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A6535

Sigma-Aldrich

Apirasa from potatoes

ATPase ≥200 units/mg protein, lyophilized powder

Sinónimos:

Adenosina 5′-difosfatasa, Adenosina 5′-trifosfatasa

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About This Item

Número de CAS:
9000-95-7
Comisión internacional de enzimas:
3.6.1.5 (BRENDA, IUBMB)
EC Number:
232-569-8
MDL number:
MFCD00130542
UNSPSC Code:
12352204
NACRES:
NA.54

type

Grade VII

Quality Level

300

form

lyophilized powder

ATPase activity

≥200 units/mg protein

secondary activity

≥50 % of base activity ADPase

composition

Protein, 25-60%

solubility

H2O: soluble 1.0 mg/mL

application(s)

diagnostic assay manufacturing

foreign activity

Acid Phosphatase ≤2% of base activity

storage temp.

−20°C

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Application

Se encuentran al menos dos isoenzimas en diferentes variedades de S. tuberosum: una con una elevada relación ATPasa/ADPasa (∼10) y otra con una relación baja (∼1).
Reacción: ATP → ADP+Pi → AMP+2Pi.
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 .

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.

Other Notes

This grade has a low ATPase/ADPase ratio.

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

Partially purified, lyophilized powder containing potassium succinate buffer salts.

Preparation Note

Derived from red potato

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000297721
0000297722
0000297723
0000279648
0000289560

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Properties of Two Apyrases from Solanum tuberosum
Kettlun, A. et al.
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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.
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Nodulation in legumes requires the recognition of rhizobially made Nod factors. Genetic studies have revealed that the perception of Nod factors involves LysM domain receptor-like kinases, while biochemical approaches have identified LECTIN NUCLEOTIDE PHOSPHOHYDROLASE (LNP) as a Nod factor-binding protein.
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