MleN

• Description: malate-H+/Na+-lactate antiporter
  
  

Gene name	mleN
Synonyms	yqkI
Essential	no
Product	malate-H+/Na+-lactate antiporter
Function	malate uptake
Gene expression levels in SubtiExpress: mleN
Metabolic function and regulation of this protein in SubtiPathways: mleN
MW, pI	50 kDa, 7.249
Gene length, protein length	1404 bp, 468 aa
Immediate neighbours	mleA, ansB
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

transporters/ other, utilization of specific carbon sources, membrane proteins

This gene is a member of the following regulons

AnsR regulon, CcpA regulon

The gene

Basic information

• Locus tag: BSU23560

Phenotypes of a mutant

abrupt arrest in the mid-logarithmic phase of growth on malate when low concentrations of protonophore were present PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: nhaC Na(+)/H(+) antiporter family (according to Swiss-Prot)

• Paralogous protein(s): NhaC

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:
  • membrane associated PubMed

Database entries

• Structure:

• UniProt: P54571

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:
  • ansA-ansB-mleN-mleA PubMed
  • mleN-mleA PubMed

• Expression browser: mleN PubMed

• Sigma factor:
  • ansA: SigA PubMed
  • mleN: SigA PubMed

• Regulation:
  • ansA: expressed in the presence of asparagine (AnsR) PubMed
  • mleN: repressed by glucose (CcpA) PubMed

• Regulatory mechanism:
  • AnsR: transcription repression PubMed
  • CcpA: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:GP1460 (mleN::spc), available in Stülke lab

• Expression vector:

• lacZ fusion: pGP388 (in pAC7), available in Stülke lab

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Bogumiła C Marciniak, Monika Pabijaniak, Anne de Jong, Robert Dűhring, Gerald Seidel, Wolfgang Hillen, Oscar P Kuipers
High- and low-affinity cre boxes for CcpA binding in Bacillus subtilis revealed by genome-wide analysis.
BMC Genomics: 2012, 13;401
[PubMed:22900538] [WorldCat.org] [DOI] (I e)

Pierre Nicolas, Ulrike Mäder, Etienne Dervyn, Tatiana Rochat, Aurélie Leduc, Nathalie Pigeonneau, Elena Bidnenko, Elodie Marchadier, Mark Hoebeke, Stéphane Aymerich, Dörte Becher, Paola Bisicchia, Eric Botella, Olivier Delumeau, Geoff Doherty, Emma L Denham, Mark J Fogg, Vincent Fromion, Anne Goelzer, Annette Hansen, Elisabeth Härtig, Colin R Harwood, Georg Homuth, Hanne Jarmer, Matthieu Jules, Edda Klipp, Ludovic Le Chat, François Lecointe, Peter Lewis, Wolfram Liebermeister, Anika March, Ruben A T Mars, Priyanka Nannapaneni, David Noone, Susanne Pohl, Bernd Rinn, Frank Rügheimer, Praveen K Sappa, Franck Samson, Marc Schaffer, Benno Schwikowski, Leif Steil, Jörg Stülke, Thomas Wiegert, Kevin M Devine, Anthony J Wilkinson, Jan Maarten van Dijl, Michael Hecker, Uwe Völker, Philippe Bessières, Philippe Noirot
Condition-dependent transcriptome reveals high-level regulatory architecture in Bacillus subtilis.
Science: 2012, 335(6072);1103-6
[PubMed:22383849] [WorldCat.org] [DOI] (I p)

Hannes Hahne, Susanne Wolff, Michael Hecker, Dörte Becher
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics: 2008, 8(19);4123-36
[PubMed:18763711] [WorldCat.org] [DOI] (I p)

Susan H Fisher, Lewis V Wray
Bacillus subtilis 168 contains two differentially regulated genes encoding L-asparaginase.
J Bacteriol: 2002, 184(8);2148-54
[PubMed:11914346] [WorldCat.org] [DOI] (P p)

Y Wei, A A Guffanti, M Ito, T A Krulwich
Bacillus subtilis YqkI is a novel malic/Na+-lactate antiporter that enhances growth on malate at low protonmotive force.
J Biol Chem: 2000, 275(39);30287-92
[PubMed:10903309] [WorldCat.org] [DOI] (P p)

D X Sun, P Setlow
Cloning, nucleotide sequence, and expression of the Bacillus subtilis ans operon, which codes for L-asparaginase and L-aspartase.
J Bacteriol: 1991, 173(12);3831-45
[PubMed:1711029] [WorldCat.org] [DOI] (P p)