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Número CAS:
UNSPSC Code:
12352204
NACRES:
NA.32
EC Number:
232-559-3
MDL number:
Specific activity:
≥1,000 units/mg protein
Biological source:
Electrophorus electricus
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Permítanos ayudarlebiological source
Electrophorus electricus
type
Type V-S
form
lyophilized powder
specific activity
≥1,000 units/mg protein
mol wt
280 kDa
composition
Protein, ≥45% biuret
pI
~5.3
solubility
Tris buffer: 1 mg/mL (0.02 M Tris buffer, pH 7.5)
storage temp.
−20°C
Quality Level
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General description
Peso molecular: 280 kDa
Punto isoeléctrico: 5,5
Coeficiente de extinción: E1% = 18,0 (280 nm)
La acetilcolinesterasa de Electrophorus electricus es un tetrámero compuesto de 4 subunidades iguales de 70 kDa cada una. Cada subunidad contiene un sitio activo. La enzima es una glucoproteína que contiene hexosaminas.
Punto isoeléctrico: 5,5
Coeficiente de extinción: E1% = 18,0 (280 nm)
La acetilcolinesterasa de Electrophorus electricus es un tetrámero compuesto de 4 subunidades iguales de 70 kDa cada una. Cada subunidad contiene un sitio activo. La enzima es una glucoproteína que contiene hexosaminas.
Application
Acetylcholinesterase from Electrophorus electricus (electric eel) has been used:
- in acetylcholinesterase activity assay
- to study its effects on Xenopus embryonic hippocampal cells
- to study the effect of acetylcholine inhibitors on development and plasticity
Biochem/physiol Actions
La principal enzima degradadora de la acetilcolina in vivo. Convierte la acetilcolina + H2o en colina + ácido acético.
Acetylcholinesterase (AChE) exhibits its activity against acetylcholine in the neuromuscular junctions and synaptic cleft of cholinergic neurons. It participates in the nitric oxide signaling pathway.
Physical form
Lyophilized powder containing Tris buffer salts
Analysis Note
The activity obtained using acetylcholine as substrate is 30-100 times that obtained with butyrylcholine, using acetylcholinesterase from electric eel.
Other Notes
One unit will hydrolyze 1.0 μmole of acetylcholine to choline and acetate per min at pH 8.0 at 37 °C.
Disclaimer
For dilute solutions (<1 mg/ml), add 1 mg/ml BSA to stabilize. Solutions containing at least 1 mg protein/ml in dilute neutral phosphate buffer are stable at least 6 months refrigerated.
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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