ID ENO_ENTH1 Reviewed; 436 AA. AC P51555; A0A175JIN2; C4LXE8; S0AUS0; DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot. DT 01-OCT-1996, sequence version 1. DT 02-SEP-2026, entry version 124. DE RecName: Full=Enolase 1 {ECO:0000303|PubMed:7723780}; DE Short=EhENO {ECO:0000303|PubMed:21697600}; DE EC=4.2.1.11 {ECO:0000269|PubMed:15794763}; DE AltName: Full=2-phospho-D-glycerate hydro-lyase; DE AltName: Full=2-phosphoglycerate dehydratase; GN Name=ENO {ECO:0000303|PubMed:21697600}; GN Synonyms=ENL-1 {ECO:0000303|PubMed:7723780}; GN ORFNames=EHI_130700 {ECO:0000312|EMBL:EAL43773.1}; OS Entamoeba histolytica (strain ATCC 30459 / HM-1:IMSS / ABRM). OC Eukaryota; Amoebozoa; Evosea; Archamoebae; Mastigamoebida; Entamoebidae; OC Entamoeba. OX NCBI_TaxID=294381 {ECO:0000312|EMBL:EAL43773.1}; RN [1] {ECO:0000312|EMBL:AAA80166.1} RP NUCLEOTIDE SEQUENCE [MRNA]. RC STRAIN=ATCC 30459 / HM-1:IMSS / ABRM {ECO:0000312|EMBL:AAA80166.1}; RX PubMed=7723780; DOI=10.1016/0166-6851(94)00201-w; RA Beanan M.J., Bailey G.B.; RT "The primary structure of an Entamoeba histolytica enolase."; RL Mol. Biochem. Parasitol. 69:119-121(1995). RN [2] {ECO:0000312|EMBL:BAN38528.1} RP NUCLEOTIDE SEQUENCE [MRNA]. RC STRAIN=ATCC 30459 / HM-1:IMSS / ABRM {ECO:0000312|EMBL:BAN38528.1}; RA Hiranuka K., Kumagai M., Wakaguri H., Suzuki Y., Sugano S., Watanabe J., RA Makioka A.; RT "Short 5' UTR of Entamoeba genes."; RL Submitted (JUN-2012) to the EMBL/GenBank/DDBJ databases. RN [3] {ECO:0000312|EMBL:EAL43773.1} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 30459 / HM-1:IMSS / ABRM {ECO:0000312|EMBL:EAL43773.1}; RX PubMed=15729342; DOI=10.1038/nature03291; RA Loftus B.J., Anderson I., Davies R., Alsmark U.C., Samuelson J., Amedeo P., RA Roncaglia P., Berriman M., Hirt R.P., Mann B.J., Nozaki T., Suh B., Pop M., RA Duchene M., Ackers J., Tannich E., Leippe M., Hofer M., Bruchhaus I., RA Willhoeft U., Bhattacharya A., Chillingworth T., Churcher C.M., Hance Z., RA Harris B., Harris D., Jagels K., Moule S., Mungall K.L., Ormond D., RA Squares R., Whitehead S., Quail M.A., Rabbinowitsch E., Norbertczak H., RA Price C., Wang Z., Guillen N., Gilchrist C., Stroup S.E., Bhattacharya S., RA Lohia A., Foster P.G., Sicheritz-Ponten T., Weber C., Singh U., RA Mukherjee C., El-Sayed N.M.A., Petri W.A., Clark C.G., Embley T.M., RA Barrell B.G., Fraser C.M., Hall N.; RT "The genome of the protist parasite Entamoeba histolytica."; RL Nature 433:865-868(2005). RN [4] RP FUNCTION, CATALYTIC ACTIVITY, COFACTOR, BIOPHYSICOCHEMICAL PROPERTIES, RP PATHWAY, AND SUBUNIT. RX PubMed=15794763; DOI=10.1111/j.1742-4658.2005.04610.x; RA Saavedra E., Encalada R., Pineda E., Jasso-Chavez R., Moreno-Sanchez R.; RT "Glycolysis in Entamoeba histolytica. Biochemical characterization of RT recombinant glycolytic enzymes and flux control analysis."; RL FEBS J. 272:1767-1783(2005). RN [5] RP FUNCTION, INTERACTION WITH METH, SUBCELLULAR LOCATION, AND DEVELOPMENTAL RP STAGE. RX PubMed=20174608; DOI=10.1371/journal.ppat.1000775; RA Tovy A., Siman Tov R., Gaentzsch R., Helm M., Ankri S.; RT "A new nuclear function of the Entamoeba histolytica glycolytic enzyme RT enolase: the metabolic regulation of cytosine-5 methyltransferase 2 (Dnmt2) RT activity."; RL PLoS Pathog. 6:e1000775-e1000775(2010). RN [6] {ECO:0000312|PDB:3QTP} RP X-RAY CRYSTALLOGRAPHY (1.90 ANGSTROMS) IN COMPLEX WITH MAGNESIUM AND RP PHOSPHOGLYCERATE, SUBUNIT, COFACTOR, AND DISULFIDE BOND. RX PubMed=21697600; DOI=10.1107/s0907444911016544; RA Schulz E.C., Tietzel M., Tovy A., Ankri S., Ficner R.; RT "Structure analysis of Entamoeba histolytica enolase."; RL Acta Crystallogr. D 67:619-627(2011). CC -!