-5-phosphate isomerase A

Gene

rpiA

Organism
Escherichia coli (strain ATCC 8739 / DSM 1576 / Crooks)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the reversible conversion of ribose-5-phosphate to ribulose 5-phosphate.UniRule annotation

Catalytic activityi

D-ribose 5-phosphate = D-ribulose 5-phosphate.UniRule annotation

Pathwayi: pentose phosphate pathway

This protein is involved in step 1 of the subpathway that synthesizes D-ribose 5-phosphate from D-ribulose 5-phosphate (non-oxidative stage).UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Ribose-5-phosphate isomerase A (rpiA)
This subpathway is part of the pathway pentose phosphate pathway, which is itself part of Carbohydrate degradation.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes D-ribose 5-phosphate from D-ribulose 5-phosphate (non-oxidative stage), the pathway pentose phosphate pathway and in Carbohydrate degradation.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei103Proton acceptorUniRule annotation1
Binding sitei121SubstrateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionIsomerase

Enzyme and pathway databases

UniPathwayiUPA00115; UER00412.

Names & Taxonomyi

Protein namesi
Recommended name:
Ribose-5-phosphate isomerase AUniRule annotation (EC:5.3.1.6UniRule annotation)
Alternative name(s):
Phosphoriboisomerase AUniRule annotation
Short name:
PRIUniRule annotation
Gene namesi
Name:rpiAUniRule annotation
Ordered Locus Names:EcolC_0796
OrganismiEscherichia coli (strain ATCC 8739 / DSM 1576 / Crooks)
Taxonomic identifieri481805 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000770661 – 219Ribose-5-phosphate isomerase AAdd BLAST219

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB1IT89.
SMRiB1IT89.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni28 – 31Substrate bindingUniRule annotation4
Regioni81 – 84Substrate bindingUniRule annotation4
Regioni94 – 97Substrate bindingUniRule annotation4

Sequence similaritiesi

Belongs to the ribose 5-phosphate isomerase family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105E66. Bacteria.
COG0120. LUCA.
HOGENOMiHOG000276368.
KOiK01807.
OMAiVAPMAYV.

Family and domain databases

CDDicd01398. RPI_A. 1 hit.
HAMAPiMF_00170. Rib_5P_isom_A. 1 hit.
InterProiView protein in InterPro
IPR004788. Ribose5P_isomerase_typA.
IPR020672. Ribose5P_isomerase_typA_subgr.
PfamiView protein in Pfam
PF06026. Rib_5-P_isom_A. 1 hit.
TIGRFAMsiTIGR00021. rpiA. 1 hit.

Sequencei

Sequence statusi: Complete.

B1IT89-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTQDELKKAV GWAALQYVQP GTIVGVGTGS TAAHFIDALG TMKGQIEGAV
60 70 80 90 100
SSSDASTEKL KSLGIHVFDL NEVDSLGIYV DGADEINGHM QMIKGGGAAL
110 120 130 140 150
TREKIIASVA EKFICIADAS KQVDILGKFP LPVEVIPMAR SAVARQLVKL
160 170 180 190 200
GGRPEYRQGV VTDNGNVILD VHGMEILDPI AMENAINAIP GVVTVGLFAN
210
RGADVALIGT PDGVKTIVK
Length:219
Mass (Da):22,860
Last modified:April 29, 2008 - v1
Checksum:iB53C49CC3DB188BC
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000946 Genomic DNA. Translation: ACA76468.1.
RefSeqiWP_000189743.1. NC_010468.1.

Genome annotation databases

EnsemblBacteriaiACA76468; ACA76468; EcolC_0796.
KEGGiecl:EcolC_0796.

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.

Entry informationi

Entry nameiRPIA_ECOLC
AccessioniPrimary (citable) accession number: B1IT89
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: April 29, 2008
Last modified: July 5, 2017
This is version 50 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

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