ID   G6PI_GEOSM              Reviewed;         530 AA.
AC   C6E5H7;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-SEP-2009, sequence version 1.
DT   27-MAR-2024, entry version 62.
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};
GN   OrderedLocusNames=GM21_3479;
OS   Geobacter sp. (strain M21).
OC   Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Geobacterales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=443144;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M21;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Saunders E., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Lovley D.;
RT   "Complete sequence of Geobacter sp. M21.";
RL   Submitted (JUL-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001661; ACT19501.1; -; Genomic_DNA.
DR   AlphaFoldDB; C6E5H7; -.
DR   SMR; C6E5H7; -.
DR   STRING; 443144.GM21_3479; -.
DR   KEGG; gem:GM21_3479; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_033288_0_0_7; -.
DR   OrthoDB; 140919at2; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
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   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; GLUCOSE-6-PHOSPHATE ISOMERASE; 1.
DR   PANTHER; PTHR11469:SF1; GLUCOSE-6-PHOSPHATE ISOMERASE; 1.
DR   Pfam; PF00342; PGI; 1.
DR   PRINTS; PR00662; G6PISOMERASE.
DR   SUPFAM; SSF53697; SIS domain; 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..530
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_1000206366"
FT   ACT_SITE        322
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        351
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        455
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   530 AA;  58240 MW;  5D843C4E881B5B6A CRC64;
     MQKKQLWERY KNLLYHDAEL ELSVDTSRID FPEGFLEEME PRLQQAYQEM EALEKGAVAN
     PDENRMVGHY WLRAPEQAPE AALSEEITST LAAIKAFASS VHGGNIAAPD GHRFTDLLII
     GIGGSALGPQ FVADSLGGPG DRLRIWFFDN TDPDGMDKVL SRIGTALKQT LVVVISKSGG
     TKETRNGMLE ARRAFERAGL HFAAHAVAVT GSGSELDGTA SWESWLGVFP MWDWVGGRTS
     VTSAVGLLPA ALQGIDVERL LAGARACDQK TRSRVTRENP AALLALSWFH ATRGKGARDM
     VLLPYKDRLL LFSRYLQQLI MESLGKELDR DGNRVLQGIA VYGNKGSTDQ HAYVQQLREG
     VHNFFVTFIE VLKDREGPSL EVEPGATSGD YLSGFFQGTR AALYEKGRES VTITVRELSP
     VSIGALIALY ERAVGLYASL VNVNAYHQPG VEAGKKAAGA VLKLQGEIVE MLRRQPNREF
     TGEEMALALA RPEEVETVFM ILRHLAANGD HGVSVTVKDK IWENKYRSKG
//