Eno

• Description: enolase, glycolytic/ gluconeogenic enzyme
  
  

Gene name	eno
Synonyms
Essential	yes
Product	Enolase
Function	enzyme in glycolysis/ gluconeogenesis
MW, pI	46,4 kDa, 4.49
Gene length, protein length	1290 bp, 430 amino acids
Immediate neighbours	pgm, yvgK
Gene sequence (+200bp)	Protein sequence
Genetic context

The gene

Basic information

• Coordinates: 3475589 - 3476878

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: 2-phospho-D-glycerate = phosphoenolpyruvate + H(2)O

• Protein family: enolase family

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:
  • substrate binding domain (366–369)

• Modification: phosphorylated during sporulation

• Cofactor(s): magnesium ion

• Effectors of protein activity:

• Interactions:

• Localization: cytoplasm.PubMed secreted. cell surface

Database entries

• Structure:

• Swiss prot entry: [3]

• KEGG entry: [4]

• E.C. number: [5]

Expression and regulation

• Operon:
  • cggR-gapA-pgk-tpiA-pgm-eno
  • cggR-gapA

• Sigma factor: SigA

• Regulation: neg. regulated by CggR PubMed, induced by sugar

• Regulatory mechanism: repressor CggR PubMed, covalent substrate binding (Lys-339) causes inactivation, and is a possible signal for export of the protein

• Additional information:

Labs working on this gene/protein

Jörg Stülke, University of Göttingen, Germany Homepage

References

1. Commichau, F. M., Rothe, F. M., Herzberg, C., Wagner, E., Hellwig, D., Lehnik-Habrink, M., Hammer, E., Völker, U. & Stülke, J. Novel activities of glycolytic enzymes in Bacillus subtilis: Interactions with essential proteins involved in mRNA processing. subm.
2. Ludwig, H., Homuth, G., Schmalisch, M., Dyka, F. M., Hecker, M., and Stülke, J. (2001) Transcription of glycolytic genes and operons in Bacillus subtilis: evidence for the presence of multiple levels of control of the gapA operon. Mol Microbiol 41, 409-422.PubMed