DesK

• Description: two-component sensor kinase, regulation of cold shock expression of des
  
  

Gene name	desK
Synonyms	yocF
Essential	no
Product	two-component sensor kinase
Function	regulation of cold shock expression of des
Gene expression levels in SubtiExpress: desK
Interactions involving this protein in SubtInteract: DesK
Metabolic function and regulation of this protein in SubtiPathways: Fatty acid degradation
MW, pI	42 kDa, 9.428
Gene length, protein length	1110 bp, 370 aa
Immediate neighbours	des, desR
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

lipid metabolism/ other, protein modification, transcription factors and their control, cold stress proteins, membrane proteins, phosphoproteins

The gene

Basic information

• Locus tag: BSU19190

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: autophosphorylation, phosphorylation of DesR
• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:
  • 5 transmembrane helices
  • cytoplasmatic C-terminal trail

• Modification: autophosphorylation on a His residue

• Cofactor(s):

• Effectors of protein activity: unsaturated fatty acids are negative effectors of the system

• Interactions:
  • DesK-DesR

• Localization: membrane (transmembrane segments)

Database entries

• Structure: 3EHF

• UniProt: O34757

• KEGG entry: [3]

• E.C. number:

Additional information

• DesK has the ability to sense changes in membrane fluidity PubMed

Expression and regulation

• Operon: desK-desR PubMed

• Expression browser: desK PubMed

• Sigma factor:

• Regulation:
  • induced by cold shock (12-fold) PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

• Diego de Mendoza, Universidad Nacional de Rosario, Argentine homepage
• Mohamed Marahiel, Marburg University, Germany homepage

References

Reviews

Richard C Stewart
Protein histidine kinases: assembly of active sites and their regulation in signaling pathways.
Curr Opin Microbiol: 2010, 13(2);133-41
[PubMed:20117042] [WorldCat.org] [DOI] (I p)

Pablo S Aguilar, Diego de Mendoza
Control of fatty acid desaturation: a mechanism conserved from bacteria to humans.
Mol Microbiol: 2006, 62(6);1507-14
[PubMed:17087771] [WorldCat.org] [DOI] (P p)