A6132
Apyrase from potatoes
ATPase ≥3.0 units/mg protein, lyophilized powder
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:
Biological source:
potato
biological source
potato
Quality Level
type
Grade I
form
lyophilized powder
ATPase activity
≥3.0 units/mg protein
composition
Protein, 30-60%
storage temp.
−20°C
Application
Apyrase is used to hydrolyze nucleoside triphosphates and diphosphates. Apyrase, from Sigma, has been used in inhibition studies of platelet-aggregation .
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.
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.
Physical form
Partially purified, lyophilized powder containing potassium succinate
Other Notes
Mixture of high and low ratio isoenzymes.
One unit will liberate 1.0 micromole of inorganic phosphorus per minute at pH 6.5 at 30 °C
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signalword
Danger
hcodes
pcodes
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)
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QC Methods
Instructions
I Shirakawa et al.
The Journal of experimental biology, 198(Pt 8), 1809-1815 (1995-08-01)
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