ID   G6PI_FUSNN              Reviewed;         448 AA.
AC   Q8RHH5;
DT   02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2002, sequence version 1.
DT   03-AUG-2022, entry version 110.
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=FN2054;
OS   Fusobacterium nucleatum subsp. nucleatum (strain ATCC 25586 / DSM 15643 /
OS   BCRC 10681 / CIP 101130 / JCM 8532 / KCTC 2640 / LMG 13131 / VPI 4355).
OC   Bacteria; Fusobacteria; Fusobacteriales; Fusobacteriaceae; Fusobacterium.
OX   NCBI_TaxID=190304;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25586 / DSM 15643 / BCRC 10681 / CIP 101130 / JCM 8532 / KCTC
RC   2640 / LMG 13131 / VPI 4355;
RX   PubMed=11889109; DOI=10.1128/jb.184.7.2005-2018.2002;
RA   Kapatral V., Anderson I., Ivanova N., Reznik G., Los T., Lykidis A.,
RA   Bhattacharyya A., Bartman A., Gardner W., Grechkin G., Zhu L., Vasieva O.,
RA   Chu L., Kogan Y., Chaga O., Goltsman E., Bernal A., Larsen N., D'Souza M.,
RA   Walunas T., Pusch G., Haselkorn R., Fonstein M., Kyrpides N.C.,
RA   Overbeek R.;
RT   "Genome sequence and analysis of the oral bacterium Fusobacterium nucleatum
RT   strain ATCC 25586.";
RL   J. Bacteriol. 184:2005-2018(2002).
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; AE009951; AAL94138.1; -; Genomic_DNA.
DR   RefSeq; NP_602839.1; NC_003454.1.
DR   AlphaFoldDB; Q8RHH5; -.
DR   SMR; Q8RHH5; -.
DR   STRING; 190304.FN2054; -.
DR   PRIDE; Q8RHH5; -.
DR   EnsemblBacteria; AAL94138; AAL94138; FN2054.
DR   KEGG; fnu:FN2054; -.
DR   PATRIC; fig|190304.8.peg.516; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_037303_0_1_0; -.
DR   InParanoid; Q8RHH5; -.
DR   OMA; CPAYAYG; -.
DR   BioCyc; FNUC190304:G1FZS-541-MON; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000002521; 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; 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..448
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180645"
FT   ACT_SITE        288
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        309
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        423
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   448 AA;  50509 MW;  C9D4627AFD8DC68E CRC64;
     MKKINLDYSK VFNFISQDEL NQIKVSIDKV AEKLHNKSGA GNNFLGWLDL PINYDKEEFS
     RIKKASEKIK ADSDVLIVIG IGGSYLGARA VIECLSHSFF NSLNKEKRNA PEIYFAGQNI
     SGRYLKDLIE IIGDRDFSVN IISKSGTTTE PAIAFRVFKE LLENKYGEKA KDRIYVTTDK
     NKGALKKLAD EKGYEKFVIP DDVGGRFSVL TAVGLLPIAV AGINIDALMN GAQIAREDYS
     KDFADNDCYK YAAIRNILYK KNYNIEILAN YEPKFHYISE WWKQLYGESE GKDKKGIFPA
     SVDLTTDLHS MGQYIQDGRR NLMETILNVE NSDKDIVIKK EVEDLDGLNY LEGKGLSFVN
     NKAFEGTLLA HIDGGVPNLV INIPEVTAFN IGYLIYFFEK ACAISGYLLE VNPFDQPGVE
     SYKKNMFALL GKKGYEELSK ELNERLKK