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NNRE_ENTHI
ID   NNRE_ENTHI              Reviewed;         223 AA.
AC   C4M2B8;
DT   21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 60.
DE   RecName: Full=NAD(P)H-hydrate epimerase {ECO:0000255|HAMAP-Rule:MF_03159};
DE            EC=5.1.99.6;
DE   AltName: Full=NAD(P)HX epimerase {ECO:0000255|HAMAP-Rule:MF_03159};
GN   ORFNames=EHI_136490;
OS   Entamoeba histolytica.
OC   Eukaryota; Amoebozoa; Evosea; Archamoebae; Mastigamoebida; Entamoebidae;
OC   Entamoeba.
OX   NCBI_TaxID=5759;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 30459 / HM-1:IMSS;
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   [2]
RP   GENOME REANNOTATION.
RC   STRAIN=ATCC 30459 / HM-1:IMSS;
RA   Lorenzi H., Amedeo P., Inman J., Schobel S., Caler E.;
RL   Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the epimerization of the S- and R-forms of
CC       NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or
CC       heat-dependent hydration. This is a prerequisite for the S-specific
CC       NAD(P)H-hydrate dehydratase to allow the repair of both epimers of
CC       NAD(P)HX. {ECO:0000255|HAMAP-Rule:MF_03159}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6R)-NADHX = (6S)-NADHX; Xref=Rhea:RHEA:32215,
CC         ChEBI:CHEBI:64074, ChEBI:CHEBI:64075; EC=5.1.99.6;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6R)-NADPHX = (6S)-NADPHX; Xref=Rhea:RHEA:32227,
CC         ChEBI:CHEBI:64076, ChEBI:CHEBI:64077; EC=5.1.99.6;
CC   -!- COFACTOR:
CC       Name=K(+); Xref=ChEBI:CHEBI:29103;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_03159};
CC       Note=Binds 1 potassium ion per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_03159};
CC   -!- SIMILARITY: Belongs to the NnrE/AIBP family. {ECO:0000255|HAMAP-
CC       Rule:MF_03159}.
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DR   EMBL; DS571222; EAL49841.2; -; Genomic_DNA.
DR   RefSeq; XP_655227.2; XM_650135.2.
DR   AlphaFoldDB; C4M2B8; -.
DR   SMR; C4M2B8; -.
DR   STRING; 5759.rna_EHI_136490-1; -.
DR   EnsemblProtists; rna_EHI_136490-1; rna_EHI_136490-1; EHI_136490.
DR   GeneID; 3409545; -.
DR   KEGG; ehi:EHI_136490; -.
DR   VEuPathDB; AmoebaDB:EHI5A_216250; -.
DR   VEuPathDB; AmoebaDB:EHI7A_201730; -.
DR   VEuPathDB; AmoebaDB:EHI8A_233120; -.
DR   VEuPathDB; AmoebaDB:EHI_136490; -.
DR   VEuPathDB; AmoebaDB:KM1_277670; -.
DR   eggNOG; KOG2585; Eukaryota.
DR   HOGENOM; CLU_024853_3_0_1; -.
DR   InParanoid; C4M2B8; -.
DR   OMA; TIYYPKP; -.
DR   Proteomes; UP000001926; Partially assembled WGS sequence.
DR   GO; GO:0005739; C:mitochondrion; IBA:GO_Central.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0052856; F:NADHX epimerase activity; IBA:GO_Central.
DR   GO; GO:0052857; F:NADPHX epimerase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.10260; -; 1.
DR   HAMAP; MF_01966; NADHX_epimerase; 1.
DR   InterPro; IPR004443; YjeF_N_dom.
DR   InterPro; IPR036652; YjeF_N_dom_sf.
DR   InterPro; IPR032976; YJEFN_prot_NAXE-like.
DR   PANTHER; PTHR13232; PTHR13232; 1.
DR   Pfam; PF03853; YjeF_N; 1.
DR   SUPFAM; SSF64153; SSF64153; 1.
DR   TIGRFAMs; TIGR00197; yjeF_nterm; 1.
DR   PROSITE; PS51385; YJEF_N; 1.
PE   3: Inferred from homology;
KW   Isomerase; Metal-binding; NAD; NADP; Nucleotide-binding; Potassium;
KW   Reference proteome.
FT   CHAIN           1..223
FT                   /note="NAD(P)H-hydrate epimerase"
FT                   /id="PRO_0000416323"
FT   DOMAIN          9..211
FT                   /note="YjeF N-terminal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         60..64
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         61
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         120
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         124..130
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         153
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT   BINDING         156
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
SQ   SEQUENCE   223 AA;  25079 MW;  9EF1B6215951E03F CRC64;
     MQYLTQEQAI KLDEELMGKY KYSLVQLMEI AGLAVAQVVT KEYPIEKGNK RVLILCGPGN
     NGGDGLVCGR YLSLFGYEVT VFYPKQSKNE HLQLLIKQLE IQDIPVVTEL SSFEYDAIVD
     AVFGFSFKGP VRGIFKDIFS HINSLKVPII SVDIPSGWDV EQGYLQDGIQ RCDVLISLSA
     PKLGVKNFKG IHYLGGRFIP LELKDKLHLI LPYKENELIV KIN
 
 
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