A0A2R6MB13 · A0A2R6MB13_9EURY
- ProteinBifunctional NAD(P)H-hydrate repair enzyme
- GenennrD
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids500 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Bifunctional enzyme that catalyzes the epimerization of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. This allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration.
Catalyzes the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. Together with NAD(P)HX epimerase, which catalyzes the epimerization of the S- and R-forms, the enzyme allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration.
Catalyzes the epimerization of the S- and R-forms of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration. This is a prerequisite for the S-specific NAD(P)H-hydrate dehydratase to allow the repair of both epimers of NAD(P)HX.
Catalytic activity
- (6R)-NADHX = (6S)-NADHX
Cofactor
Protein has several cofactor binding sites:
Note: Binds 1 potassium ion per subunit.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 54-58 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: NNGGD | ||||||
Binding site | 55 | K+ (UniProtKB | ChEBI) | ||||
Sequence: N | ||||||
Binding site | 120 | K+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 124-130 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: GTGVTGA | ||||||
Binding site | 153 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 156 | K+ (UniProtKB | ChEBI) | ||||
Sequence: S | ||||||
Binding site | 254 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: A | ||||||
Binding site | 323 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: G | ||||||
Binding site | 436 | AMP (UniProtKB | ChEBI) | ||||
Sequence: G | ||||||
Binding site | 437 | (6S)-NADPHX (UniProtKB | ChEBI) | ||||
Sequence: D |
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | ADP-dependent NAD(P)H-hydrate dehydratase activity | |
Molecular Function | ATP binding | |
Molecular Function | metal ion binding | |
Molecular Function | NADHX epimerase activity | |
Molecular Function | NADPHX epimerase activity | |
Biological Process | nicotinamide nucleotide metabolic process |
Keywords
- Molecular function
- Ligand
Names & Taxonomy
Protein names
- Recommended nameBifunctional NAD(P)H-hydrate repair enzyme
- Alternative names
Including 2 domains:
- Recommended nameADP-dependent (S)-NAD(P)H-hydrate dehydratase
- EC number
- Alternative names
- Recommended nameNAD(P)H-hydrate epimerase
- EC number
Gene names
Organism names
- Strain
- Taxonomic lineageArchaea > Euryarchaeota > Stenosarchaea group > Halobacteria > Halobacteriales
Accessions
- Primary accessionA0A2R6MB13
Proteomes
Interaction
Subunit
Homotetramer.
Structure
Family & Domains
Features
Showing features for domain, region.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 7-222 | YjeF N-terminal | ||||
Sequence: MAQVDANAAALGVPRKQLMESSGNAVAREVRSVADPGARVVVVAGRGNNGGDGFVAARFLEEYDCSVHLLGREETIATDIARENWAALQRAEYETEEVGGSREFELPDCDVVVDAMLGTGVTGALREPEATAAERIDESDATVVSVDVPSGVNADTGEASEALRASDDASGDEPRAPGAAVAADRVVTFHDQKPGLDSLDAEVTVADIGIPRAAEQ | ||||||
Region | 154-186 | Disordered | ||||
Sequence: VPSGVNADTGEASEALRASDDASGDEPRAPGAA | ||||||
Domain | 220-493 | YjeF C-terminal | ||||
Sequence: AEQFLGPGDLRPVRRGEKAEDARAYVIGGGPYTGAPALAAQAALRTGADLSFVAAPEPVAGQIQGYAEDLIVQSYEGERLTPEQVPDLVETAENYDDVVVLGPGLGSADETLDAAERFLAEFSGPVVVDADALPVVPEVETDATLVCTPNRKELAKMGGPDVESDDALRDHADGIEAFAADLGHVVLAKAKDDVISDGERTRINRAGTPGMTVGGTGDTLAGTVAGLLGGHDPFESACMAAYANGRAAELLDDRHDGLLASDLLDVLPRALWND |
Sequence similarities
Belongs to the NnrD/CARKD family.
Belongs to the NnrE/AIBP family.
In the C-terminal section; belongs to the NnrD/CARKD family.
In the N-terminal section; belongs to the NnrE/AIBP family.
Family and domain databases
Sequence
- Sequence statusComplete
- Length500
- Mass (Da)51,963
- Last updated2018-06-20 v1
- Checksum6B5595D1640877BB