ID   G6PI_SYNAS              Reviewed;         546 AA.
AC   Q2LRD0;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   21-FEB-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
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=SYNAS_07620;
GN   ORFNames=SYN_02950;
OS   Syntrophus aciditrophicus (strain SB).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Syntrophales; Syntrophaceae;
OC   Syntrophus.
OX   NCBI_TaxID=56780;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SB;
RX   PubMed=17442750; DOI=10.1073/pnas.0610456104;
RA   McInerney M.J., Rohlin L., Mouttaki H., Kim U., Krupp R.S.,
RA   Rios-Hernandez L., Sieber J., Struchtemeyer C.G., Bhattacharyya A.,
RA   Campbell J.W., Gunsalus R.P.;
RT   "The genome of Syntrophus aciditrophicus: life at the thermodynamic limit
RT   of microbial growth.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:7600-7605(2007).
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; CP000252; ABC76641.1; -; Genomic_DNA.
DR   RefSeq; WP_011416675.1; NC_007759.1.
DR   AlphaFoldDB; Q2LRD0; -.
DR   SMR; Q2LRD0; -.
DR   STRING; 56780.SYN_02950; -.
DR   EnsemblBacteria; ABC76641; ABC76641; SYN_02950.
DR   KEGG; sat:SYN_02950; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_017947_3_1_7; -.
DR   OMA; IGVWYIN; -.
DR   OrthoDB; 417261at2; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000001933; 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..546
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000252659"
FT   ACT_SITE        356
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        387
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        507
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   546 AA;  60934 MW;  5E29E4684DAE93A9 CRC64;
     MTASKKLTGC QAWKALAAHR RNWKLHLRDL FAGDPGRGER MTAEAVGLFL DYSKNFVTDE
     TLKLLLRLAE ETGLRGRIEA LFRGEKINLT ENRAALHVAL RSPKGTSIVV DGENVVPQVH
     DVLDRMAAFA VQVRSGSWKG HSGKGIRNVV NIGIGGSDLG PVMAYEALKY YSDRSLTFRF
     VSNIDGTDFA EAVQDLDAAE TLFIVASKTF TTLETMTNAS TARAWLLQGF KGDEKAVAKH
     FVAVSTNTAE VAKFGIDTAN MFGFWNWVGG RYSMDSAIGL STMLAIGPDN FRDMLAGFHA
     MDVHFRTAPF GVNLPVLMGL LTIWYNNFFA AETVAVLPYE QYLKRFPAYL QQLTMESNGK
     RVTLDGMEVD YQTSPIYWGE PGTNGQHSFY QLIHQGTKLI PCDFIAFVEP LHPLGRHHDL
     LMANVFAQAE ALAFGRTLEE VTSEGIPAWL APHKVFEGNR PSNTILAQRL TPETLGKLVA
     LYEHSVFTQS AIWNINPFDQ WGVELGKVLA QRVITELESR EEPELGHDSS TNAMIRRYRK
     FRERME