NNRE_ISOPI
ID NNRE_ISOPI Reviewed; 272 AA.
AC E8R1E4;
DT 21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT 05-APR-2011, sequence version 1.
DT 03-AUG-2022, entry version 55.
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=Isop_1778;
OS Isosphaera pallida (strain ATCC 43644 / DSM 9630 / IS1B).
OC Bacteria; Planctomycetes; Planctomycetia; Isosphaerales; Isosphaeraceae;
OC Isosphaera.
OX NCBI_TaxID=575540;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43644 / DSM 9630 / IS1B;
RX PubMed=21475588; DOI=10.4056/sigs.1533840;
RG US DOE Joint Genome Institute (JGI-PGF);
RA Goker M., Cleland D., Saunders E., Lapidus A., Nolan M., Lucas S.,
RA Hammon N., Deshpande S., Cheng J.F., Tapia R., Han C., Goodwin L.,
RA Pitluck S., Liolios K., Pagani I., Ivanova N., Mavromatis K., Pati A.,
RA Chen A., Palaniappan K., Land M., Hauser L., Chang Y.J., Jeffries C.D.,
RA Detter J.C., Beck B., Woyke T., Bristow J., Eisen J.A., Markowitz V.,
RA Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Isosphaera pallida type strain (IS1B).";
RL Stand. Genomic Sci. 4:63-71(2011).
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; CP002353; ADV62361.1; -; Genomic_DNA.
DR AlphaFoldDB; E8R1E4; -.
DR SMR; E8R1E4; -.
DR STRING; 575540.Isop_1778; -.
DR PRIDE; E8R1E4; -.
DR EnsemblBacteria; ADV62361; ADV62361; Isop_1778.
DR KEGG; ipa:Isop_1778; -.
DR eggNOG; COG0062; Bacteria.
DR HOGENOM; CLU_024853_0_1_0; -.
DR OMA; SMFRGRY; -.
DR Proteomes; UP000008631; Chromosome.
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;
KW Reference proteome.
FT CHAIN 1..272
FT /note="NAD(P)H-hydrate epimerase"
FT /id="PRO_0000416354"
FT DOMAIN 47..266
FT /note="YjeF N-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 102..106
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 103
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 176
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 180..186
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 209
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
FT BINDING 212
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01966"
SQ SEQUENCE 272 AA; 29448 MW; 16B4C70927E310A2 CRC64;
MIRGRKRDGT VHARPDVCLS SMDDFFLRKP PAMDESPRLR PLSRAEARNL DLRAVRELGL
PTLVLMENAG RSAARWFLED WLSQGKGNLT DHKVLILCGP GSNGGDGGVM ARWLDLAGVL
VRVAWVSGPV PRLPAGDAAI QRDALAKAGF DQQDWVLPED NAKLAKSLSW CTWVVDALLG
TGLTRPIDGA FRTAVEMIND SGKPVYALDL PSGLDADTGE PLGVALRATA TATFVAPKLA
CQYKEAEEYL GEVAVLPIGL PYALLEDYIE ED
