A0A271LQJ7 · A0A271LQJ7_9HYPH

  • Protein
    SoxAX cytochrome complex subunit A
  • Gene
    soxA
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    4/5

Function

function

C-type diheme cytochrome, which is part of the SoxAX cytochrome complex involved in sulfur oxidation. The SoxAX complex catalyzes the formation of a heterodisulfide bond between the conserved cysteine residue on a sulfur carrier SoxYZ complex subunit SoxY and thiosulfate or other inorganic sulfur substrates. This leads to the liberation of two electrons, which may be transferred from the SoxAX complex to another cytochrome c that then channels them into the respiratory electron transport chain. Some electrons may be used for reductive CO2 fixation.

Caution

The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.

Catalytic activity

Cofactor

heme (UniProtKB | Rhea| CHEBI:30413 )

Note: Binds 2 heme groups per subunit.

Features

Showing features for binding site, active site.

TypeIDPosition(s)Description
Binding site74heme c 1 (UniProtKB | ChEBI); covalent
Binding site77heme c 1 (UniProtKB | ChEBI); covalent
Binding site78Fe (UniProtKB | ChEBI) of heme c 1 (UniProtKB | ChEBI); axial binding residue
Binding site112Fe (UniProtKB | ChEBI) of heme c 1 (UniProtKB | ChEBI); axial binding residue
Binding site175heme c 2 (UniProtKB | ChEBI); covalent
Binding site178heme c 2 (UniProtKB | ChEBI); covalent
Binding site179Fe (UniProtKB | ChEBI) of heme c 2 (UniProtKB | ChEBI); axial binding residue
Binding site216substrate
Active site220Cysteine persulfide intermediate
Binding site220Fe (UniProtKB | ChEBI) of heme c 2 (UniProtKB | ChEBI); axial binding residue

GO annotations

AspectTerm
Cellular Componentcytochrome complex
Cellular Componentperiplasmic space
Molecular Functionelectron transfer activity
Molecular Functionheme binding
Molecular Functionmetal ion binding
Molecular Functionoxidoreductase activity, acting on a sulfur group of donors, cytochrome as acceptor
Molecular Functiontransferase activity
Biological Processsulfur oxidation

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    SoxAX cytochrome complex subunit A
  • EC number
  • Alternative names
    • Protein SoxA
    • Sulfur oxidizing protein A
    • Thiosulfate-oxidizing multienzyme system protein SoxA

Gene names

    • Name
      soxA
    • ORF names
      CIT26_12925

Organism names

  • Taxonomic identifier
  • Organism
  • Strain
    • SDW018
  • Taxonomic lineage
    Bacteria > Pseudomonadota > Alphaproteobacteria > Hyphomicrobiales > Phyllobacteriaceae > Mesorhizobium

Accessions

  • Primary accession
    A0A271LQJ7

Proteomes

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for signal, chain.

TypeIDPosition(s)Description
Signal1-21
ChainPRO_501317098622-259SoxAX cytochrome complex subunit A

Interaction

Subunit

Heterodimer of SoxA and SoxX.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain58-145Cytochrome c
Domain160-250Cytochrome c

Sequence similarities

Belongs to the SoxA family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    259
  • Mass (Da)
    28,258
  • Last updated
    2017-12-20 v1
  • Checksum
    AD894396E38E121E
MHALWRLAAVSAATICGIVSAAGIEDGEKRSGFDFMTPETQALQADDMSNPGMLWVLQGEQLWQQAEGRADVACAGCHDNASRTMRGVAARYPAFEAARGRPIDLAGRINSCRAERQQAEALAPESDALLALTAYVAHQSRGMPITPATDPRLAPFRDNGRRLFQSRIGQLDLSCASCHDDNWGKRLGGSVIPQAHPTGYPLYRLEWQTVGSLQRRLRNCMVGVRAEPFAFGAPELVDLELHLTERARGLLVETPAVRP

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
NPKJ01000041
EMBL· GenBank· DDBJ
PAQ09438.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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