CysC

• Description: adenylyl-sulfate kinase
  
  

Gene name	cysC
Synonyms	ylnC
Essential	no
Product	adenylyl-sulfate kinase
Function	sulfate reduction and activation
Metabolic function and regulation of this protein in SubtiPathways: Cys, Met & Sulfate assimilation
MW, pI	22 kDa, 5.083
Gene length, protein length	591 bp, 197 aa
Immediate neighbours	sat, ylnD
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: BSU15600

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

sulfur metabolism

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + adenylyl sulfate = ADP + 3'-phosphoadenylyl sulfate (according to Swiss-Prot)

• Protein family: APS kinase family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 3CR8 (from Thiobacillus denitrificans, 46% identity, 62% similarity) PubMed

• UniProt: O34577

• KEGG entry: [3]

• E.C. number: 2.7.1.25

Expression and regulation

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

• Sigma factor: SigA PubMed

• 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