B0D0V8 · B0D0V8_LACBS

Function

function

Catalyzes the first intracellular reaction of sulfate assimilation, forming adenosine-5'-phosphosulfate (APS) from inorganic sulfate and ATP. Plays an important role in sulfate activation as a component of the biosynthesis pathway of sulfur-containing amino acids.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.

Catalytic activity

Activity regulation

Allosterically inhibited by 3'-phosphoadenosine 5'-phosphosulfate (PAPS).

Pathway

Sulfur metabolism; hydrogen sulfide biosynthesis; sulfite from sulfate: step 1/3.

Features

Showing features for binding site, active site, site.

TypeIDPosition(s)Description
Binding site198sulfate (UniProtKB | ChEBI)
Binding site198-201ATP (UniProtKB | ChEBI)
Active site199
Active site200
Binding site200sulfate (UniProtKB | ChEBI)
Active site201
Site204Transition state stabilizer
Site207Transition state stabilizer
Binding site292-295ATP (UniProtKB | ChEBI)
Binding site296sulfate (UniProtKB | ChEBI)
Site331Induces change in substrate recognition on ATP binding
Binding site334ATP (UniProtKB | ChEBI)
Binding site435-4383'-phosphoadenylyl sulfate (UniProtKB | ChEBI); allosteric inhibitor
Binding site5203'-phosphoadenylyl sulfate (UniProtKB | ChEBI); allosteric inhibitor

GO annotations

AspectTerm
Cellular Componentcytoplasm
Molecular Functionadenylylsulfate kinase activity
Molecular FunctionATP binding
Molecular Functionsulfate adenylyltransferase (ATP) activity
Biological Processcysteine biosynthetic process
Biological Processhydrogen sulfide biosynthetic process
Biological Processmethionine biosynthetic process
Biological Processsulfate assimilation

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Sulfate adenylyltransferase
  • EC number
  • Alternative names
    • ATP-sulfurylase
    • Sulfate adenylate transferase
      (SAT
      )

Gene names

    • Name
      MET3
    • ORF names
      LACBIDRAFT_183631

Organism names

Accessions

  • Primary accession
    B0D0V8

Proteomes

Subcellular Location

Keywords

Interaction

Subunit

Homohexamer. Dimer of trimers.

Protein-protein interaction databases

Structure

Family & Domains

Features

Showing features for region, domain.

TypeIDPosition(s)Description
Region1-170N-terminal
Domain4-165ATP-sulfurylase PUA-like
Domain175-388Sulphate adenylyltransferase catalytic
Region396-575Allosteric regulation domain; adenylyl-sulfate kinase-like

Domain

The adenylyl-sulfate kinase (APS kinase) is non-functional. It is involved in allosteric regulation by PAPS. PAPS binding induces a large rotational rearrangement of domains lowering the substrate affinity of the enzyme.

Sequence similarities

In the C-terminal section; belongs to the APS kinase family.
In the N-terminal section; belongs to the sulfate adenylyltransferase family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    575
  • Mass (Da)
    64,109
  • Last updated
    2008-02-26 v1
  • Checksum
    27ACA7633EBA1663
MANAAHGGILKDLVARDDAISSHLREEAFTLPDIVLTERQLCDLELIINGGFSPLEGFMNEKDYQSVVDTLRLADGTLFPIPITLDISKEDIDRLSLAPGVRVALRDPRDDQALAIITVDDIYTPDRVKEAIQVFGADDPAHPSVAYLRNRVQDFYIGGKVQAIQSPSHFDYVALRYTPSELRSHFKKLAWRKVVAFQTRNPMHRAHRELTVRAARQRQANVLIHPVVGLTKPGDVDHYTRVRVYQAIMQKYPNGMGHLALLPLAMRMAGPREAVWHAIIRKNYGATHFIVGRDHAGPGKNSQGKDFYGPYDAQDLVIKYHDELQIEMVPFQQMTYIPSTDEYQPADEVPRGVQTLDISGTELRKRLRTGAPIPDWFSYDAVVKVLRESYPPRHKQGFVLFLTGLHNSGKDAIAKALQVTLNQQGGRSVSLLLGETVRQELSPKLGFSAEDRHENVHRIAYVSAELARAGAAVIAAPIAPYERSRELARQTVLQSAGAGGNFFLIHVATPLEHCEKTDRRGLYTRARLGEITGFTGVDDPYEAPEHAELTVDVTKQSIPEIVHSIILLLETGSLL

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
DS547095
EMBL· GenBank· DDBJ
EDR11892.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

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