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A2230

Sigma-Aldrich

Apyrase from potatoes

High Activity, ATPase ≥600 units/mg protein, lyophilized powder

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Synonym(s):
Adenosine 5′-diphosphatase, Adenosine 5′-triphosphatase
CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

potato

Quality Level

form

lyophilized powder

quality

High Activity

ATPase activity

≥600 units/mg protein

secondary activity

≥50 % of base activity ADPase

composition

protein, ≥30%

foreign activity

Acid Phosphatase ≤2% of base activity

shipped in

wet ice

storage temp.

−20°C

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Application

Apyrase is used to hydrolyze nucleoside triphosphates and diphosphates. Apyrase, from Sigma, has been used in inhibition studies of platelet-aggregation . Product A2230 is a high activity apyrase.
At least two isoenzymes are found in different varieties of S. tuberosum: one with a high ATPase/ADPase ratio (∼10) and another with a low ratio (∼1).
Reaction: ATP → ADP+Pi → AMP+2Pi.

Biochem/physiol Actions

Apyrase is found in all eukaryotes and some prokaryotes. Apyrase, from potato, has a crucial role in regulating growth and development. Apyrase is involved in the inactivation of synaptic ATP as a neurotransmitter following nerve stimulation and in the inhibition of ADP induced platelet aggregation to prevent thrombosis . Divalent metal ions are required for activity and best activity is observed with calcium ion at 5 mM.

Packaging

Sold on the basis of ATPase units.

Unit Definition

One unit will liberate 1.0 μmole of inorganic phosphate from ATP or ADP per min at pH 6.5 at 30 °C.

Physical form

Lyophilized powder containing potassium succinate buffer salts.

Preparation Note

Derived from red potato

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Moritz Schmelzle et al.
Transplantation, 95(1), 63-69 (2012-12-13)
We have previously demonstrated that CD133 and CD39 are expressed by hematopoietic stem cells (HSC), which are mobilized after liver injury and target sites of injury, limit vascular inflammation, and boost hepatic regeneration. Plasma microparticles (MP) expressing CD39 can block
Xing Liu et al.
Plant physiology, 160(4), 1985-1995 (2012-10-17)
Recent evidence indicates that extracellular nucleotides regulate plant growth. Exogenous ATP has been shown to block auxin transport and gravitropic growth in primary roots of Arabidopsis (Arabidopsis thaliana). Cells limit the concentration of extracellular ATP in part through the activity
Thomas J Bushart et al.
American journal of botany, 100(1), 161-174 (2012-10-11)
Gravity regulates the magnitude and direction of a trans-cell calcium current in germinating spores of Ceratopteris richardii. Blocking this current with nifedipine blocks the spore's downward polarity alignment, a polarization that is fixed by gravity ∼10 h after light induces
François Martin et al.
Trends in molecular medicine, 18(12), 742-749 (2012-10-23)
The immune system has important roles in limiting the spread of cancer and shaping the tumor microenvironment. Although the contributions of T helper 17 (Th17) cells (a subtype of CD4(+) T lymphocytes) to autoimmunity and allergy response are well known
Joanne S J Chia et al.
Journal of biomedicine & biotechnology, 2012, 320495-320495 (2012-11-03)
Diabetes mellitus encompasses two distinct disease processes: autoimmune Type 1 (T1D) and nonimmune Type 2 (T2D) diabetes. Despite the disparate aetiologies, the disease phenotype of hyperglycemia and the associated complications are similar. In this paper, we discuss the role of

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