ID   G6PI_CAMJE              Reviewed;         406 AA.
AC   Q9PMD4; Q0P890;
DT   02-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 108.
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=Cj1535c;
OS   Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC
OS   11168).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Campylobacteraceae; Campylobacter.
OX   NCBI_TaxID=192222;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700819 / NCTC 11168;
RX   PubMed=10688204; DOI=10.1038/35001088;
RA   Parkhill J., Wren B.W., Mungall K.L., Ketley J.M., Churcher C.M.,
RA   Basham D., Chillingworth T., Davies R.M., Feltwell T., Holroyd S.,
RA   Jagels K., Karlyshev A.V., Moule S., Pallen M.J., Penn C.W., Quail M.A.,
RA   Rajandream M.A., Rutherford K.M., van Vliet A.H.M., Whitehead S.,
RA   Barrell B.G.;
RT   "The genome sequence of the food-borne pathogen Campylobacter jejuni
RT   reveals hypervariable sequences.";
RL   Nature 403:665-668(2000).
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, ECO:0000305}.
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DR   EMBL; AL111168; CAL35635.1; -; Genomic_DNA.
DR   PIR; E81300; E81300.
DR   RefSeq; WP_002855462.1; NC_002163.1.
DR   RefSeq; YP_002344907.1; NC_002163.1.
DR   AlphaFoldDB; Q9PMD4; -.
DR   SMR; Q9PMD4; -.
DR   IntAct; Q9PMD4; 47.
DR   STRING; 192222.Cj1535c; -.
DR   PaxDb; Q9PMD4; -.
DR   PRIDE; Q9PMD4; -.
DR   EnsemblBacteria; CAL35635; CAL35635; Cj1535c.
DR   GeneID; 905817; -.
DR   KEGG; cje:Cj1535c; -.
DR   PATRIC; fig|192222.6.peg.1512; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_037303_1_0_7; -.
DR   OMA; CPAYAYG; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000000799; 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   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; 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..406
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180616"
FT   ACT_SITE        259
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        284
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        397
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   406 AA;  46013 MW;  F5BD432A86E482CE CRC64;
     MLNNTLFFKQ SEIHTISSYA NRINDEVKSG DIGYYHLIDT SLNLIDESLQ FIQDKEYVKN
     IVLVGMGGSS CGVKALRDML FNEKSNQREL FILDNTSSHS FNKTLEKIKL EESLFLIISK
     TGSTIEVVSL FKLLIEHFKL DMQELKKYFV FITDKDSKLH QEGENLGIKC FFIPANVGGR
     FSILSAVGIV PLCFCGYNAK ALLEGAKACF EDFFTHKKDE ILQKAYHYCT HKNANINVLF
     SYSDAFKGFN EWYIQLIAES LGKKQGYKRI GLTPIALIGA RDQHSFLQLI MDGPKNKTVT
     FLKIKDAQKA PIIPDIHFKF LDSLSNKVNL HELLNAQCDA TMHALIAENL SVDVIELEKL
     DAWHAGYLMY YYELFTSTCG VMLGINTYDQ PGVEVGKLIL KNILNS