ID   NNRE_LEGPA              Reviewed;         270 AA.
AC   Q5X170;
DT   21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=NAD(P)H-hydrate epimerase {ECO:0000255|HAMAP-Rule:MF_01966};
DE            EC=5.1.99.6 {ECO:0000255|HAMAP-Rule:MF_01966};
DE   AltName: Full=NAD(P)HX epimerase {ECO:0000255|HAMAP-Rule:MF_01966};
GN   Name=nnrE {ECO:0000255|HAMAP-Rule:MF_01966}; OrderedLocusNames=lpp2874;
OS   Legionella pneumophila (strain Paris).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales;
OC   Legionellaceae; Legionella.
OX   NCBI_TaxID=297246;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Paris;
RX   PubMed=15467720; DOI=10.1038/ng1447;
RA   Cazalet C., Rusniok C., Brueggemann H., Zidane N., Magnier A., Ma L.,
RA   Tichit M., Jarraud S., Bouchier C., Vandenesch F., Kunst F., Etienne J.,
RA   Glaser P., Buchrieser C.;
RT   "Evidence in the Legionella pneumophila genome for exploitation of host
RT   cell functions and high genome plasticity.";
RL   Nat. Genet. 36:1165-1173(2004).
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_01966}.
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         Evidence={ECO:0000255|HAMAP-Rule:MF_01966};
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         Evidence={ECO:0000255|HAMAP-Rule:MF_01966};
CC   -!- COFACTOR:
CC       Name=K(+); Xref=ChEBI:CHEBI:29103;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01966};
CC       Note=Binds 1 potassium ion per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01966};
CC   -!- SIMILARITY: Belongs to the NnrE/AIBP family. {ECO:0000255|HAMAP-
CC       Rule:MF_01966}.
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DR   EMBL; CR628336; CAH14027.1; -; Genomic_DNA.
DR   RefSeq; WP_015961833.1; NC_006368.1.
DR   AlphaFoldDB; Q5X170; -.
DR   SMR; Q5X170; -.
DR   KEGG; lpp:lpp2874; -.
DR   LegioList; lpp2874; -.
DR   HOGENOM; CLU_024853_0_1_6; -.
DR   OMA; IKAANHI; -.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0052856; F:NADHX epimerase activity; IEA:UniProtKB-UniRule.
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   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.
FT   CHAIN           1..270
FT                   /note="NAD(P)H-hydrate epimerase"
FT                   /id="PRO_0000416362"
FT   DOMAIN          25..234
FT                   /note="YjeF N-terminal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         73..77
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         74
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         144
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         148..154
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         177
FT                   /ligand="(6S)-NADPHX"
FT                   /ligand_id="ChEBI:CHEBI:64076"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT   BINDING         180
FT                   /ligand="K(+)"
FT                   /ligand_id="ChEBI:CHEBI:29103"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
SQ   SEQUENCE   270 AA;  30385 MW;  5D11F76EAFAAAB5C CRC64;
     MDYYFTKGKP QLVNMKTPIY LVTQFQQLMD LMQNQYEVSC LELMQRSGKA ACDFLVYRWP
     KVKKISIFCG RGDNGGQGYV LAQQAKKMGM IPTVWQVGHQ MSMSKPPQMH KEVWYEMNSC
     HQQGIVLHTY SPDIDLGDPE LIVDALFGVG LYGHVRPEIA LLLQRLQQFT VPILAIEVPT
     GINASTGEIA GNALAATATI TFLCMKLGLL INDGKIYSGE IAFDDLLAPE EIYQQVKGIE
     ESSLLDSSTC FSKKIWYRNK TQKGWQLSIN