Difference between revisions of "SacB"

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|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[pbpE]]'', ''[[levB]]''
 
|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[pbpE]]'', ''[[levB]]''
 
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|style="background:#FAF8CC;" align="center"|'''Sequences'''||[http://bsubcyc.org/BSUB/sequence-aa?type=GENE&object=BSU34450 Protein] [http://bsubcyc.org/BSUB/sequence?type=GENE&object=BSU34450 DNA] [http://bsubcyc.org/BSUB/seq-selector?chromosome=CHROM-1&object=BSU34450 Advanced_DNA]
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|style="background:#FAF8CC;" align="center"|'''Sequences'''||[http://bsubcyc.org/BSUB/sequence-aa?type=GENE&object=BSU34450 Protein] [http://bsubcyc.org/BSUB/sequence?type=GENE&object=BSU34450 DNA] [http://bsubcyc.org/BSUB/seq-selector?chromosome=CHROM-1&object=BSU34450 DNA_with_flanks]
 
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|colspan="2" | '''Genetic context''' <br/> [[Image:sacB_context.gif]]
 
|colspan="2" | '''Genetic context''' <br/> [[Image:sacB_context.gif]]

Revision as of 11:20, 14 May 2013

  • Description: levansucrase

Gene name sacB
Synonyms
Essential no
Product levansucrase
Function utilization of sucrose, production of levan
Gene expression levels in SubtiExpress: sacB
Metabolic function and regulation of this protein in SubtiPathways:
Sugar catabolism, Stress
MW, pI 52 kDa, 6.175
Gene length, protein length 1419 bp, 473 aa
Immediate neighbours pbpE, levB
Sequences Protein DNA DNA_with_flanks
Genetic context
SacB context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
SacB expression.png




























Categories containing this gene/protein

utilization of specific carbon sources

This gene is a member of the following regulons

DegU regulon, SacY regulon

The gene

Basic information

  • Locus tag: BSU34450

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Sucrose + (6)-beta-D-fructofuranosyl-(2->)(n) alpha-D-glucopyranoside = glucose + (6)-beta-D-fructofuranosyl-(2->)(n+1) alpha-D-glucopyranoside (according to Swiss-Prot)
  • Protein family: glycosyl hydrolase 68 family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure: 1PT2 (complex with sucrose), 1OYG
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
    • induction by sucrose (at high concentration) (SacY) PubMed
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion: pGP564 (in pAC7), a series of RAT mutations in pAC7, all available in Stülke lab
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Reviews

Massimiliano Marvasi, Pieter T Visscher, Lilliam Casillas Martinez
Exopolymeric substances (EPS) from Bacillus subtilis: polymers and genes encoding their synthesis.
FEMS Microbiol Lett: 2010, 313(1);1-9
[PubMed:20735481] [WorldCat.org] [DOI] (I p)

Original publications

Clarita Olvera, Sara Centeno-Leija, Paulina Ruiz-Leyva, Agustín López-Munguía
Design of chimeric levansucrases with improved transglycosylation activity.
Appl Environ Microbiol: 2012, 78(6);1820-5
[PubMed:22247149] [WorldCat.org] [DOI] (I p)

Birgit Voigt, Haike Antelmann, Dirk Albrecht, Armin Ehrenreich, Karl-Heinz Maurer, Stefan Evers, Gerhard Gottschalk, Jan Maarten van Dijl, Thomas Schweder, Michael Hecker
Cell physiology and protein secretion of Bacillus licheniformis compared to Bacillus subtilis.
J Mol Microbiol Biotechnol: 2009, 16(1-2);53-68
[PubMed:18957862] [WorldCat.org] [DOI] (I p)

Kensuke Tsukahara, Mitsuo Ogura
Promoter selectivity of the Bacillus subtilis response regulator DegU, a positive regulator of the fla/che operon and sacB.
BMC Microbiol: 2008, 8;8
[PubMed:18197985] [WorldCat.org] [DOI] (I e)

Y Pereira, M F Petit-Glatron, R Chambert
yveB, Encoding endolevanase LevB, is part of the sacB-yveB-yveA levansucrase tricistronic operon in Bacillus subtilis.
Microbiology (Reading): 2001, 147(Pt 12);3413-9
[PubMed:11739774] [WorldCat.org] [DOI] (P p)

A M Crutz, M Steinmetz, S Aymerich, R Richter, D Le Coq
Induction of levansucrase in Bacillus subtilis: an antitermination mechanism negatively controlled by the phosphotransferase system.
J Bacteriol: 1990, 172(2);1043-50
[PubMed:2105292] [WorldCat.org] [DOI] (P p)

S Aymerich, M Steinmetz
Cloning and preliminary characterization of the sacS locus from Bacillus subtilis which controls the regulation of the exoenzyme levansucrase.
Mol Gen Genet: 1987, 208(1-2);114-20
[PubMed:3039303] [WorldCat.org] [DOI] (P p)

H Shimotsu, D J Henner
Modulation of Bacillus subtilis levansucrase gene expression by sucrose and regulation of the steady-state mRNA level by sacU and sacQ genes.
J Bacteriol: 1986, 168(1);380-8
[PubMed:2428811] [WorldCat.org] [DOI] (P p)

P Gay, D Le Coq, M Steinmetz, E Ferrari, J A Hoch
Cloning structural gene sacB, which codes for exoenzyme levansucrase of Bacillus subtilis: expression of the gene in Escherichia coli.
J Bacteriol: 1983, 153(3);1424-31
[PubMed:6402497] [WorldCat.org] [DOI] (P p)