CysE

Gene name	cysE
Synonyms	cysA
Essential	no
Product	serine O-acetyltransferase
Function	biosynthesis of cysteine
Gene expression levels in SubtiExpress: cysE
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
Expression at a glance   PubMed

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids

This gene is a member of the following regulons

T-box

The gene

Basic information

• Locus tag: BSU00930

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

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

• Expression browser: cysE 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)

Valerie E Pye, Andrew P Tingey, Robert L Robson, Peter C E Moody
The structure and mechanism of serine acetyltransferase from Escherichia coli.
J Biol Chem: 2004, 279(39);40729-36
[PubMed:15231846] [WorldCat.org] [DOI] (P p)

Y Gagnon, R Breton, H Putzer, M Pelchat, M Grunberg-Manago, J Lapointe
Clustering and co-transcription of the Bacillus subtilis genes encoding the aminoacyl-tRNA synthetases specific for glutamate and for cysteine and the first enzyme for cysteine biosynthesis.
J Biol Chem: 1994, 269(10);7473-82
[PubMed:7510287] [WorldCat.org] (P p)