ID   RPIA_SPHAL              Reviewed;         228 AA.
AC   Q1GX07;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   27-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=Ribose-5-phosphate isomerase A {ECO:0000255|HAMAP-Rule:MF_00170};
DE            EC=5.3.1.6 {ECO:0000255|HAMAP-Rule:MF_00170};
DE   AltName: Full=Phosphoriboisomerase A {ECO:0000255|HAMAP-Rule:MF_00170};
DE            Short=PRI {ECO:0000255|HAMAP-Rule:MF_00170};
GN   Name=rpiA {ECO:0000255|HAMAP-Rule:MF_00170}; OrderedLocusNames=Sala_0089;
OS   Sphingopyxis alaskensis (strain DSM 13593 / LMG 18877 / RB2256)
OS   (Sphingomonas alaskensis).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC   Sphingomonadaceae; Sphingopyxis.
OX   NCBI_TaxID=317655;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 13593 / LMG 18877 / RB2256;
RX   PubMed=19805210; DOI=10.1073/pnas.0903507106;
RA   Lauro F.M., McDougald D., Thomas T., Williams T.J., Egan S., Rice S.,
RA   DeMaere M.Z., Ting L., Ertan H., Johnson J., Ferriera S., Lapidus A.,
RA   Anderson I., Kyrpides N., Munk A.C., Detter C., Han C.S., Brown M.V.,
RA   Robb F.T., Kjelleberg S., Cavicchioli R.;
RT   "The genomic basis of trophic strategy in marine bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 106:15527-15533(2009).
CC   -!- FUNCTION: Catalyzes the reversible conversion of ribose-5-phosphate to
CC       ribulose 5-phosphate. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=aldehydo-D-ribose 5-phosphate = D-ribulose 5-phosphate;
CC         Xref=Rhea:RHEA:14657, ChEBI:CHEBI:58121, ChEBI:CHEBI:58273;
CC         EC=5.3.1.6; Evidence={ECO:0000255|HAMAP-Rule:MF_00170};
CC   -!- PATHWAY: Carbohydrate degradation; pentose phosphate pathway; D-ribose
CC       5-phosphate from D-ribulose 5-phosphate (non-oxidative stage): step
CC       1/1. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- SIMILARITY: Belongs to the ribose 5-phosphate isomerase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00170}.
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DR   EMBL; CP000356; ABF51815.1; -; Genomic_DNA.
DR   RefSeq; WP_003044927.1; NC_008048.1.
DR   AlphaFoldDB; Q1GX07; -.
DR   SMR; Q1GX07; -.
DR   STRING; 317655.Sala_0089; -.
DR   EnsemblBacteria; ABF51815; ABF51815; Sala_0089.
DR   KEGG; sal:Sala_0089; -.
DR   eggNOG; COG0120; Bacteria.
DR   HOGENOM; CLU_056590_1_0_5; -.
DR   OMA; FIDICDT; -.
DR   OrthoDB; 1681738at2; -.
DR   UniPathway; UPA00115; UER00412.
DR   Proteomes; UP000006578; Chromosome.
DR   GO; GO:0004751; F:ribose-5-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009052; P:pentose-phosphate shunt, non-oxidative branch; IEA:UniProtKB-UniRule.
DR   CDD; cd01398; RPI_A; 1.
DR   HAMAP; MF_00170; Rib_5P_isom_A; 1.
DR   InterPro; IPR037171; NagB/RpiA_transferase-like.
DR   InterPro; IPR020672; Ribose5P_isomerase_typA_subgr.
DR   InterPro; IPR004788; Ribose5P_isomerase_type_A.
DR   Pfam; PF06026; Rib_5-P_isom_A; 1.
DR   SUPFAM; SSF100950; SSF100950; 1.
DR   TIGRFAMs; TIGR00021; rpiA; 1.
PE   3: Inferred from homology;
KW   Isomerase; Reference proteome.
FT   CHAIN           1..228
FT                   /note="Ribose-5-phosphate isomerase A"
FT                   /id="PRO_1000017004"
FT   ACT_SITE        106
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         29..32
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         84..87
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         97..100
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         124
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
SQ   SEQUENCE   228 AA;  24200 MW;  AA58A33A4E934901 CRC64;
     MSNFVAEKSI AAVRAVDEVR DGMLVGLGTG STAAYAVKSL SERIKHGLRI TAVATSQATE
     ALALRLAVPL VPFQQLSAVD LTIDGADEID DRFQAIKGGG GALLREKITE SASTRVIIIA
     DSSKLVAQLG KFPLPVEVVP FATEFVRARL SALGARVTVR EAGGTPFLTD QGNYILDAAL
     DEIPRPREIA AAITTIPGVL EHGLFLDEID TIMIARGDMV EVRHRGEA