ID   G6PI_CAUVC              Reviewed;         539 AA.
AC   Q9ABK5;
DT   02-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   27-MAR-2024, entry version 107.
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=CC_0222;
OS   Caulobacter vibrioides (strain ATCC 19089 / CB15) (Caulobacter crescentus).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC   Caulobacteraceae; Caulobacter.
OX   NCBI_TaxID=190650;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 19089 / CB15;
RX   PubMed=11259647; DOI=10.1073/pnas.061029298;
RA   Nierman W.C., Feldblyum T.V., Laub M.T., Paulsen I.T., Nelson K.E.,
RA   Eisen J.A., Heidelberg J.F., Alley M.R.K., Ohta N., Maddock J.R.,
RA   Potocka I., Nelson W.C., Newton A., Stephens C., Phadke N.D., Ely B.,
RA   DeBoy R.T., Dodson R.J., Durkin A.S., Gwinn M.L., Haft D.H., Kolonay J.F.,
RA   Smit J., Craven M.B., Khouri H.M., Shetty J., Berry K.J., Utterback T.R.,
RA   Tran K., Wolf A.M., Vamathevan J.J., Ermolaeva M.D., White O.,
RA   Salzberg S.L., Venter J.C., Shapiro L., Fraser C.M.;
RT   "Complete genome sequence of Caulobacter crescentus.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:4136-4141(2001).
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; AE005673; AAK22209.1; -; Genomic_DNA.
DR   PIR; E87276; E87276.
DR   RefSeq; NP_419041.1; NC_002696.2.
DR   RefSeq; WP_010918111.1; NC_002696.2.
DR   AlphaFoldDB; Q9ABK5; -.
DR   SMR; Q9ABK5; -.
DR   STRING; 190650.CC_0222; -.
DR   EnsemblBacteria; AAK22209; AAK22209; CC_0222.
DR   KEGG; ccr:CC_0222; -.
DR   PATRIC; fig|190650.5.peg.218; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_017947_3_1_5; -.
DR   BioCyc; CAULO:CC0222-MONOMER; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000001816; 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; GLUCOSE-6-PHOSPHATE ISOMERASE; 1.
DR   PANTHER; PTHR11469:SF1; GLUCOSE-6-PHOSPHATE ISOMERASE; 1.
DR   Pfam; PF00342; PGI; 1.
DR   PRINTS; PR00662; G6PISOMERASE.
DR   SUPFAM; SSF53697; SIS domain; 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..539
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180617"
FT   REGION          519..539
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        349
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        380
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        508
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   539 AA;  57526 MW;  B233DFBAF7FD1595 CRC64;
     MADLDAAWTR LEAAAKAAGD KRIVEFFDAE PGRLDALTLD VAGLHLDLSK QAWDEAGLEA
     ALDLAHAADV EGARARMFDG EAINSSEGRA VLHTALRAPA GADVKALGQP VMAEVDAVRQ
     RMKAFAQAVR SGAIKGATGK PFKAILHIGI GGSDLGPRLL WDALRPVKPS IDLRFVANVD
     GAEFALTTAD MDPEETLVMV VSKTFTTQET MANAGAARAW LVAALGEQGA NQHLAAISTA
     LDKTAAFGVP DDRVFGFWDW VGGRYSLWSS VSLSVAVAAG WDAFQGFLDG GAAMDEHFRT
     APLEQNAPVL VALAQIFNRN GLDRRARSVV PYSHRLRRLA AFLQQLEMES NGKSVGPDGQ
     PAKRGTATVV FGDEGTNVQH AYFQCMHQGT DITPMELIGV AKSDEGPAGM HEKLLSNLLA
     QAEAFMVGRT TDDVVAELTA KGVSDAEIAT LAPQRTFAGN RPSTLVLLDR LTPQTFGALI
     ALYEHKTFVE GVIWGINSFD QWGVELGKVM ANRILPELES GASGQHDPST AGLIQRLKR
//