ID   RPIA_SYNS3              Reviewed;         238 AA.
AC   Q0I7L2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 85.
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=sync_2363;
OS   Synechococcus sp. (strain CC9311).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=64471;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9311;
RX   PubMed=16938853; DOI=10.1073/pnas.0602963103;
RA   Palenik B., Ren Q., Dupont C.L., Myers G.S., Heidelberg J.F., Badger J.H.,
RA   Madupu R., Nelson W.C., Brinkac L.M., Dodson R.J., Durkin A.S.,
RA   Daugherty S.C., Sullivan S.A., Khouri H., Mohamoud Y., Halpin R.,
RA   Paulsen I.T.;
RT   "Genome sequence of Synechococcus CC9311: insights into adaptation to a
RT   coastal environment.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:13555-13559(2006).
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; CP000435; ABI46468.1; -; Genomic_DNA.
DR   RefSeq; WP_011620270.1; NC_008319.1.
DR   AlphaFoldDB; Q0I7L2; -.
DR   SMR; Q0I7L2; -.
DR   STRING; 64471.sync_2363; -.
DR   EnsemblBacteria; ABI46468; ABI46468; sync_2363.
DR   KEGG; syg:sync_2363; -.
DR   eggNOG; COG0120; Bacteria.
DR   HOGENOM; CLU_056590_1_1_3; -.
DR   OMA; YDWDEVN; -.
DR   OrthoDB; 1681738at2; -.
DR   UniPathway; UPA00115; UER00412.
DR   Proteomes; UP000001961; 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   PANTHER; PTHR11934; PTHR11934; 1.
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..238
FT                   /note="Ribose-5-phosphate isomerase A"
FT                   /id="PRO_1000017020"
FT   ACT_SITE        109
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         30..33
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         87..90
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         100..103
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         127
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
SQ   SEQUENCE   238 AA;  25077 MW;  99AC552A9C55DB90 CRC64;
     MSDLQTQMKQ AVAEAAVAQI RDGMVVGLGS GSTAALMIEG LGARLAAGQL RDIVGVTTSF
     QGEVLAAELG IPLRALNATD RIDLAIDGAD EVDPSFQLIK GGGACHVQEK LVADRAERFI
     VVVDSTKLVR CLNLDFLLPV EVLPGAWVQV QSRLKSMGGV AELRMATRKA GPVVTDQGNL
     VLDVRFENGI SDPIALERDI NNLPGVLENG LFVNLADEVL VGEIKDGVAG VRSLDRVG