ID   G6PI_GEOSL              Reviewed;         529 AA.
AC   Q74DK5;
DT   29-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 99.
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=GSU1311;
OS   Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=243231;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51573 / DSM 12127 / PCA;
RX   PubMed=14671304; DOI=10.1126/science.1088727;
RA   Methe B.A., Nelson K.E., Eisen J.A., Paulsen I.T., Nelson W.C.,
RA   Heidelberg J.F., Wu D., Wu M., Ward N.L., Beanan M.J., Dodson R.J.,
RA   Madupu R., Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S.,
RA   Gwinn M.L., Kolonay J.F., Sullivan S.A., Haft D.H., Selengut J.,
RA   Davidsen T.M., Zafar N., White O., Tran B., Romero C., Forberger H.A.,
RA   Weidman J.F., Khouri H.M., Feldblyum T.V., Utterback T.R., Van Aken S.E.,
RA   Lovley D.R., Fraser C.M.;
RT   "Genome of Geobacter sulfurreducens: metal reduction in subsurface
RT   environments.";
RL   Science 302:1967-1969(2003).
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; AE017180; AAR34687.1; -; Genomic_DNA.
DR   RefSeq; NP_952364.1; NC_002939.5.
DR   RefSeq; WP_010941965.1; NC_002939.5.
DR   AlphaFoldDB; Q74DK5; -.
DR   SMR; Q74DK5; -.
DR   STRING; 243231.GSU1311; -.
DR   EnsemblBacteria; AAR34687; AAR34687; GSU1311.
DR   KEGG; gsu:GSU1311; -.
DR   PATRIC; fig|243231.5.peg.1308; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_033288_0_0_7; -.
DR   InParanoid; Q74DK5; -.
DR   OMA; IGVWYIN; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000000577; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR   GO; GO:0004347; F:glucose-6-phosphate isomerase activity; IBA:GO_Central.
DR   GO; GO:0048029; F:monosaccharide binding; IBA:GO_Central.
DR   GO; GO:0006094; P:gluconeogenesis; IBA:GO_Central.
DR   GO; GO:0051156; P:glucose 6-phosphate metabolic process; IBA:GO_Central.
DR   GO; GO:0006096; P:glycolytic process; IBA:GO_Central.
DR   CDD; cd05015; SIS_PGI_1; 1.
DR   CDD; cd05016; SIS_PGI_2; 1.
DR   HAMAP; MF_00473; G6P_isomerase; 1.
DR   InterPro; IPR001672; G6P_Isomerase.
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; 2.
DR   PRINTS; PR00662; G6PISOMERASE.
DR   SUPFAM; SSF53697; SSF53697; 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; Reference proteome.
FT   CHAIN           1..529
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180647"
FT   ACT_SITE        323
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        352
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        456
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   529 AA;  57259 MW;  5D0B984F4A2316CD CRC64;
     MNAHELWQRY QTYLLFDADT GLILDVSRMA FSDDFFASME PAMQRAFDAM ERLEAGEIAN
     PDENRMVGHY WLRSPELAPD PAIAAAIRET VDRVTAFAAD VHNGVVTAPR ARLFRNVLVI
     GIGGSALGPQ FVADALGGHG DRMRPFFFDN TDPDGMDRVL ETLGADGLAE TLAIVISKSG
     GTKETRNGML EAEAAYRRAG LDFSRHAVAV TGAGSELDRT AEAGGWLCRF PMWDWVGGRT
     SETSAVGLLP AALQGIPIRD FLDGARTCDT LTRRRETLRN PAALLALMWH HATRGSGSRD
     MVVLPYKDRL LLFSRYLQQL IMESIGKELD LDGTVVNQGL TVYGNKGSTD QHAYVQQLRE
     GTNNFFVAFI EVLKDREGAS LAVEPGFTSG DYLSGFLQGT RTALSEKGRE SLTITIPAIT
     PRTVGVLVAL FERAVGLYAS LVNINAYHQP GVEAGKKAAG GVLALTGEAL AFLRREGGTL
     SATEIAAALG RPEEAETIFR SLLHAAANPD HGVVMEAASP LTRSRFSAR