A0A847PT93 · A0A847PT93_9EURY

  • 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

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 site55-59(6S)-NADPHX (UniProtKB | ChEBI)
Binding site56K+ (UniProtKB | ChEBI)
Binding site130K+ (UniProtKB | ChEBI)
Binding site134-140(6S)-NADPHX (UniProtKB | ChEBI)
Binding site166(6S)-NADPHX (UniProtKB | ChEBI)
Binding site169K+ (UniProtKB | ChEBI)
Binding site258(6S)-NADPHX (UniProtKB | ChEBI)
Binding site326(6S)-NADPHX (UniProtKB | ChEBI)
Binding site376(6S)-NADPHX (UniProtKB | ChEBI)
Binding site441AMP (UniProtKB | ChEBI)
Binding site442(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
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
      GX152_04110

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • AS10tlH2TH_61
  • Taxonomic lineage
    Archaea > Euryarchaeota > Stenosarchaea group > Methanomicrobia > Methanosarcinales > Methanosarcinaceae > Methanosarcina

Accessions

  • Primary accession
    A0A847PT93

Proteomes

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain9-222YjeF N-terminal
Domain224-499YjeF 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
    502
  • Mass (Da)
    52,599
  • Last updated
    2021-09-29 v1
  • Checksum
    4C4D2196EAC99313
MRCISSLRMKAIDRNCEGLGLLPVQLMENAGAVVTQSIREKLGSGKVLFIAGRGNNGGDAFVAARHLAGFSGYTVKVILLGKARDIGTKEAFHNFSLLKFSRVEVLEITDSSQLEAAASDWFSEADLIVDAVFGTGIKGKIKEPESTAIDLINLEGKTGKTIISVDIPSGLDPDGGSFEKAVHAGLTVTFHRMKIGLLSEKAKEYTGVIKVAEIGIFADAEQYVGPGDLMMLHKRKSEGHKGDSGKILVIGGGPYYGAPALAALAALKAGADLVTVAVPVHVAKIVASYSPNLIVQKLSSNVLCPDDLSILMDLINSHDVVVMGMGLGRAAETLEAVRKILPFCRKAVLDADALAALSGVIFESLAGNCELIVTPHAGEFSLLRNMGTPEKIESRIKAAREFSEENGAVTLLKGKIDIISDGKQTLLNRTGNAGMTVGGTGDVLAGLTGSLFSRNPAFLAAACATYINGAAGDLAFEKAGNGLLATDVIEKIPEVIKEAEIG

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JAAYKR010000109
EMBL· GenBank· DDBJ
NLN43379.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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