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Merck
CN

A7646

Apyrase from potatoes

ATPase ≥60 units/mg protein, lyophilized powder (partially purified)

Synonym(s):

Adenosine 5′-diphosphatase, Adenosine 5′-triphosphatase

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About This Item

CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-569-8
MDL number:
EC Number:
Biological source:
potato
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biological source

potato

Quality Level

type

Grade III

form

lyophilized powder (partially purified)

ATPase activity

≥60 units/mg protein

mol wt

~49 kDa by gel filtration

composition

Protein, 30-60%

solubility

H2O: soluble 10 mg/mL, slightly hazy

application(s)

diagnostic assay manufacturing

foreign activity

Acid Phosphatase ≤5% of base activity

storage temp.

−20°C

Application

Apyrase is used to hydrolyze nucleoside triphosphates and diphosphates. For hydrolysis of organic di and triphosphates, the optimal pH is 6, and for inorganic substrates, the optimal pH is 5.1 Apyrase, from Sigma, has been used in inhibition studies of platelet-aggregation. The enzyme has been used to assess the possibility of ATP involvement in intestinal lamina propria Th17 cell differentiation.
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. The molecular weight of the protein is found to be approximately 45 kDa.

Packaging

Sold on the basis of ATPase units

Analysis Note

Contains ≤ 5% acid phosphatase.

Other Notes

Mixture of high and low ratio isoenzymes.
One unit will liberate 1.0 μmole of inorganic phosphate from ATP or ADP per min at pH 6.5 at 30 °C.


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pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

低风险生物材料

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Properties of Two Apyrases from Solanum tuberosum
Kettlun, A. et al.
Phytochemistry, 21(3), 551-558 (1982)
Mathieu F Chevalier et al.
Blood, 121(1), 29-37 (2012-10-09)
Natural regulatory T cells (Tregs) participate in responses to various chronic infections including HIV. HIV infection is associated with a progressive CD4 lymphopenia and defective HIV-specific CD8 responses known to play a key role in the control of viral replication.
Mardi C Boer et al.
European journal of immunology, 43(7), 1925-1932 (2013-04-23)
Regulatory T (Treg) cells can balance normal tissue homeostasis by limiting inflammatory tissue damage, e.g. during pathogen infection, but on the other hand can also limit protective immunity induced during natural infection or following vaccination. Because most studies have focused



Global Trade Item Number

SKUGTIN
A7646-1KU04061833385968
A7646-2KU04061833385982
A7646-500UN04061832754666
A7646-100UN04061832754642
A7646-200UN04061832754659
A7646-5KU04061833385999