- FUNCTION: Glycolytic enzyme that catalyzes the conversion of 2- CC phosphoglycerate to phosphoenolpyruvate (PubMed:15794763). Inhibits CC tRNA methyltransferase METH catalytic activity in the absence of 2- CC phosphoglycerate (PubMed:20174608). {ECO:0000269|PubMed:15794763, CC ECO:0000269|PubMed:20174608}. CC -!- CATALYTIC ACTIVITY: CC Reaction=(2R)-2-phosphoglycerate = phosphoenolpyruvate + H2O; CC Xref=Rhea:RHEA:10164, ChEBI:CHEBI:15377, ChEBI:CHEBI:58289, CC ChEBI:CHEBI:58702; EC=4.2.1.11; CC Evidence={ECO:0000269|PubMed:15794763}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:10165; CC Evidence={ECO:0000269|PubMed:15794763}; CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:10166; CC Evidence={ECO:0000269|PubMed:15794763}; CC -!- COFACTOR: CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; CC Evidence={ECO:0000269|PubMed:15794763, ECO:0000305|PubMed:21697600}; CC Note=Binds 2 Mg(2+) ions per subunit. Required for catalysis and for CC stabilizing the dimer. {ECO:0000250|UniProtKB:P06733}; CC -!- BIOPHYSICOCHEMICAL PROPERTIES: CC Kinetic parameters: CC KM=55 uM for 2-phosphoglycerate (at pH 7 and 37 degrees Celsius) CC {ECO:0000269|PubMed:15794763}; CC KM=60 uM for 2-phosphoglycerate (at pH 6 and 37 degrees Celsius) CC {ECO:0000269|PubMed:15794763}; CC KM=63 uM for phosphoenolpyruvate (at pH 7 and 37 degrees Celsius) CC {ECO:0000269|PubMed:15794763}; CC KM=102 uM for phosphoenolpyruvate (at pH 6 and 37 degrees Celsius) CC {ECO:0000269|PubMed:15794763}; CC Vmax=103 umol/min/mg enzyme with 2-phosphoglycerate as substrate (at CC pH 7 and 37 degrees Celsius) {ECO:0000269|PubMed:15794763}; CC Vmax=89 umol/min/mg enzyme with 2-phosphoglycerate as substrate (at CC pH 6 and 37 degrees Celsius) {ECO:0000269|PubMed:15794763}; CC Vmax=26 umol/min/mg enzyme with phosphoenolpyruvate as substrate (at CC pH 7 and 37 degrees Celsius) {ECO:0000269|PubMed:15794763}; CC Vmax=33 umol/min/mg enzyme with phosphoenolpyruvate as substrate (at CC pH 6 and 37 degrees Celsius) {ECO:0000269|PubMed:15794763}; CC Note=kcat is 170 sec(-1) with 2-phosphoglycerate as substrate (at pH CC 7 and 37 degrees Celsius) (PubMed:15794763). kcat is 147 sec(-1) with CC 2-phosphoglycerate as substrate (at pH 6 and 37 degrees Celsius) CC (PubMed:15794763). kcat is 43 sec(-1) with phosphoenolpyruvate as CC substrate (at pH 7 and 37 degrees Celsius) (PubMed:15794763). kcat is CC 55 sec(-1) with phosphoenolpyruvate as substrate (at pH 6 and 37 CC degrees Celsius) (PubMed:15794763). {ECO:0000269|PubMed:15794763}; CC pH dependence: CC Optimum pH is 6.5-7.7 for the conversion of 2-phosphoglycerate to CC phosphoenolpyruvate (PubMed:15794763). Optimum pH is 6.0 for the CC conversion of phosphoenolpyruvate to 2-phosphoglycerate CC (PubMed:15794763). {ECO:0000269|PubMed:15794763}; CC -!- PATHWAY: Carbohydrate degradation; glycolysis; pyruvate from D- CC glyceraldehyde 3-phosphate: step 4/5. {ECO:0000269|PubMed:15794763}. CC -!- SUBUNIT: Homodimer (Probable). Homotetramer (PubMed:15794763). CC Interacts with methyltransferase METH; the interaction inhibits METH CC catalytic activity; 2-phosphoglycerate binding to ENO prevents the CC interaction with METH (PubMed:20174608). {ECO:0000269|PubMed:15794763, CC ECO:0000269|PubMed:20174608, ECO:0000305|PubMed:21697600}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000269|PubMed:20174608}. Nucleus CC {ECO:0000269|PubMed:20174608}. Note=During glucose starvation, CC accumulates in the nucleus. {ECO:0000269|PubMed:20174608}. CC -!- DEVELOPMENTAL STAGE: Expressed in trophozoites (at protein level). CC {ECO:0000269|PubMed:20174608}. CC -!