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A2230

Sigma-Aldrich

Apirasi

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

Sinonimo/i:

Adenosina 5′-difosfatasi, Adenosina 5′-trifosfatasi

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

potato

Forma fisica

lyophilized powder

Qualità

High Activity

ATPase activity

≥600 units/mg protein

secondary activity

≥50 % of base activity ADPase

Composizione

protein, ≥30%

Attività estranea

Acid Phosphatase ≤2% of base activity

Condizioni di spedizione

wet ice

Temperatura di conservazione

−20°C

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Applicazioni

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.
In diverse varietà di S. tuberosum si trovano almeno due isoenzimi: uno con un rapporto ATPasi/ADPasi elevato (∼10) e un altro con un rapporto basso (∼1).
Reazione: ATP → ADP+Pi → AMP+2Pi.

Azioni biochim/fisiol

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.

Confezionamento

Sold on the basis of ATPase units.

Definizione di unità

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

Stato fisico

Lyophilized powder containing potassium succinate buffer salts.

Nota sulla preparazione

Derived from red potato

Pittogrammi

Health hazard

Avvertenze

Danger

Indicazioni di pericolo

Consigli di prudenza

Classi di pericolo

Resp. Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


Certificati d'analisi (COA)

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Tsan-Yu Chiu et al.
Plant & cell physiology, 53(11), 1913-1925 (2012-10-05)
Nucleoside triphosphate diphosphohydrolases (NTPDases; apyrases) (EC 3.6.1.5) hydrolyze di- and triphosphate nucleotides, but not monophosphate nucleotides. They are categorized as E-type ATPases, have a broad divalent cation (Mg(2+), Ca(2+)) requirement for activation and are insensitive to inhibitors of F-type, P-type
Gabriane Nascimento Porcino et al.
Experimental parasitology, 132(2), 293-299 (2012-08-28)
Nucleoside triphosphate diphosphohydrolase (NTPDase) activity was recently characterized in Leishmania (Viannia) braziliensis promastigotes (Lb), and an antigenic conserved domain (r82-121) from the specific NTPDase 1 isoform was identified. In this work, mouse polyclonal antibodies produced against two synthetic peptides derived
Maja Milošević et al.
Molecular and cellular biochemistry, 371(1-2), 199-208 (2012-09-08)
Extracellular nucleotides affect female reproductive functions, fertilization, and pregnancy. The aim of this study was to investigate biochemical characteristics of ATP and ADP hydrolysis and identify E-NTPDases in myometrial cell membranes from Wistar albino rats. The apparent K (m) values
Yong Zhang et al.
Transplant immunology, 27(4), 175-178 (2012-08-14)
To study the effects and mechanisms of the imbalance in B cell-expressed nucleoside triphosphate diphosphohydrolase 1 (NTPDase 1)-induced ADP degradation on graft injury during acute antibody-mediated rejection (AMR). The acute AMR animal model was established in male NTPDase 1-wild-type Balb/c
Ana Carolina Ribeiro Gomes Maia et al.
Parasitology international, 62(1), 44-52 (2012-09-22)
We identified a shared B domain within nucleoside triphosphate diphosphohydrolases (NTPDases) of plants and parasites. Now, an NTPDase activity not affected by inhibitors of adenylate kinase and ATPases was detected in Leishmania infantum promastigotes. By non-denaturing gel electrophoresis of detergent-homogenized

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