B4S9H5 · NIFH_PROA2

Function

function

The key enzymatic reactions in nitrogen fixation are catalyzed by the nitrogenase complex, which has 2 components: the iron protein and the molybdenum-iron protein.

Catalytic activity

Cofactor

[4Fe-4S] cluster (UniProtKB | Rhea| CHEBI:49883 )

Note: Binds 1 [4Fe-4S] cluster per dimer.

Features

Showing features for binding site.

127420406080100120140160180200220240260
TypeIDPosition(s)Description
Binding site8-15ATP (UniProtKB | ChEBI)
Binding site94[4Fe-4S] cluster (UniProtKB | ChEBI); ligand shared between dimeric partners
Binding site131[4Fe-4S] cluster (UniProtKB | ChEBI); ligand shared between dimeric partners

GO annotations

AspectTerm
Molecular Function4 iron, 4 sulfur cluster binding
Molecular FunctionATP binding
Molecular Functionmetal ion binding
Molecular Functionnitrogenase activity
Biological Processnitrogen fixation

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Nitrogenase iron protein
  • EC number
  • Alternative names
    • Nitrogenase Fe protein
    • Nitrogenase component II
    • Nitrogenase reductase

Gene names

    • Name
      nifH
    • Ordered locus names
      Paes_1627

Organism names

Accessions

  • Primary accession
    B4S9H5

Proteomes

PTM/Processing

Features

Showing features for chain, modified residue.

Type
IDPosition(s)Description
ChainPRO_10002118801-274Nitrogenase iron protein
Modified residue97ADP-ribosylarginine; by dinitrogenase reductase ADP-ribosyltransferase

Post-translational modification

The reversible ADP-ribosylation of Arg-97 inactivates the nitrogenase reductase and regulates nitrogenase activity.

Keywords

Interaction

Subunit

Homodimer.

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the NifH/BchL/ChlL family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    274
  • Mass (Da)
    29,919
  • Last updated
    2008-09-23 v1
  • MD5 Checksum
    1CEE767339CFC89212C1C69CE49D3820
MRKIAIYGKGGIGKSTTTQNTVAGLAEMGNKVMVVGCDPKADSTRLLLGGLTQKTVLDTLREEGEDVELEDIIKEGYGASRCTESGGPEPGVGCAGRGIITSVNLLEQLGAYDDEWGLDYVFYDVLGDVVCGGFAMPIRDGKAQEIYIVVSGEMMAMYAANNICKGILKYADAGGVRLGGLICNSRKVDNEREMIEELARQLGTQMIHFVPRDNMVQRAEINRKTVIDFDPSHNQADEYRALATKIDQNEMFVIPKPLEIEELEKLLIDFGIAN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP001108
EMBL· GenBank· DDBJ
ACF46645.1
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.
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