ID A4C8M1_9GAMM Unreviewed; 411 AA.
AC A4C8M1;
DT 03-APR-2007, integrated into UniProtKB/TrEMBL.
DT 03-APR-2007, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=NAD(P)H-hydrate epimerase {ECO:0000256|HAMAP-Rule:MF_01966};
DE EC=5.1.99.6 {ECO:0000256|HAMAP-Rule:MF_01966};
DE AltName: Full=NAD(P)HX epimerase {ECO:0000256|HAMAP-Rule:MF_01966};
GN Name=nnrE {ECO:0000256|HAMAP-Rule:MF_01966};
GN ORFNames=PTD2_07829 {ECO:0000313|EMBL:EAR28936.1};
OS Pseudoalteromonas tunicata D2.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Pseudoalteromonadaceae; Pseudoalteromonas.
OX NCBI_TaxID=87626 {ECO:0000313|EMBL:EAR28936.1, ECO:0000313|Proteomes:UP000006201};
RN [1] {ECO:0000313|EMBL:EAR28936.1, ECO:0000313|Proteomes:UP000006201}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=D2 {ECO:0000313|EMBL:EAR28936.1,
RC ECO:0000313|Proteomes:UP000006201};
RA Moran M.A., Kjelleberg S., Egan S., Saunders N., Thomas T., Ferriera S.,
RA Johnson J., Kravitz S., Halpern A., Remington K., Beeson K., Tran B.,
RA Rogers Y.-H., Friedman R., Venter J.C.;
RL Submitted (FEB-2006) to the EMBL/GenBank/DDBJ databases.
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.
CC {ECO:0000256|ARBA:ARBA00025153}.
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:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_01966};
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 Evidence={ECO:0000256|ARBA:ARBA00001026};
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 Evidence={ECO:0000256|ARBA:ARBA00001241};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01966};
CC Note=Binds 1 potassium ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01966};
CC -!- SIMILARITY: Belongs to the NnrE/AIBP family. {ECO:0000256|HAMAP-
CC Rule:MF_01966}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the NnrD/CARKD
CC family. {ECO:0000256|ARBA:ARBA00009524}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the NnrE/AIBP family.
CC {ECO:0000256|ARBA:ARBA00006001}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01966}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EAR28936.1}.
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DR EMBL; AAOH01000003; EAR28936.1; -; Genomic_DNA.
DR RefSeq; WP_009838198.1; NZ_AAOH01000003.1.
DR AlphaFoldDB; A4C8M1; -.
DR STRING; 87626.PTD2_07829; -.
DR eggNOG; COG0062; Bacteria.
DR eggNOG; COG0063; Bacteria.
DR HOGENOM; CLU_024853_4_3_6; -.
DR OrthoDB; 9806925at2; -.
DR Proteomes; UP000006201; Unassembled WGS sequence.
DR GO; GO:0052855; F:ADP-dependent NAD(P)H-hydrate dehydratase activity; IEA:UniProtKB-EC.
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:0008152; P:metabolic process; IEA:UniProtKB-KW.
DR CDD; cd01171; YXKO-related; 1.
DR Gene3D; 3.40.1190.20; -; 1.
DR Gene3D; 3.40.50.10260; YjeF N-terminal domain; 1.
DR HAMAP; MF_01966; NADHX_epimerase; 1.
DR InterPro; IPR017953; Carbohydrate_kinase_pred_CS.
DR InterPro; IPR000631; CARKD.
DR InterPro; IPR029056; Ribokinase-like.
DR InterPro; IPR004443; YjeF_N_dom.
DR InterPro; IPR036652; YjeF_N_dom_sf.
DR NCBIfam; TIGR00197; yjeF_nterm; 1.
DR PANTHER; PTHR12592:SF0; ATP-DEPENDENT (S)-NAD(P)H-HYDRATE DEHYDRATASE; 1.
DR PANTHER; PTHR12592; ATP-DEPENDENT (S)-NAD(P)H-HYDRATE DEHYDRATASE FAMILY MEMBER; 1.
DR Pfam; PF01256; Carb_kinase; 1.
DR Pfam; PF03853; YjeF_N; 1.
DR SUPFAM; SSF53613; Ribokinase-like; 1.
DR SUPFAM; SSF64153; YjeF N-terminal domain-like; 1.
DR PROSITE; PS01049; YJEF_C_1; 1.
DR PROSITE; PS51383; YJEF_C_3; 1.
DR PROSITE; PS51385; YJEF_N; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840};
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01966};
KW Lyase {ECO:0000256|ARBA:ARBA00023239};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01966}; Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01966};
KW NADP {ECO:0000256|ARBA:ARBA00022857, ECO:0000256|HAMAP-Rule:MF_01966};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01966}; Potassium {ECO:0000256|HAMAP-Rule:MF_01966}.
FT DOMAIN 19..225
FT /note="YjeF N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51385"
FT DOMAIN 235..411
FT /note="YjeF C-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51383"
FT BINDING 68
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01966"
FT BINDING 134
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01966"
FT BINDING 138..144
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01966"
FT BINDING 168
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01966"
FT BINDING 171
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01966"
SQ SEQUENCE 411 AA; 44433 MW; 64E481EE086534A1 CRC64;
MESLYTTNLP QFAYTAEQVQ NNEKQVAEQL GFDLSEVMQK AGAAVFQYIE HHYGNHRRLL
ILLGKGNNAG DGYIVAYLAQ QNGYQVTLVS FVDVKSLHGD ALGAYLQCQQ AGLAVCQSND
LLLQELSAFD LVVDAMFGTG FKGELPEHFG QVCTLVNQHD NLPVISIDVP SGVNATSAAV
ANNAIKANVT ITFIALKQGL LTGRALEHVG KLVFAGLALD ELFRDKIKSN VTRFELSQLK
KALPNRALAA YKNQLGHVLC IGGNKGMAGA IRLSAEAALR SGAGLVSVAT HPDNCAAVLQ
GRYELMVHGI DAEHQLLALI NKASVVVIGP GLGQDVWAQN IWQWMMNAQC LRLVIDADGL
NFLAKSDKCT TDNLTERVLT PHAGEAARLL GISNRDVEQD RFDSALQLSQ R
//