A0A016EBB5 · A0A016EBB5_BACFG

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 site57-61(6S)-NADPHX (UniProtKB | ChEBI)
Binding site58K+ (UniProtKB | ChEBI)
Binding site126K+ (UniProtKB | ChEBI)
Binding site130-136(6S)-NADPHX (UniProtKB | ChEBI)
Binding site159(6S)-NADPHX (UniProtKB | ChEBI)
Binding site162K+ (UniProtKB | ChEBI)
Binding site263(6S)-NADPHX (UniProtKB | ChEBI)
Binding site326(6S)-NADPHX (UniProtKB | ChEBI)
Binding site377(6S)-NADPHX (UniProtKB | ChEBI)
Binding site412-416AMP (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 Functionkinase activity
Molecular Functionmetal ion binding
Molecular FunctionNADHX epimerase activity
Molecular FunctionNADPHX epimerase activity
Biological Processmetabolite repair
Biological Processnicotinamide nucleotide metabolic process
Biological Processphosphorylation

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
      M123_1189

Organism names

Accessions

  • Primary accession
    A0A016EBB5

Proteomes

Interaction

Subunit

Homotetramer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain9-218YjeF N-terminal
Domain228-501YjeF 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
    503
  • Mass (Da)
    53,849
  • Last updated
    2014-06-11 v1
  • Checksum
    AC2C0E54D2E5EA58
MKIFPSSSIKKLDAYTIEHEPIASIDLMERAAQALTKAITERWDITTPVTVFAGPGNNGGDALAVARMLAEKEYKVEAYLFNPKGELSADCQTNKELVEMMDNVKFSEVSTQFVPPALTMDHLVVDGLFGSGLNKPLSGGFAAVVKYINASPATVVAIDIPSGLMGEENTFNVKANIIRAQLTLSLQLPKLAFLFAENSEFVGEWKLLDINLSREAIEETESNYALLEAEEIHALIKPRNTFSHKGNFGHALLIAGSYGMAGASILAARACMRSGVGLLTVHAPIRNNDILQISVPEAIIESDASDTYFACPTDTDDYQAVGIGPGIGRSEETEAALLEQLSGCQTPLVLDADALNILANHRHALTTLPKGSILTPHPKELERMVGKCQNSYERLMKACELARTAKVHIILKGAYSAIITPSGKCYFNSTGNPGMATAGSGDVLTGVVLALLAQGYPAEEAAKIGTYVHGLAGDFARKKQGVISMTAGDIISNLPLAWRLVSE

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
JGDS01000041
EMBL· GenBank· DDBJ
EXZ74386.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

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.
We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.
FeedbackHelp