- SIMILARITY: Belongs to the enolase family. {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; U09736; AAA80166.1; -; mRNA. DR EMBL; AK418805; BAN37550.1; -; mRNA. DR EMBL; AK418897; BAN37631.1; -; mRNA. DR EMBL; AK419306; BAN37996.1; -; mRNA. DR EMBL; AK419593; BAN38258.1; -; mRNA. DR EMBL; AK419617; BAN38282.1; -; mRNA. DR EMBL; AK419676; BAN38334.1; -; mRNA. DR EMBL; AK419790; BAN38438.1; -; mRNA. DR EMBL; AK419812; BAN38458.1; -; mRNA. DR EMBL; AK419816; BAN38462.1; -; mRNA. DR EMBL; AK419883; BAN38524.1; -; mRNA. DR EMBL; AK419887; BAN38528.1; -; mRNA. DR EMBL; AK419955; BAN38587.1; -; mRNA. DR EMBL; AK420022; BAN38653.1; -; mRNA. DR EMBL; AK420226; BAN38847.1; -; mRNA. DR EMBL; AK420333; BAN38948.1; -; mRNA. DR EMBL; AK420363; BAN38977.1; -; mRNA. DR EMBL; AK420379; BAN38992.1; -; mRNA. DR EMBL; AK420409; BAN39022.1; -; mRNA. DR EMBL; AK420534; BAN39141.1; -; mRNA. DR EMBL; AK420654; BAN39250.1; -; mRNA. DR EMBL; AK420726; BAN39317.1; -; mRNA. DR EMBL; AK420875; BAN39462.1; -; mRNA. DR EMBL; AK420910; BAN39494.1; -; mRNA. DR EMBL; AK421000; BAN39576.1; -; mRNA. DR EMBL; AK421082; BAN39654.1; -; mRNA. DR EMBL; AK421175; BAN39740.1; -; mRNA. DR EMBL; AK421207; BAN39770.1; -; mRNA. DR EMBL; AK421314; BAN39874.1; -; mRNA. DR EMBL; AK421366; BAN39922.1; -; mRNA. DR EMBL; AK421393; BAN39949.1; -; mRNA. DR EMBL; AK421613; BAN40145.1; -; mRNA. DR EMBL; DS571170; EAL43773.1; -; Genomic_DNA. DR RefSeq; XP_649161.1; XM_644069.2. DR PDB; 3QTP; X-ray; 1.90 A; A/B=1-436. DR AlphaFoldDB; P51555; -. DR SMR; P51555; -. DR STRING; 5759.C4LXE8; -. DR EnsemblProtists; GAT93425; GAT93425; CL6EHI_130700. DR EnsemblProtists; rna_EHI_130700-1; rna_EHI_130700-1; EHI_130700. DR GeneID; 3403451; -. DR KEGG; ehi:EHI_130700; -. DR VEuPathDB; AmoebaDB:EHI5A_036590; -. DR VEuPathDB; AmoebaDB:EHI7A_041120; -. DR VEuPathDB; AmoebaDB:EHI8A_039740; -. DR VEuPathDB; AmoebaDB:EHI_130700; -. DR VEuPathDB; AmoebaDB:KM1_070570; -. DR eggNOG; KOG2670; Eukaryota. DR HOGENOM; CLU_031223_0_0_1; -. DR OMA; RCMMSHR; -. DR OrthoDB; 1739814at2759; -. DR BRENDA; 4.2.1.11; 2080. DR SABIO-RK; P51555; -. DR UniPathway; UPA00109; UER00187. DR Proteomes; UP000001926; Unassembled WGS sequence. DR GO; GO:0005737; C:cytoplasm; EXP:UniProtKB. DR GO; GO:0005634; C:nucleus; EXP:UniProtKB. DR GO; GO:0000015; C:phosphopyruvate hydratase complex; IBA:GO_Central. DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro. DR GO; GO:0004634; F:phosphopyruvate hydratase activity; EXP:UniProtKB. DR GO; GO:0006096; P:glycolytic process; IBA:GO_Central. DR CDD; cd03313; enolase; 1. DR FunFam; 3.30.390.10:FF:000001; Enolase; 1. DR FunFam; 3.20.20.120:FF:000002; Enolase 1; 1. DR Gene3D; 3.20.20.120; Enolase-like C-terminal domain; 1. DR Gene3D; 3.30.390.10; Enolase-like, N-terminal domain; 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 NCBIfam; TIGR01060; eno; 1. DR PANTHER; PTHR11902; ENOLASE; 1. DR PANTHER; PTHR11902:SF1; ENOLASE; 1. DR Pfam; PF00113; Enolase_C; 1. DR Pfam; PF03952; Enolase_N; 1. DR PIRSF; PIRSF001400; Enolase; 1. DR PRINTS; PR00148; ENOLASE. DR SFLD; SFLDS00001; Enolase; 1. DR SFLD; SFLDF00002; enolase; 1. DR SFLD; SFLDG00178; enolase; 1. DR SMART; SM01192; Enolase_C; 1. DR SMART; SM01193; Enolase_N; 1. DR SUPFAM; SSF51604; Enolase C-terminal domain-like; 1. DR SUPFAM; SSF54826; Enolase N-terminal domain-like; 1. DR PROSITE; PS00164; ENOLASE; 1. DR PDBsum; 3QTP; -. PE 1: Evidence at protein level; KW 3D-structure; Cytoplasm; Disulfide bond; Glycolysis; Lyase; Magnesium; KW Metal-binding; Nucleus; Reference proteome. FT CHAIN 1..436 FT /note="Enolase 1" FT /id="PRO_0000134080" FT ACT_SITE 208 FT /note="Proton donor" FT /evidence="ECO:0000250|UniProtKB:P00924" FT ACT_SITE 347 FT /note="Proton acceptor" FT /evidence="ECO:0000250|UniProtKB:P00924" FT BINDING 40 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000250|UniProtKB:P06733" FT BINDING 164 FT /ligand="(2R)-2-phosphoglycerate" FT /ligand_id="ChEBI:CHEBI:58289" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 208 FT /ligand="(2R)-2-phosphoglycerate" FT /ligand_id="ChEBI:CHEBI:58289" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 