ID   ENO_NOSS1               Reviewed;         429 AA.
AC   Q8YRB0;
DT   27-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 122.
DE   RecName: Full=Enolase {ECO:0000255|HAMAP-Rule:MF_00318};
DE            EC=4.2.1.11 {ECO:0000255|HAMAP-Rule:MF_00318};
DE   AltName: Full=2-phospho-D-glycerate hydro-lyase {ECO:0000255|HAMAP-Rule:MF_00318};
DE   AltName: Full=2-phosphoglycerate dehydratase {ECO:0000255|HAMAP-Rule:MF_00318};
GN   Name=eno {ECO:0000255|HAMAP-Rule:MF_00318}; OrderedLocusNames=all3538;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- FUNCTION: Catalyzes the reversible conversion of 2-phosphoglycerate
CC       into phosphoenolpyruvate. It is essential for the degradation of
CC       carbohydrates via glycolysis. {ECO:0000255|HAMAP-Rule:MF_00318}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2R)-2-phosphoglycerate = H2O + phosphoenolpyruvate;
CC         Xref=Rhea:RHEA:10164, ChEBI:CHEBI:15377, ChEBI:CHEBI:58289,
CC         ChEBI:CHEBI:58702; EC=4.2.1.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00318};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00318};
CC   -!- ACTIVITY REGULATION: The covalent binding to the substrate causes
CC       inactivation of the enzyme, and possibly serves as a signal for the
CC       export of the protein. {ECO:0000255|HAMAP-Rule:MF_00318}.
CC   -!- PATHWAY: Carbohydrate degradation; glycolysis; pyruvate from D-
CC       glyceraldehyde 3-phosphate: step 4/5. {ECO:0000255|HAMAP-
CC       Rule:MF_00318}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00318}.
CC       Secreted {ECO:0000255|HAMAP-Rule:MF_00318}. Cell surface
CC       {ECO:0000255|HAMAP-Rule:MF_00318}. Note=Fractions of enolase are
CC       present in both the cytoplasm and on the cell surface. The export of
CC       enolase possibly depends on the covalent binding to the substrate; once
CC       secreted, it remains attached to the cell surface. {ECO:0000255|HAMAP-
CC       Rule:MF_00318}.
CC   -!- SIMILARITY: Belongs to the enolase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00318}.
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DR   EMBL; BA000019; BAB75237.1; -; Genomic_DNA.
DR   PIR; AC2248; AC2248.
DR   RefSeq; WP_010997688.1; NZ_RSCN01000034.1.
DR   AlphaFoldDB; Q8YRB0; -.
DR   SMR; Q8YRB0; -.
DR   STRING; 103690.17132671; -.
DR   EnsemblBacteria; BAB75237; BAB75237; BAB75237.
DR   KEGG; ana:all3538; -.
DR   eggNOG; COG0148; Bacteria.
DR   OMA; EFMIIPV; -.
DR   OrthoDB; 533698at2; -.
DR   UniPathway; UPA00109; UER00187.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0009986; C:cell surface; IEA:UniProtKB-SubCell.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0000015; C:phosphopyruvate hydratase complex; IEA:InterPro.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004634; F:phosphopyruvate hydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-UniRule.
DR   CDD; cd03313; enolase; 1.
DR   Gene3D; 3.20.20.120; -; 1.
DR   Gene3D; 3.30.390.10; -; 1.
DR   HAMAP; MF_00318; Enolase; 1.
DR   InterPro; IPR000941; Enolase.
DR   InterPro; IPR036849; Enolase-like_C_sf.
DR   InterPro; IPR029017; Enolase-like_N.
DR   InterPro; IPR020810; Enolase_C.
DR   InterPro; IPR020809; Enolase_CS.
DR   InterPro; IPR020811; Enolase_N.
DR   PANTHER; PTHR11902; PTHR11902; 1.
DR   Pfam; PF00113; Enolase_C; 1.
DR   Pfam; PF03952; Enolase_N; 1.
DR   PIRSF; PIRSF001400; Enolase; 1.
DR   PRINTS; PR00148; ENOLASE.
DR   SFLD; SFLDF00002; enolase; 1.
DR   SMART; SM01192; Enolase_C; 1.
DR   SMART; SM01193; Enolase_N; 1.
DR   SUPFAM; SSF51604; SSF51604; 1.
DR   SUPFAM; SSF54826; SSF54826; 1.
DR   TIGRFAMs; TIGR01060; eno; 1.
DR   PROSITE; PS00164; ENOLASE; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Glycolysis; Lyase; Magnesium; Metal-binding; Reference proteome;
KW   Secreted.
FT   CHAIN           1..429
FT                   /note="Enolase"
FT                   /id="PRO_0000133830"
FT   ACT_SITE        210
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   ACT_SITE        340
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         160
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         169
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         247
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         288
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         288
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         315
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         315
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         340
FT                   /ligand="substrate"
FT                   /note="covalent; in inhibited form"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         367..370
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
FT   BINDING         391
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00318"
SQ   SEQUENCE   429 AA;  45965 MW;  B9CD547B4BCB801E CRC64;
     MNNIVDTAIE AIVAREILDS RGRPTIEAEV HLLSGAVGLA QVPSGASTGT FEAHELRDKD
     KSRYGGKGVL KAVHNVNEIL APKLIDLDAL NQELIDRTMI ALDGSGNKSN LGANAILAVS
     LAAARAGAES LGIPLYRYLG GPLANLLPVP LMNVINGGAH ASNNVDFQEF MIVPVGATSF
     REALRWGAEV FATLSEVLHD KGLLTGVGDE GGFAPNLESN QVALELLVAA IEKAGYKPGE
     QVALALDVAA SEFYKEGQYV YDGRPHAPTE FIDYLGQLVD QYPIVSIEDG LHEEDWQHWQ
     LLTQKVGSRV QLVGDDLFVT NATRLQKGIQ EKAGNAILIK LNQIGSLTET LETIDLGTRN
     GFRSVISHRS GETEDTTIAD LAVATRAGQI KTGSLCRSER VAKYNRLLRI EDELGDRAVY
     AGAVGLGPK