A0A935N2H4 · A0A935N2H4_UNCIG

  • Protein
    Bifunctional NAD(P)H-hydrate repair enzyme
  • Gene
    nnrE
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    4/5

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.

Caution

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 site58-62(6S)-NADPHX (UniProtKB | ChEBI)
Binding site59K+ (UniProtKB | ChEBI)
Binding site131K+ (UniProtKB | ChEBI)
Binding site135-141(6S)-NADPHX (UniProtKB | ChEBI)
Binding site146(6S)-NADPHX (UniProtKB | ChEBI)
Binding site164(6S)-NADPHX (UniProtKB | ChEBI)
Binding site167K+ (UniProtKB | ChEBI)
Binding site265(6S)-NADPHX (UniProtKB | ChEBI)
Binding site336(6S)-NADPHX (UniProtKB | ChEBI)
Binding site387(6S)-NADPHX (UniProtKB | ChEBI)
Binding site424-428AMP (UniProtKB | ChEBI)
Binding site453AMP (UniProtKB | ChEBI)
Binding site454(6S)-NADPHX (UniProtKB | ChEBI)

GO annotations

AspectTerm
Molecular FunctionADP-dependent NAD(P)H-hydrate dehydratase activity
Molecular FunctionATP binding
Molecular Functionmetal ion binding
Molecular FunctionNAD(P)HX epimerase activity
Biological Processmetabolite repair
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
      IPI19_01315

Organism names

  • Taxonomic identifier
  • Strain
    • Ega_18-Q3-R5-49_MAXAC.056
  • Taxonomic lineage
    Bacteria > Ignavibacteriota > Ignavibacteria > Ignavibacteriales

Accessions

  • Primary accession
    A0A935N2H4

Proteomes

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain10-220YjeF N-terminal
Domain230-513YjeF 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.

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    518
  • Mass (Da)
    56,360
  • Last updated
    2023-02-22 v1
  • MD5 Checksum
    3571C4F5B19DCC435B27F2199BAFA6E5
MIPLYNTSQIRNLDSFAIRRLSVPGIVLMENAALGIYHSILERVENINCLGFVCGKGNNGGDGYAVARHFSNAGFEVKVVCLGSENDLSEDCRTNFNILKNLSSQRKNLKVKSYKSVKDINWLRGCNVIVDAILGSGFTGELKEPYSTIVESLNNITAFKCAIDVPTGLNADTGFGEIVFNSDLTITLGEFKKGLFIGDGYEFCGEVVLKEIGIGRDYFDNINPDTYLTEPEDVYSSLPRRKKSVHKYSAGKVLSIAGSYKYPGAAALTSQSALVSGAGASILAIPESTKKLIHKNLLEVVVESYGNKKSKYFDAEALKTLQQKIKWADVVAVGPGLGREVDTIKAVQQFMLDQKFKFAVIDADALFALDKVFLEKVNLKNCILTPHLGEFSQMIGVESGMIEKDILSYGRDFATKNECILVLKGAPTFIFNSDGEAFINTVGNSGMAKFGSGDVLTGIIAGLLSQNKNPENDAIAGVYLHSLSADLLLNEKPISNYLASDIMNNYPSAVKFIEESIV

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JADJIH010000001
EMBL· GenBank· DDBJ
MBK7497758.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
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