NNR_PYRAE
ID NNR_PYRAE Reviewed; 501 AA.
AC Q8ZV04;
DT 21-MAR-2012, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 03-AUG-2022, entry version 94.
DE RecName: Full=Bifunctional NAD(P)H-hydrate repair enzyme Nnr;
DE AltName: Full=Nicotinamide nucleotide repair protein;
DE Includes:
DE RecName: Full=ADP-dependent (S)-NAD(P)H-hydrate dehydratase;
DE EC=4.2.1.136;
DE AltName: Full=ADP-dependent NAD(P)HX dehydratase;
DE Includes:
DE RecName: Full=NAD(P)H-hydrate epimerase;
DE EC=5.1.99.6;
DE AltName: Full=NAD(P)HX epimerase;
GN Name=nnr; OrderedLocusNames=PAE2520;
OS Pyrobaculum aerophilum (strain ATCC 51768 / DSM 7523 / JCM 9630 / CIP
OS 104966 / NBRC 100827 / IM2).
OC Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC Pyrobaculum.
OX NCBI_TaxID=178306;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51768 / DSM 7523 / JCM 9630 / CIP 104966 / NBRC 100827 / IM2;
RX PubMed=11792869; DOI=10.1073/pnas.241636498;
RA Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I.,
RA Miller J.H.;
RT "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum
RT aerophilum.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002).
CC -!- FUNCTION: Bifunctional enzyme that catalyzes the epimerization of the
CC S- and R-forms of NAD(P)HX and the dehydration of the S-form of
CC NAD(P)HX at the expense of ADP, which is converted to AMP. This allows
CC the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that
CC is a result of enzymatic or heat-dependent hydration (By similarity).
CC {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-NADHX + ADP = AMP + H(+) + NADH + phosphate;
CC Xref=Rhea:RHEA:32223, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:57945, ChEBI:CHEBI:64074, ChEBI:CHEBI:456215,
CC ChEBI:CHEBI:456216; EC=4.2.1.136;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-NADPHX + ADP = AMP + H(+) + NADPH + phosphate;
CC Xref=Rhea:RHEA:32235, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:64076, ChEBI:CHEBI:456215,
CC ChEBI:CHEBI:456216; EC=4.2.1.136;
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; Evidence={ECO:0000250};
CC Note=Binds 1 potassium ion per subunit. {ECO:0000250};
CC -!- SIMILARITY: In the N-terminal section; belongs to the NnrE/AIBP family.
CC {ECO:0000305}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the NnrD/CARKD
CC family. {ECO:0000305}.
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DR EMBL; AE009441; AAL64252.1; -; Genomic_DNA.
DR AlphaFoldDB; Q8ZV04; -.
DR SMR; Q8ZV04; -.
DR STRING; 178306.PAE2520; -.
DR EnsemblBacteria; AAL64252; AAL64252; PAE2520.
DR KEGG; pai:PAE2520; -.
DR PATRIC; fig|178306.9.peg.1877; -.
DR eggNOG; arCOG00018; Archaea.
DR HOGENOM; CLU_024853_4_1_2; -.
DR InParanoid; Q8ZV04; -.
DR OMA; HNGGDAL; -.
DR Proteomes; UP000002439; Chromosome.
DR GO; GO:0052855; F:ADP-dependent NAD(P)H-hydrate dehydratase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
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:0110051; P:metabolite repair; IBA:GO_Central.
DR GO; GO:0046496; P:nicotinamide nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd01171; YXKO-related; 1.
DR Gene3D; 3.40.1190.20; -; 1.
DR Gene3D; 3.40.50.10260; -; 1.
DR HAMAP; MF_01965; NADHX_dehydratase; 1.
DR HAMAP; MF_01966; NADHX_epimerase; 1.
DR InterPro; IPR017953; Carbohydrate_kinase_pred_CS.
DR InterPro; IPR000631; CARKD.
DR InterPro; IPR030677; Nnr.
DR InterPro; IPR001763; Rhodanese-like_dom.
DR InterPro; IPR029056; Ribokinase-like.
