ID   G6PI_CHLPD              Reviewed;         559 AA.
AC   A1BFF9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 80.
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=Cpha266_1095;
OS   Chlorobium phaeobacteroides (strain DSM 266).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=290317;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 266;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Goltsman E.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Mikhailova N., Li T.,
RA   Overmann J., Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobium phaeobacteroides DSM 266.";
RL   Submitted (DEC-2006) 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; CP000492; ABL65136.1; -; Genomic_DNA.
DR   RefSeq; WP_011744962.1; NC_008639.1.
DR   AlphaFoldDB; A1BFF9; -.
DR   SMR; A1BFF9; -.
DR   STRING; 290317.Cpha266_1095; -.
DR   EnsemblBacteria; ABL65136; ABL65136; Cpha266_1095.
DR   KEGG; cph:Cpha266_1095; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_017947_3_1_10; -.
DR   OMA; IGVWYIN; -.
DR   OrthoDB; 417261at2; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000008701; Chromosome.
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; Reference proteome.
FT   CHAIN           1..559
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_1000013951"
FT   ACT_SITE        352
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        383
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        511
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   559 AA;  63299 MW;  E5D48385E1B241FD CRC64;
     MELSRSAAWS ALVFHKHEVD KKTMRDMFAG DSDRFVKFSL SWKEMLLDYS KNRITSRTME
     LLLELAHSAG VDEKRQQMFQ GAPINFTENR SVLHTALRRP PGYVLEVDGL NIGDEIAGVL
     FQMKNFCEKV ISGKWKGYTG KSITDVVNIG IGGSDLGPYM VTEALKPFAH GGLDVHFVSN
     IDGTHIRETL KRLDPETTLF IIASKTFTTQ ETLTNAMSAR EWFLARAVEE EYIKKHFAAV
     STNQEKVVEF GIDDANMFRF WDWVGGRYSL WSSIGLSIAL YLGFNRFEEL LAGAHAMDEH
     FLNEPFNRNI PVILALLGIW YRNFFDAASH AVIPYDQYLH RFPAYLQQLD MESNGKRVDE
     NGHTVTHATG PVIWGEPGTN AQHAFFQLLH QGPDLIPADF IVPLKSQNPS GEHHDMLLAN
     CFAQTEALMK GKTEQEVRAE LSDAGYDEAD IQKLFQHKVF SGNRPTNTIL VHELNPFMLG
     SLIAMYEHKV FVQGVIWRIN SFDQWGVELG KQLARTILPE IQSAEAVTAH DASTNALINM
     ARTFREENIR KESAQLSFF