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Documenti fondamentali

C1682

Sigma-Aldrich

Acetylcholinesterase human

recombinant, expressed in HEK 293 cells, lyophilized powder, ≥1,000 units/mg protein (Lowry)

Sinonimo/i:

AChE, Acetylcholine acetylhydrolase

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero CE:
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.32

Ricombinante

expressed in HEK 293 cells

Livello qualitativo

Stato

lyophilized powder

Attività specifica

≥1,000 units/mg protein (Lowry)

PM

64.6 kDa

N° accesso UniProt

Temperatura di conservazione

−20°C

Informazioni sul gene

human ... ACHE(43)

Descrizione generale

Acetylcholinesterase (AChE) is a serine hydrolase, which belongs to the carboxyl esterase family of enzymes. AChE is localised at neuromuscular junctions and cholinergic brain synapses.

Applicazioni

Acetylcholinesterase human has been used:
  • as a standard protein to measure protein levels acetylcholinesterase AChE-R and AChE-S
  • to stimulate human fibroblasts
  • to study its in vitro catalytic activity and to determine the effects of metals, H2O2 and OH radicals on the activity

Azioni biochim/fisiol

Acetylcholinesterase (AChE) is regarded as a biomarker in neurotoxicity. It is a modulator of nitric oxide signal transduction pathway and marker of membrane integrity and aging. AChE, hydrolyzes choline esters. It terminates the impulse transmission at cholinergic synapses. AChE does this by rapid hydrolysis of the neurotransmitter acetylcholine (ACh) to acetate and choline. AChE inhibitors prevent the cholinesterase enzyme from breaking down ACh and increases the level and duration of the neurotransmitter action.
Major degradative enzyme for acetylcholine in vivo. Converts acetylcholine + H2O to choline + acetic acid.

Definizione di unità

One unit will hydrolyze 1.0 μmole of acetylthiocholine to thiocholine and acetate per minute at pH 8.0 at 37 °C.

Stato fisico

This product is supplied as a lyophilized powder. Lyophilized from 0.22 μm filtered solution in 50mM phosphate buffer pH8.

Risultati analitici

The activity obtained using acetylcholine as substrate is 30-100 times that obtained with butyrylcholine, using acetylcholinesterase from electric eel.

Inibitore

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


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