A0A3S9P2B6 · A0A3S9P2B6_9BACT

  • Protein
    Bifunctional NAD(P)H-hydrate repair enzyme
  • Gene
    nnrD
  • 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.

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 site57-61(6S)-NADPHX (UniProtKB | ChEBI)
Binding site58K+ (UniProtKB | ChEBI)
Binding site124K+ (UniProtKB | ChEBI)
Binding site128-134(6S)-NADPHX (UniProtKB | ChEBI)
Binding site157(6S)-NADPHX (UniProtKB | ChEBI)
Binding site160K+ (UniProtKB | ChEBI)
Binding site260(6S)-NADPHX (UniProtKB | ChEBI)
Binding site323(6S)-NADPHX (UniProtKB | ChEBI)
Binding site374(6S)-NADPHX (UniProtKB | ChEBI)
Binding site410-414AMP (UniProtKB | ChEBI)
Binding site439AMP (UniProtKB | ChEBI)
Binding site440(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 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
      nnrD
    • Synonyms
      nnrE
    • ORF names
      EI427_08650

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • L12M1
  • Taxonomic lineage
    Bacteria > Bacteroidota > Cytophagia > Cytophagales > Flammeovirgaceae > Flammeovirga

Accessions

  • Primary accession
    A0A3S9P2B6

Proteomes

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain9-215YjeF N-terminal
Domain225-499YjeF 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.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    501
  • Mass (Da)
    55,176
  • Last updated
    2019-05-08 v1
  • Checksum
    6871ACDA27C1B697
MKLFTTQQIRDWDIYTIKNEPIDSIDLMERAANRLTDWYYENCERYTDITFFCGVGNNGGDGLVMARLLHLLHFNVKCYIVHFSDKISEDFKQNLSRLPKNVPCYDIKEDSDVPVINDETVLVDCIFGSGLSRPPKGITQKTIIEINRSNNPVIAIDIASGLYADHYSTHFQTIIEADITLTLEVPKLAMLFPENDKNVGELNIIPIDLSKKFKEETPSNYFFTTHKNAQEIYRPRKRFDHKGKFGNLLIVGGSKGMIGAVQLATKAGLRAGAGKTTALVPACGYEIIQATIPEAMCISDPSRNHIVASTLVSKYSAIGIGPGIGQHEQTQKAVRSIIEDAEKPIVLDADALNMLSENDEWWSLIPENSILTPHLGEFERLAGIQFINSFDRLEAASKMAKEHNVIIVLKGANTAICLPNGQIHFNSTGNAGLAKGGSGDALLGIISSLLAQKYKPYEAAILGVYLHGKAGDYASADKGFESMVASDVIESLGKAFFELLK

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP034562
EMBL· GenBank· DDBJ
AZQ62304.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

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