Pgi

• Description: glucose 6-phosphate isomerase, glycolytic/ gluconeogenic enzyme
  
  

Gene name	pgi
Synonyms	yugL
Essential	no
Product	glucose-6-phosphate isomerase
Function	enzyme in glycolysis/ gluconeogenesis
MW, pI	50.4 kDa, 4.85
Gene length, protein length	1353 bp, 451 amino acids
Immediate neighbours	yugK, yugM
Gene sequence (+200bp)	Protein sequence
Genetic context

The gene

Basic information

• Coordinates: 3219772 - 3221124

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: D-glucose 6-phosphate = D-fructose 6-phosphate

• Protein family: GPI family

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: phosphorylation (STY) PubMed

• Cofactor(s):

• Effectors of protein activity: Inhibited by 6-phosphogluconate (in B.caldotenax, B.stearothermophilus) PubMed

• Interactions:

• Localization: cytoplasm

Database entries

• Structure: Geobacillus stearothermophilus NCBI, Geobacillus stearothermophilus NCBI

• Swiss prot entry: [3]

• KEGG entry: [4]

• E.C. number: [5]

Expression and regulation

• Operon: pgi PubMed

• Sigma factor:

• Regulation: constitutively expressed PubMed

• Additional information:

Biological materials

• Mutant: GP508 (spc), available in Stülke lab

• Expression vector: pGP762 (N-terminal His-tag, in pWH844), available in Stülke lab

• lacZ fusion: pGP510 (in pAC6), available in Stülke lab

• GFP fusion:

• two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab

• Antibody:

Labs working on this gene/protein

Jörg Stülke, University of Göttingen, Germany homepage

References

1. Lee et al. (2008) Crystallization and preliminary crystallographic study of the phosphoglucose isomerase from Bacillus subtilis. Acta Cryst. Sect. F 64:1181-1183. PubMed
2. Lin and Prasad (1975) Selection of a mutant of Bacillus subtilis deficient in glucose-6-phosphate dehydrogenase and phosphoglucoisomerase. J. Gen. Microbiol. 83:419-421. PubMed
3. 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
4. Prasad and Freese (1974) Cell lysis of Bacillus subtilis caused by intracellular accumulation of glucose-1-phosphate. J. Bacteriol. 118:1111-1122. PubMed
5. Stülke, J., Martin-Verstraete, I., Glaser, P. & Rapoport, G. (2001) Characterization of glucose repression resistant mutants of Bacillus subtilis: identification of the glcR gene. Arch. Microbiol. 175: 441-449. PubMed
6. Macek et al. (2007) The serine/threonine/tyrosine phosphoproteome of the model bacterium Bacillus subtilis. Mol Cell Proteomics 6(4): 697-707. PubMed