243 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 296 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 322 FT /ligand="(2R)-2-phosphoglycerate" FT /ligand_id="ChEBI:CHEBI:58289" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 322 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 376 FT /ligand="(2R)-2-phosphoglycerate" FT /ligand_id="ChEBI:CHEBI:58289" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT BINDING 377 FT /ligand="(2R)-2-phosphoglycerate" FT /ligand_id="ChEBI:CHEBI:58289" FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT DISULFID 147..169 FT /evidence="ECO:0000269|PubMed:21697600, FT ECO:0007744|PDB:3QTP" FT STRAND 5..12 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 18..26 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 29..34 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 35..37 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 43..45 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 57..59 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 63..68 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 69..73 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 74..77 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 85..96 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 102..104 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 106..123 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 128..136 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 145..152 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 154..156 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 158..160 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 163..169 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 176..198 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 200..203 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 218..232 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 235..237 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 239..243 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 246..249 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 252..255 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 256..258 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 259..262 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 265..267 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 270..272 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 276..289 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 292..297 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 304..313 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 314..316 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 317..322 FT /evidence="ECO:0007829|PDB:3QTP" FT TURN 323..327 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 329..338 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 342..346 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 348..350 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 354..366 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 370..374 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 384..391 FT /evidence="ECO:0007829|PDB:3QTP" FT STRAND 395..398 FT /evidence="ECO:0007829|PDB:3QTP" FT HELIX 405..421 FT /evidence="ECO:0007829|PDB:3QTP" SQ SEQUENCE 436 AA; 47327 MW; BFBA693A65B44289 CRC64; MSIQKVHARE ILDSRGNPTI EVEITTGKGM FRSCVPSGAS TGVHEAVELR DGDKKRYGGK GVLKAVENVN TIIGPALLGK NVLNQAELDE MMIKLDGTNN KGKLGANAIL GCSMSICRAA AAEKGLPLYK YLAELTGHKE MTMPVPCFNV INGGAHAGNA LAMQEFMICP TGATNFHEAL RMAAETYQCL KVVIKAKYGQ DATNVGDEGG FAPNVSGARE ALDLLVEAIA KAGYTGKIEI AMDCAASEFY NEETKKYDLG KKIPADKKDP SLVKDVDGLI AEYVDYGKHY PIASIEDPFA EDDWAAWNKF TVEHGNFQIV GDDLLVTNPA RVQMAMDKNA CNSVLIKVNQ IGTLTETFKT IKMAQEKGWG VMASHRSGET EDTFIADLVV GLNCKQIKTG APCRSERLCK YNQLMRIEEE LGNIPYAGKN WRNSTA //