AckA

• Description: acetate kinase
  
  

Gene name	ackA
Synonyms
Essential	no
Product	acetate kinase
Function	overflow metabolism
Metabolic function and regulation of this protein in SubtiPathways: Central C-metabolism
MW, pI	42 kDa, 5.191
Gene length, protein length	1185 bp, 395 aa
Immediate neighbours	moaB, ytxK
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: BSU29470

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

ATP synthesis, carbon core metabolism

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + acetate = ADP + acetyl phosphate (according to Swiss-Prot)

• Protein family: acetokinase family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cytoplasm (according to Swiss-Prot)

Database entries

• Structure: 2IIR (from Thermotoga maritima, 54% identity, 73% similarity)

• UniProt: P37877

• KEGG entry: [3]

• E.C. number: 2.7.2.1

Expression and regulation

• Operon: ackA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • expression activated by glucose (2.5 fold) (CcpA) PubMed
  • activated during growth in the presence of branched chain amino acids (CodY) PubMed

• Regulatory mechanism:
  • CodY: transcription activation PubMed
  • CcpA: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Linc Sonenshein, Tufts University, Boston, MA, USA Homepage

References

Robert P Shivers, Sean S Dineen, Abraham L Sonenshein
Positive regulation of Bacillus subtilis ackA by CodY and CcpA: establishing a potential hierarchy in carbon flow.
Mol Microbiol: 2006, 62(3);811-22
[PubMed:16995897] [WorldCat.org] [DOI] (P p)

Hans-Matti Blencke, Georg Homuth, Holger Ludwig, Ulrike Mäder, Michael Hecker, Jörg Stülke
Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways.
Metab Eng: 2003, 5(2);133-49
[PubMed:12850135] [WorldCat.org] [DOI] (P p)

T R Moir-Blais, F J Grundy, T M Henkin
Transcriptional activation of the Bacillus subtilis ackA promoter requires sequences upstream of the CcpA binding site.
J Bacteriol: 2001, 183(7);2389-93
[PubMed:11244084] [WorldCat.org] [DOI] (P p)

A J Turinsky, F J Grundy, J H Kim, G H Chambliss, T M Henkin
Transcriptional activation of the Bacillus subtilis ackA gene requires sequences upstream of the promoter.
J Bacteriol: 1998, 180(22);5961-7
[PubMed:9811655] [WorldCat.org] [DOI] (P p)

F J Grundy, D A Waters, S H Allen, T M Henkin
Regulation of the Bacillus subtilis acetate kinase gene by CcpA.
J Bacteriol: 1993, 175(22);7348-55
[PubMed:8226682] [WorldCat.org] [DOI] (P p)