A0A2S6CUP3 · A0A2S6CUP3_9CYAN

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.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.
The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Cofactor

Protein has several cofactor binding sites:
K+ (UniProtKB | Rhea| CHEBI:29103 )

Note: Binds 1 potassium ion per subunit.
Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Features

Showing features for binding site.

TypeIDPosition(s)Description
Binding site60-64(6S)-NADPHX (UniProtKB | ChEBI)
Binding site61K+ (UniProtKB | ChEBI)
Binding site121K+ (UniProtKB | ChEBI)
Binding site125-131(6S)-NADPHX (UniProtKB | ChEBI)
Binding site154(6S)-NADPHX (UniProtKB | ChEBI)
Binding site157K+ (UniProtKB | ChEBI)
Binding site330(6S)-NADPHX (UniProtKB | ChEBI)
Binding site380(6S)-NADPHX (UniProtKB | ChEBI)
Binding site414-418AMP (UniProtKB | ChEBI)
Binding site443AMP (UniProtKB | ChEBI)
Binding site444(6S)-NADPHX (UniProtKB | ChEBI)

GO annotations

AspectTerm
Molecular FunctionADP-dependent NAD(P)H-hydrate dehydratase activity
Molecular FunctionATP binding
Molecular Functionmetal ion binding
Molecular FunctionNADHX epimerase activity
Molecular FunctionNADPHX epimerase activity
Biological Processnicotinamide nucleotide metabolic process

Keywords

Names & Taxonomy

Protein names

  • Recommended name
    Bifunctional NAD(P)H-hydrate repair enzyme
  • Alternative names
    • Nicotinamide nucleotide repair protein

Including 2 domains:

  • Recommended name
    ADP-dependent (S)-NAD(P)H-hydrate dehydratase
  • EC number
  • Alternative names
    • ADP-dependent NAD(P)HX dehydratase
  • Recommended name
    NAD(P)H-hydrate epimerase
  • EC number

Gene names

    • Name
      nnrE
    • Synonyms
      nnrD
    • ORF names
      CUN59_10170

Organism names

Accessions

  • Primary accession
    A0A2S6CUP3

Proteomes

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain13-211YjeF N-terminal
Domain225-527YjeF C-terminal

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.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    527
  • Mass (Da)
    56,571
  • Last updated
    2018-07-18 v1
  • Checksum
    165DD846F9438D88
MNKDQFVVTASQMRDIETRIFTAGMPVAALMEKVAGLISQRLQAIISPGECVGILAGSGHNGGDALVVARELHFRGYQVWIYQPFSKLKELTAQHFQYARNLAIPCYQEITELPNCDFLIDGLFGFGLEREITDTIATAINYFNAGNQPIISIDIPSGLHTDTGEVLGTAIQAQYTFCLGLWKQGLLQEQAIPYIGQAQLIDFDIPLADIYTVLGDSPQIKRITSTTALSTLPLPLPLTTHKYKQGHLLLICGSRRYAGGAILTALGARASGVGMLSIAVPATIKPLLVSHLPEALIIGCPETETGAISHLQLPENTDLNSFTAIACGPGLTQDHPALIPEIIQCECPLVLDADALNILAQIGTISTLQQRTAATILTPHTGEFHRLFPHISPLNRIKAVQTAAQESVAIILLKGARTAISNPQGHVWINPESTPALARGGSGDVLTGLLGGLLAQILTKAGGGFWKDQVLDQIVSVTMNKVISIEDIVATATWWHSQAGILAAQARTELGVDAFTLTQYLIPVLKR

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
PGEM01000070
EMBL· GenBank· DDBJ
PPJ63422.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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