DR InterPro; IPR004443; YjeF_N_dom.
DR InterPro; IPR036652; YjeF_N_dom_sf.
DR Pfam; PF01256; Carb_kinase; 1.
DR Pfam; PF03853; YjeF_N; 1.
DR PIRSF; PIRSF017184; Nnr; 1.
DR SUPFAM; SSF53613; SSF53613; 1.
DR SUPFAM; SSF64153; SSF64153; 1.
DR TIGRFAMs; TIGR00196; yjeF_cterm; 1.
DR TIGRFAMs; TIGR00197; yjeF_nterm; 1.
DR PROSITE; PS01050; YJEF_C_2; 1.
DR PROSITE; PS51383; YJEF_C_3; 1.
DR PROSITE; PS51385; YJEF_N; 1.
PE 3: Inferred from homology;
KW ATP-binding; Isomerase; Lyase; Metal-binding; Multifunctional enzyme; NAD;
KW NADP; Nucleotide-binding; Potassium; Reference proteome.
FT CHAIN 1..501
FT /note="Bifunctional NAD(P)H-hydrate repair enzyme Nnr"
FT /id="PRO_0000416431"
FT DOMAIN 9..217
FT /note="YjeF N-terminal"
FT DOMAIN 220..495
FT /note="YjeF C-terminal"
FT REGION 1..221
FT /note="NAD(P)H-hydrate epimerase"
FT /evidence="ECO:0000250"
FT REGION 56..60
FT /note="NADPHX 1; for epimerase activity"
FT /evidence="ECO:0000250"
FT REGION 131..137
FT /note="NADPHX 1; for epimerase activity"
FT /evidence="ECO:0000250"
FT REGION 221..501
FT /note="ADP-dependent (S)-NAD(P)H-hydrate dehydratase"
FT /evidence="ECO:0000250"
FT REGION 371..377
FT /note="NADPHX 2; for dehydratase activity"
FT /evidence="ECO:0000250"
FT BINDING 57
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000250"
FT BINDING 127
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000250"
FT BINDING 160
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /ligand_label="1"
FT /ligand_note="for epimerase activity"
FT /evidence="ECO:0000250"
FT BINDING 163
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000250"
FT BINDING 323
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /ligand_label="2"
FT /ligand_note="for dehydratase activity"
FT /evidence="ECO:0000250"
FT BINDING 408..412
FT /ligand="ADP"
FT /ligand_id="ChEBI:CHEBI:456216"
FT /evidence="ECO:0000250"
FT BINDING 427..436
FT /ligand="ADP"
FT /ligand_id="ChEBI:CHEBI:456216"
FT /evidence="ECO:0000250"
FT BINDING 437
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /ligand_label="2"
FT /ligand_note="for dehydratase activity"
FT /evidence="ECO:0000250"
SQ SEQUENCE 501 AA; 53031 MW; B8A0D79AC45E638D CRC64;
MESITSIEMY VADRNAEWLG VPRLVLMENA GAAVARNVLR KFPTAKRILV VCGTGDNGGD
GYVAARHLHA AGRTVRVIAL GEPREELARI NYQAVTRLWG VEVKAAQLPL ELLALQDWFM
WAEVIVDAVL GTGIRGVLRE PHATAIELMN ISPAPKVAVD VPSGLDPDTG EVRDKAVRAA
LTVTFHKAKR GLLAPGAQRY VGELVVEPIG IPPEAELVVG PGDFAYLNFT RRADSKKGDH
GRVLVIGGSL EYSGAPVYVA LAALRAGVDL AVIAAPEPAA YAAKAISPDI IAIPLEGPRL
STKHVDKLAS LAERFNVVAM GPGLGVEEET QEAVRELFRR LAGKRAMVID ADALKALRGV
RASGAVVYTP HAGEFKALTG AEPPQSLSER MAVVREQAAA LGGVILLKGR YDVISDGVRV
KVNMTGTPAM TVGGTGDVLT GLVAAFLTKT SDPLEAAAVA AFVNGLAGED AAAELGFHIT
ASDLIERLPR VIRRYAFESI R
