SacP

• Description: trigger enzyme: sucrose-specific phosphotransferase system, EIIBC component
  
  

Gene name	sacP
Synonyms	ipa-49d
Essential	no
Product	trigger enzyme: sucrose-specific phosphotransferase system, EIIBC component
Function	sucrose uptake and phosphorylation, control of SacT activity
Metabolic function and regulation of this protein in SubtiPathways: Sugar catabolism
MW, pI	49 kDa, 7.026
Gene length, protein length	1383 bp, 461 aa
Immediate neighbours	sacA, ywcJ
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: BSU38050

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Protein EIIB N(pi)-phospho-L-histidine/cysteine + sugar = protein EIIB + sugar phosphate (according to Swiss-Prot)

• Protein family: PTS permease, sucrose permease (Scr) family PubMed

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• Structure:

• Swiss prot entry: P05306

• KEGG entry: [3]

• E.C. number: 2.7.1.69

Expression and regulation

• Operon: sacP-sacA-ywdA

• Sigma factor: SigA

• Regulation: repressed by glucose (CcpA), repressed by casamino acids PubMed

• Regulatory mechanism: CcpA: transcription repression

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

1. Reizer et al. (1999) Novel phosphotransferase system genes revealed by genome analysis - the complete complement of PTS proteins encoded within the genome of Bacillus subtilis. Microbiology 145: 3419-3429 PubMed
2. Mäder et al. (2002) Transcriptome and Proteome Analysis of Bacillus subtilis Gene Expression Modulated by Amino Acid Availability. J. Bacteriol 184: 1844288-4295 PubMed
3. Fouet, A., Arnaud, M., Klier, A., and G. Rapoport. (1987) Bacillus subtilis sucrose-specific enzyme II of the phosphotransferase system: Expression in Escherichia coli and homology to enzymes II from enteric bacteria. Proc Natl Acad Sci USA 84: 8773-8777. PubMed
4. Débarbouillé, M., Arnaud, M., Fouet, A., Klier, A., and Rapoport, G. (1990) The sacT gene regulating the sacPA operon in Bacillus subtilis shares strong homology with transcriptional antiterminators. J Bacteriol 172: 3966-3973. PubMed
5. Arnaud, M., Débarbouillé, M., Rapoport, G., Saier, M. H., and Reizer, J. (1996) In vitro reconstitution of transcriptional antitermination by the SacT and SacY proteins of Bacillus subtilis. J Biol Chem 271: 18966-18972. PubMed
6. Sutrina, S. L., Reddy, P., Saier, M. H., Jr & Reizer, J. (1990). The glucose permease of Bacillus subtilis is a single polypeptide chain that functions to energize the sucrose permease. J Biol Chem 265, 18581-18589. PubMed
7. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed