SucD

• Description: succinyl-CoA synthetase (alpha subunit)
  
  

Gene name	sucD
Synonyms
Essential	no
Product	succinyl-CoA synthetase (alpha subunit)
Function	TCA cycle
Metabolic function and regulation of this protein in SubtiPathways: Central C-metabolism
MW, pI	31 kDa, 5.587
Gene length, protein length	900 bp, 300 aa
Immediate neighbours	sucC, smf
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: BSU16100

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + succinate + CoA = ADP + phosphate + succinyl-CoA (according to Swiss-Prot)

• Protein family: succinate/malate CoA ligase alpha subunit family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information: Reversible Michaelis-Menten FEBS Letters

• Domains:

• Modification: phosphorylation on (Ser-19 OR Thr-20) PubMed

• Cofactor(s):

• Effectors of protein activity:
  • Inhibited by 2-oxoglutarate, ATP and NADH FEBS Letters
    • GTP is not accept by the enzyme FEBS Letters

• Interactions:

• Localization:

Database entries

• Structure: 1JKJ (E. coli)

• Swiss prot entry: P80865

• KEGG entry: [3]

• E.C. number: 6.2.1.5

Additional information

The enzyme is a dimer FEBS Letters

Expression and regulation

• Operon: sucC-SucD

• Sigma factor:

• Regulation: repressed by glucose (2.4-fold) (CcpA) PubMed

• Regulatory mechanism: CcpA: transcription repression

• Additional information:

Biological materials

• Mutant: GP720 (spc), available in Stülke lab

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

1. Blencke et al. (2003) Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways. Metab Eng. 5: 133-149 PubMed
2. Macek et al. (2007) The serine/ threonine/ tyrosine phosphoproteome of the model bacterium Bacillus subtilis. Mol. Cell. Proteomics 6: 697-707 PubMed
3. Danson MJ et al. (1984) Citric acid cycle enzymes of the archaebacteria: citrate synthase and succinate thiokinase. FEBS Letters. FEBS Letters
4. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed