ID   G6PI_HALMA              Reviewed;         436 AA.
AC   Q5UXU0;
DT   08-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 2.
DT   03-AUG-2022, entry version 82.
DE   RecName: Full=Probable 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=rrnAC3210;
OS   Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM
OS   B-1809) (Halobacterium marismortui).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Haloarculaceae; Haloarcula.
OX   NCBI_TaxID=272569;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809;
RX   PubMed=15520287; DOI=10.1101/gr.2700304;
RA   Baliga N.S., Bonneau R., Facciotti M.T., Pan M., Glusman G., Deutsch E.W.,
RA   Shannon P., Chiu Y., Weng R.S., Gan R.R., Hung P., Date S.V., Marcotte E.,
RA   Hood L., Ng W.V.;
RT   "Genome sequence of Haloarcula marismortui: a halophilic archaeon from the
RT   Dead Sea.";
RL   Genome Res. 14:2221-2234(2004).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAV47913.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AY596297; AAV47913.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_049939089.1; NZ_CP039138.1.
DR   AlphaFoldDB; Q5UXU0; -.
DR   SMR; Q5UXU0; -.
DR   STRING; 272569.rrnAC3210; -.
DR   EnsemblBacteria; AAV47913; AAV47913; rrnAC3210.
DR   GeneID; 40154013; -.
DR   KEGG; hma:rrnAC3210; -.
DR   PATRIC; fig|272569.17.peg.3747; -.
DR   eggNOG; arCOG00052; Archaea.
DR   HOGENOM; CLU_037303_1_0_2; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000001169; Chromosome I.
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; PS51463; P_GLUCOSE_ISOMERASE_3; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Gluconeogenesis; Glycolysis; Isomerase; Reference proteome.
FT   CHAIN           1..436
FT                   /note="Probable glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180778"
FT   ACT_SITE        272
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        293
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        404
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   436 AA;  46180 MW;  94D7F534A87BAB18 CRC64;
     MHVDIGAALA SAADPGVERA TLDDLDEQVA VAHERIEQGR NKGEFGYASL NLLEATDAET
     IHDAVAPVAD AESVITVGIG GSALGAKTIT EALAEDPGSH VVLDNVDPEH VRRTLDGLSL
     ADTAINVVSR SGTTAETLAN FLVVREAYED RGVDWTERIV VTTGESGPLR ALADQHDLPT
     LPVPEGVPGR FSALSAVGLV PPAILGIDIE GLLAGGQQAA DDLAPSLYDS PAYAYGAMAY
     ALEEAGATVN AVMPYAERLE SFGEWFAQLW AESLGKDGRG QTPARALGAT DQHSQLQLYR
     AGHRDKVVTF VRPRERADVS IPDPDHEDLS YLAGTDLGGL IDAEYEATVA SLPAADRPAL
     EVEIDRLDAE SVGELLYAME AACVLVGELA DVETFTQPAV EWGKNATRAL IRGEATDETA
     VIDERERLRI GETESL