MalK

• Description: two-component sensor kinase, regulation of malate uptake
  
  

Gene name	malK
Synonyms	yufL
Essential	no
Product	two-component sensor kinase
Function	regulation of malate uptake
Gene expression levels in SubtiExpress: malK
Interactions involving this protein in SubtInteract: MalK
Metabolic function and regulation of this protein in SubtiPathways: malK
MW, pI	58 kDa, 6.947
Gene length, protein length	1599 bp, 533 aa
Immediate neighbours	yufK, malR
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

utilization of specific carbon sources, protein modification, transcription factors and their control, membrane proteins, phosphoproteins

The gene

Basic information

• Locus tag: BSU31520

Phenotypes of a mutant

unable to use malate as the single carbon source PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: autophosphorylation, phosphorylation of MalR

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains: two transmembrane segments, C-terminal histidine phosphotransferase domain

• Modification: autophosphorylation on a His residue

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • MalK-MalR

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

Database entries

• Structure:

• UniProt: O05250

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:

• Expression browser: malK PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Stephane Aymerich, Microbiology and Molecular Genetics, INRA Paris-Grignon, France

References

Thierry Doan, Pascale Servant, Shigeo Tojo, Hirotake Yamaguchi, Guillaume Lerondel, Ken-Ichi Yoshida, Yasutaro Fujita, Stéphane Aymerich
The Bacillus subtilis ywkA gene encodes a malic enzyme and its transcription is activated by the YufL/YufM two-component system in response to malate.
Microbiology (Reading): 2003, 149(Pt 9);2331-2343
[PubMed:12949160] [WorldCat.org] [DOI] (P p)

Kousei Tanaka, Kazuo Kobayashi, Naotake Ogasawara
The Bacillus subtilis YufLM two-component system regulates the expression of the malate transporters MaeN (YufR) and YflS, and is essential for utilization of malate in minimal medium.
Microbiology (Reading): 2003, 149(Pt 9);2317-2329
[PubMed:12949159] [WorldCat.org] [DOI] (P p)

C Fabret, V A Feher, J A Hoch
Two-component signal transduction in Bacillus subtilis: how one organism sees its world.
J Bacteriol: 1999, 181(7);1975-83
[PubMed:10094672] [WorldCat.org] [DOI] (P p)