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P2783

Sigma-Aldrich

Phosphotransacetylase from Bacillus stearothermophilus

lyophilized powder, ≥3,000 units/mg protein (biuret)

Synonym(s):

Acetyl-CoA:orthophosphate acetyltransferase, Phosphate acetyltransferase

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About This Item

CAS Number:
9029-91-8
Enzyme Commission number:
2.3.1.8 (BRENDA, IUBMB)
EC Number:
232-855-2
MDL number:
MFCD00131907
UNSPSC Code:
12352204
NACRES:
NA.54

form

lyophilized powder

specific activity

≥3,000 units/mg protein (biuret)

composition

Protein, ≥20%

shipped in

wet ice

storage temp.

−20°C

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Application

Phosphotransacetylase, from Bacillus stearothermophilus, is used to convert CoA to acetyl CoA. Phosphotransacetylase (pta) is used to study transport systems for acetate. It is used to study metabolic pathways in various bacterium.

Biochem/physiol Actions

Phosphotransacetylase converts CoA to acetyl CoA.

Unit Definition

One unit will convert 1.0 μmole of CoA to acetyl CoA per min at pH 7.5 at 30 °C using acetyl phosphate as substrate.

Physical form

Lyophilized powder containing potassium phosphate

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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G D Sprott et al.
Applied and environmental microbiology, 59(4), 1092-1098 (1993-04-01)
Eleven strains of methanogenic bacteria were divided into two groups on the basis of the directionality (oxidative or reductive) of their citric acid pathways. These pathways were readily identified for most methanogens from the patterns of carbon atom labeling in
Mutants of Bacillus stearothermophilus defective in the uptake and metabolism of acetate
Philip R. Mallinder and Anne Moir
Microbiology, 137, 779-785 (1991)
Jing Huang et al.
Wei sheng wu xue bao = Acta microbiologica Sinica, 51(4), 480-487 (2011-07-30)
To study the effects of gene pta disruption on biosynthesis of L-tryptophan. The pta gene of the L-tryptophan producing strain E. coli TRTH was disrupted by Red recombination technology and a pta mutant E. coli TRTHdeltapta was constructed. Fed-batch fermentation
Sara Castaño-Cerezo et al.
Microbial cell factories, 8, 54-54 (2009-10-27)
Acetate metabolism in Escherichia coli plays an important role in the control of the central metabolism and in bioprocess performance. The main problems related to the use of E. coli as cellular factory are i) the deficient utilization of carbon
Zoltán Gregus et al.
Toxicological sciences : an official journal of the Society of Toxicology, 110(2), 282-292 (2009-05-30)
Enzymes catalyzing the phosphorolytic cleavage of their substrates can reduce arsenate (AsV) to the more toxic arsenite (AsIII) via the arsenolytic substrate cleavage in presence of a reductant, as glutathione or dithiotreitol (DTT). We have shown this for purine nucleoside
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Articles

Coenzyme A

Enzyme Reagent Coenzyme A (CoA, CoASH or HSCoA) is the key cofactor in first step of the TCA cycle, responsible for transferring the acetyl group from pyruvate oxidation to oxaloacetate yielding citrate. Available through Sigma-Aldrich online.

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