Sat

• Description: sulfate adenylyltransferase
  
  

Gene name	sat
Synonyms	ylnB
Essential	no
Product	sulfate adenylyltransferase
Function	sulfate activation
Metabolic function and regulation of this protein in SubtiPathways: Cys, Met & Sulfate assimilation
MW, pI	42 kDa, 5.646
Gene length, protein length	1146 bp, 382 aa
Immediate neighbours	cysP, cysC
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU15590

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + sulfate = diphosphate + adenylyl sulfate (according to Swiss-Prot)

• Protein family: sulfate adenylyltransferase family (according to Swiss-Prot)

• Paralogous protein(s): YitA

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• Swiss prot entry: O34764

• KEGG entry: [3]

• E.C. number: 2.7.7.4

Expression and regulation

• Operon: cysH-cysP-sat-cysC-ylnD-ylnE-ylnF

• Sigma factor: SigA

• Regulation:
  • repressed by casamino acids PubMed
  • repressed in the presence of cysteine (CymR)
  • induced by methionine starvation (S-box) PubMed

• Regulatory mechanism:
  • S-box: transcription termination/ antitermination, the S-box riboswitch binds S-adenosylmethionine resulting in termination PubMed
  • CymR: transcription repression

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Isabelle Martin-Verstraete, Institute Pasteur, Paris, France