ID   G6PI_CERSK              Reviewed;         533 AA.
AC   B9KRX7;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 63.
DE   RecName: Full=Glucose-6-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=GPI {ECO:0000255|HAMAP-Rule:MF_00473};
DE            EC=5.3.1.9 {ECO:0000255|HAMAP-Rule:MF_00473};
DE   AltName: Full=Phosphoglucose isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=PGI {ECO:0000255|HAMAP-Rule:MF_00473};
DE   AltName: Full=Phosphohexose isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=PHI {ECO:0000255|HAMAP-Rule:MF_00473};
GN   Name=pgi {ECO:0000255|HAMAP-Rule:MF_00473}; OrderedLocusNames=RSKD131_1059;
OS   Cereibacter sphaeroides (strain KD131 / KCTC 12085) (Rhodobacter
OS   sphaeroides).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Cereibacter.
OX   NCBI_TaxID=557760;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KD131 / KCTC 12085;
RX   PubMed=19028901; DOI=10.1128/jb.01565-08;
RA   Lim S.-K., Kim S.J., Cha S.H., Oh Y.-K., Rhee H.-J., Kim M.-S., Lee J.K.;
RT   "Complete genome sequence of Rhodobacter sphaeroides KD131.";
RL   J. Bacteriol. 191:1118-1119(2009).
CC   -!- FUNCTION: Catalyzes the reversible isomerization of glucose-6-phosphate
CC       to fructose-6-phosphate. {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=alpha-D-glucose 6-phosphate = beta-D-fructose 6-phosphate;
CC         Xref=Rhea:RHEA:11816, ChEBI:CHEBI:57634, ChEBI:CHEBI:58225;
CC         EC=5.3.1.9; Evidence={ECO:0000255|HAMAP-Rule:MF_00473};
CC   -!- PATHWAY: Carbohydrate biosynthesis; gluconeogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- PATHWAY: Carbohydrate degradation; glycolysis; D-glyceraldehyde 3-
CC       phosphate and glycerone phosphate from D-glucose: step 2/4.
CC       {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- SIMILARITY: Belongs to the GPI family. {ECO:0000255|HAMAP-
CC       Rule:MF_00473}.
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DR   EMBL; CP001150; ACM00919.1; -; Genomic_DNA.
DR   RefSeq; WP_015920489.1; NC_011963.1.
DR   AlphaFoldDB; B9KRX7; -.
DR   SMR; B9KRX7; -.
DR   EnsemblBacteria; ACM00919; ACM00919; RSKD131_1059.
DR   GeneID; 67446489; -.
DR   KEGG; rsk:RSKD131_1059; -.
DR   HOGENOM; CLU_017947_3_1_5; -.
DR   OMA; IGVWYIN; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000001597; Chromosome 1.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR   GO; GO:0004347; F:glucose-6-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006094; P:gluconeogenesis; IEA:UniProtKB-UniRule.
DR   GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-UniRule.
DR   CDD; cd05015; SIS_PGI_1; 1.
DR   CDD; cd05016; SIS_PGI_2; 1.
DR   Gene3D; 1.10.1390.10; -; 1.
DR   HAMAP; MF_00473; G6P_isomerase; 1.
DR   InterPro; IPR001672; G6P_Isomerase.
DR   InterPro; IPR023096; G6P_Isomerase_C.
DR   InterPro; IPR018189; Phosphoglucose_isomerase_CS.
DR   InterPro; IPR046348; SIS_dom_sf.
DR   InterPro; IPR035476; SIS_PGI_1.
DR   InterPro; IPR035482; SIS_PGI_2.
DR   PANTHER; PTHR11469; PTHR11469; 1.
DR   Pfam; PF00342; PGI; 1.
DR   PRINTS; PR00662; G6PISOMERASE.
DR   SUPFAM; SSF53697; SSF53697; 1.
DR   PROSITE; PS00765; P_GLUCOSE_ISOMERASE_1; 1.
DR   PROSITE; PS00174; P_GLUCOSE_ISOMERASE_2; 1.
DR   PROSITE; PS51463; P_GLUCOSE_ISOMERASE_3; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Gluconeogenesis; Glycolysis; Isomerase.
FT   CHAIN           1..533
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_1000135537"
FT   ACT_SITE        341
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        372
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        501
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   533 AA;  58310 MW;  FD6220A770E35435 CRC64;
     MKQIWQALKA HQQAVEHRAI LDLFADPRRA ETFSTRLGDM LFDWSKTNID HTARDLLIDL
     AGAAGVAEKR EAMFSGAKIN ETEGRAVLHT ALRNMDRPVR VDGVDVTPAL RETHARMQAF
     VRDLRSGRFK GQGGPITDVV NIGIGGSDLG PAMACLALAP YADGPRCQFV SNVDGAHIHD
     TLKDLDPATT LVIVASKTFT TIETMTNAET AKRWMATRVS DPAAQFAAVS TAADRTAAFG
     IDASRVFGFE DWVGGRYSMW GPIGLALMIA IGPEEFDAFL AGGAEMDRHF REAPFAENLP
     VLLALVGLWH NQICGHATRA VLPYDQRLAR LPAYLQQLEM ESNGKRVAMD GHELTHHSGP
     IVWGEPGTNG QHAFYQLIHQ GSRIVPCEFL VAREGHEPDL AHQHLLLVSN CLAQSEALLR
     GRSVEEARAI LARKGLTGSE LERQARHRVF PGNRPSTVLA YEKLTPATLG RIVALYEHRV
     FVEGVILGIN SYDQWGVELG KELALALQPM LEGRAGTEGK DGSTAQLVSY LRC