ID A0A2K6DAT6_MACNE Unreviewed; 307 AA.
AC A0A2K6DAT6;
DT 28-MAR-2018, integrated into UniProtKB/TrEMBL.
DT 28-MAR-2018, sequence version 1.
DT 24-JAN-2024, entry version 28.
DE RecName: Full=NAD(P)H-hydrate epimerase {ECO:0000256|HAMAP-Rule:MF_03159};
DE EC=5.1.99.6 {ECO:0000256|HAMAP-Rule:MF_03159};
DE AltName: Full=Apolipoprotein A-I-binding protein {ECO:0000256|HAMAP-Rule:MF_03159};
DE Short=AI-BP {ECO:0000256|HAMAP-Rule:MF_03159};
DE AltName: Full=NAD(P)HX epimerase {ECO:0000256|HAMAP-Rule:MF_03159};
GN Name=NAXE {ECO:0000313|Ensembl:ENSMNEP00000033028.1};
GN Synonyms=AIBP {ECO:0000256|HAMAP-Rule:MF_03159}, APOA1BP
GN {ECO:0000256|HAMAP-Rule:MF_03159};
OS Macaca nemestrina (Pig-tailed macaque).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Cercopithecinae; Macaca.
OX NCBI_TaxID=9545 {ECO:0000313|Ensembl:ENSMNEP00000033028.1, ECO:0000313|Proteomes:UP000233120};
RN [1] {ECO:0000313|Ensembl:ENSMNEP00000033028.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
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. Accelerates cholesterol efflux from endothelial cells to
CC high-density lipoprotein (HDL) and thereby regulates angiogenesis.
CC {ECO:0000256|HAMAP-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 Evidence={ECO:0000256|HAMAP-Rule:MF_03159};
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_03159};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03159};
CC Note=Binds 1 potassium ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_03159};
CC -!- SUBUNIT: Homodimer. Interacts with APOA1 and APOA2. {ECO:0000256|HAMAP-
CC Rule:MF_03159}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03159}.
CC Secreted {ECO:0000256|HAMAP-Rule:MF_03159}. Note=In sperm, secretion
CC gradually increases during capacitation. {ECO:0000256|HAMAP-
CC Rule:MF_03159}.
CC -!- PTM: Undergoes physiological phosphorylation during sperm capacitation,
CC downstream to PKA activation. {ECO:0000256|HAMAP-Rule:MF_03159}.
CC -!- SIMILARITY: Belongs to the NnrE/AIBP family. {ECO:0000256|HAMAP-
CC Rule:MF_03159}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03159}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR RefSeq; XP_011768153.1; XM_011769851.1.
DR AlphaFoldDB; A0A2K6DAT6; -.
DR STRING; 9545.ENSMNEP00000033028; -.
DR Ensembl; ENSMNET00000057470.1; ENSMNEP00000033028.1; ENSMNEG00000039802.1.
DR GeneID; 105498058; -.
DR KEGG; mni:105498058; -.
DR CTD; 128240; -.
DR GeneTree; ENSGT00390000007227; -.
DR OMA; SMFRGRY; -.
DR OrthoDB; 1493at2759; -.
DR Proteomes; UP000233120; Unplaced.
DR Bgee; ENSMNEG00000039802; Expressed in heart and 12 other cell types or tissues.
DR GO; GO:0044297; C:cell body; IEA:Ensembl.
DR GO; GO:0005929; C:cilium; IEA:Ensembl.
DR GO; GO:0005615; C:extracellular space; IEA:Ensembl.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0042802; F:identical protein binding; IEA:Ensembl.
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 GO; GO:0031580; P:membrane raft distribution; IEA:Ensembl.
DR GO; GO:0016525; P:negative regulation of angiogenesis; IEA:Ensembl.
DR GO; GO:0046496; P:nicotinamide nucleotide metabolic process; IEA:Ensembl.
DR GO; GO:0010874; P:regulation of cholesterol efflux; IEA:Ensembl.
DR GO; GO:0002040; P:sprouting angiogenesis; IEA:Ensembl.
DR Gene3D; 3.40.50.10260; YjeF N-terminal domain; 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 NCBIfam; TIGR00197; yjeF_nterm; 1.
DR PANTHER; PTHR13232; NAD(P)H-HYDRATE EPIMERASE; 1.
DR PANTHER; PTHR13232:SF11; NAD(P)H-HYDRATE EPIMERASE; 1.
DR Pfam; PF03853; YjeF_N; 1.
DR SUPFAM; SSF64153; YjeF N-terminal domain-like; 1.
DR PROSITE; PS51385; YJEF_N; 1.
PE 3: Inferred from homology;
KW Isomerase {ECO:0000256|HAMAP-Rule:MF_03159};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_03159};
KW Mitochondrion {ECO:0000256|ARBA:ARBA00023128, ECO:0000256|HAMAP-
KW Rule:MF_03159}; NAD {ECO:0000256|HAMAP-Rule:MF_03159};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_03159};
KW Potassium {ECO:0000256|HAMAP-Rule:MF_03159};
KW Reference proteome {ECO:0000313|Proteomes:UP000233120};
KW Secreted {ECO:0000256|ARBA:ARBA00022525, ECO:0000256|HAMAP-Rule:MF_03159};
KW Transit peptide {ECO:0000256|ARBA:ARBA00022946}.
FT DOMAIN 84..294
FT /note="YjeF N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51385"
FT BINDING 138..142
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
FT BINDING 139
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
FT BINDING 204
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
FT BINDING 208..214
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
FT BINDING 237
FT /ligand="(6S)-NADPHX"
FT /ligand_id="ChEBI:CHEBI:64076"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
FT BINDING 240
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03159"
SQ SEQUENCE 307 AA; 33623 MW; ECC639F7D8A5919A CRC64;
MRRGRVEPGL AGGERSASWM SGVRTLLGLG LLVAGSRLLR IKSETIACRS GPTWWGPQRL
NSGGRWDSEV MASTAVKYLS QEEAQAVDQE LFNEYQFSVD QLMELAGLSC ATAIAKAYPP
TSMSRSPPTV LVICGPGNNG GDGLVCARHL KLFGYEPTIY YPKRPNKPLF TALVTQCQKM
DIPFLGEMPS EPTMIDELYE LVVDAIFGFS FKGDVREPFH SILSVLKGLT VPIASIDIPS
GWDVEKGNSG GIQPDLLISL TAPKKSATQF TGRYHYLGGR FVPPALEKKY QLNLPPYPDT
ACVYRLQ
//
