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Merck

A6781

Sigma-Aldrich

Acetate Kinase from Bacillus stearothermophilus

lyophilized powder, 400-1,200 units/mg solid

Synonym(e):

ATP:Acetatphosphotransferase

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About This Item

CAS-Nummer:
EC-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352204
eCl@ss:
32160410

Biologische Quelle

bacterial (Bacillus stearothermophilus)

Qualitätsniveau

Form

lyophilized powder

Spezifische Aktivität

400-1,200 units/mg solid

Lagertemp.

2-8°C

Anwendung

Acetate kinase is used to phosphorylate acetate to acetyl phosphate. Acetate Kinase from Bacillus stearothermophilus has been used to study allosteric activation. [32P]-acetyl phosphate was generated by incubating potassium acetate in the reaction mixture with acetate kinase from Sigma. This [32P]-acetyl phosphate was used to label BldM, BldM D-54N or BldM D-54A loci during the study of the effect of bldM gene on Streptomyces coelicolor development.

Biochem./physiol. Wirkung

Acetate kinase plays an important role in glycolysis. Acetate kinase phosphorylates acetate in the presence of ATP and a divalent cation, which ultimately results in the production of acetyl-CoA. Acetate kinase is also involved in the metabolism of propanoate, pyruvate and taurine. Acetate Kinase from Bacillus stearothermophilus is a thermostable tetramer of identical subunits with molecular weight of 40,000 Da each. The enzyme does not have a -SH group and is composed of 36% β-structure, 21 % α-helix and 43 % unordered structure.
Involved in the metabolism of propanoate, pyruvate and taurine.

Einheitendefinition

One unit will phosphorylate 1.0 μmole of acetate to acetyl phosphate per min at pH 7.2 at 30 °C.

Physikalische Form

Contains Tris-HCl buffer.

Piktogramme

Corrosion

Signalwort

Warning

H-Sätze

P-Sätze

Gefahreneinstufungen

Met. Corr. 1

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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H Nakajima et al.
Journal of biochemistry, 86(5), 1169-1177 (1979-11-01)
Fructose 1,6-bisphosphate (FBP) stimulates the reaction of Bacillus stearothermophilus acetate kinase (AK). FBP changes the reaction curve for ATP from a sigmoidal type to a Michaelis-Menten one. The binding of FBP to AK was studied by an equilibrium dialysis method
F J Grundy et al.
Journal of bacteriology, 175(22), 7348-7355 (1993-11-01)
The Bacillus subtilis gene encoding acetate kinase was identified on the basis of sequence similarity to the Escherichia coli ackA gene and to a second E. coli gene closely related to ackA. Insertional inactivation of this region of the B.
V Molle et al.
Molecular microbiology, 36(6), 1265-1278 (2000-08-10)
whiK was one of five new whi loci identified in a recent screen of NTG-induced whi mutants and was defined by three mutants, R273, R318 and R655. R273 and R318 produce long, tightly coiled aerial hyphae with frequent septation. In
H Nakajima et al.
Journal of biochemistry, 84(1), 193-203 (1978-07-01)
1. Acetate kinase [EC 2.7.2.1] from an thermophile, B. stearothermophilus, was purified and crystalized. 2. This enzyme was shown to be a tetramer of identical subunits which had a molecular weight of about 40,000. Amino acid analysis showed no SH
Smirla Ramos-Montañez et al.
Journal of bacteriology, 192(24), 6390-6400 (2010-10-19)
Acetyl phosphate (AcP) is a small-molecule metabolite that can act as a phosphoryl group donor for response regulators of two-component systems (TCSs). The serious human respiratory pathogen Streptococcus pneumoniae (pneumococcus) synthesizes AcP by the conventional pathway involving phosphotransacetylase and acetate

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