NNRE_XENTR
ID NNRE_XENTR Reviewed; 292 AA.
AC F7DL67;
DT 21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT 27-JUL-2011, sequence version 1.
DT 03-AUG-2022, entry version 51.
DE RecName: Full=NAD(P)H-hydrate epimerase {ECO:0000255|HAMAP-Rule:MF_03159};
DE EC=5.1.99.6;
DE AltName: Full=Apolipoprotein A-I binding protein;
DE AltName: Full=NAD(P)HX epimerase {ECO:0000250|UniProtKB:Q8NCW5};
DE Flags: Precursor;
GN Name=naxe {ECO:0000250|UniProtKB:Q8NCW5}; Synonyms=apoa1bp;
OS Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX NCBI_TaxID=8364;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=20431018; DOI=10.1126/science.1183670;
RA Hellsten U., Harland R.M., Gilchrist M.J., Hendrix D., Jurka J.,
RA Kapitonov V., Ovcharenko I., Putnam N.H., Shu S., Taher L., Blitz I.L.,
RA Blumberg B., Dichmann D.S., Dubchak I., Amaya E., Detter J.C., Fletcher R.,
RA Gerhard D.S., Goodstein D., Graves T., Grigoriev I.V., Grimwood J.,
RA Kawashima T., Lindquist E., Lucas S.M., Mead P.E., Mitros T., Ogino H.,
RA Ohta Y., Poliakov A.V., Pollet N., Robert J., Salamov A., Sater A.K.,
RA Schmutz J., Terry A., Vize P.D., Warren W.C., Wells D., Wills A.,
RA Wilson R.K., Zimmerman L.B., Zorn A.M., Grainger R., Grammer T.,
RA Khokha M.K., Richardson P.M., Rokhsar D.S.;
RT "The genome of the Western clawed frog Xenopus tropicalis.";
RL Science 328:633-636(2010).
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:0000250|UniProtKB:Q8NCW5, ECO:0000255|HAMAP-
CC 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 -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000255|HAMAP-Rule:MF_03159}.
CC Secreted {ECO:0000255|HAMAP-Rule:MF_03159}.
CC -!- SIMILARITY: Belongs to the NnrE/AIBP family. {ECO:0000255|HAMAP-
CC Rule:MF_03159}.
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DR EMBL; AAMC01086668; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; F7DL67; -.
DR SMR; F7DL67; -.
DR STRING; 8364.ENSXETP00000044001; -.
DR PaxDb; F7DL67; -.
DR PRIDE; F7DL67; -.
DR eggNOG; KOG2585; Eukaryota.
DR HOGENOM; CLU_024853_3_0_1; -.
DR InParanoid; F7DL67; -.
DR OMA; TIYYPKP; -.
DR TreeFam; TF300197; -.
DR Proteomes; UP000008143; Genome assembly.
DR Proteomes; UP000790000; Unplaced.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
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; Mitochondrion; NAD; NADP; Nucleotide-binding;
KW Potassium; Reference proteome; Secreted; Transit peptide.
FT TRANSIT 1..52
FT /note="Mitochondrion"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT CHAIN 53..292
FT /note="NAD(P)H-hydrate epimerase"
FT /id="PRO_0000416311"
FT DOMAIN 68..279
FT /note="YjeF N-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 122..126
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 123
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 189
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 193..199
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 222
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
FT BINDING 225
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03159"
SQ SEQUENCE 292 AA; 31594 MW; 8B34C2DE0FED33D0 CRC64;
MYGLRTLFSL GLLVGGARLG ARVAQVGALG GTCPLGQGLV ADGNSQCKQF RTGAAMERGL
RYLSQEEAQA VDEELFNEYR FSVDQLMELA GLSCAVAITK AYPVSSFTSN LPTVLVVCGP
GNNGGDGLVC ARHLKLFKGY EPAIHYPKRP NKTLFENLTT QCQKMDIPFV SEFPSEPEVI
DGAYNLVVDA VFGFSFKGAV REPFGNILST LKRVTVPIAS VDIPSGWDVE KGNPEGIQPD
MLISLTAPKQ SAVHFTGRYH FLGGRFVPKA LEKKYSLNLP PYPGTECVQK LP
