CysE

• Description: serine O-acetyltransferase
  
  

Gene name	cysE
Synonyms	cysA
Essential	no
Product	serine O-acetyltransferase
Function	biosynthesis of cysteine
Metabolic function and regulation of this protein in SubtiPathways: tRNA charging, Cys, Met & Sulfate assimilation
MW, pI	23 kDa, 9.489
Gene length, protein length	651 bp, 217 aa
Immediate neighbours	gltX, cysS
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: BSU00930

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Acetyl-CoA + L-serine = CoA + O-acetyl-L-serine (according to Swiss-Prot)

• Protein family: transferase hexapeptide repeat 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: cytoplasm (according to Swiss-Prot)

Database entries

• Structure: 1T3D (from Escherichia coli, 48% identity, 64% similarity) PubMed

• UniProt: Q06750

• KEGG entry: [3]

• E.C. number: 2.3.1.30

Expression and regulation

• Operon: gltX-cysE-cysS-mrnC-yacO-yacP PubMed

• Sigma factor: SigA PubMed

• Regulation: repression by cysteine (T-box) PubMed

• Regulatory mechanism: T-box, overlaps a transcription terminator upstream of cysE: transcription antitermination PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Ana Gutiérrez-Preciado, Tina M Henkin, Frank J Grundy, Charles Yanofsky, Enrique Merino
Biochemical features and functional implications of the RNA-based T-box regulatory mechanism.
Microbiol Mol Biol Rev: 2009, 73(1);36-61
[PubMed:19258532] [WorldCat.org] [DOI] (I p)