A0521
α-Amylase from human saliva
Type IX-A, lyophilized powder, 1,000-3,000 units/mg protein
Synonym(s):
1,4-α-D-Glucan-glucanohydrolase
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About This Item
CAS Number:
UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-565-6
NACRES:
NA.54
MDL number:
Specific activity:
1,000-3,000 units/mg protein
type
Type IX-A
Quality Level
form
lyophilized powder
specific activity
1,000-3,000 units/mg protein
composition
Protein, 5.0-15.0% biuret
greener alternative product characteristics
Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
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UniProt accession no.
greener alternative category
storage temp.
−20°C
Gene Information
human ... AMY1A(276)
General description
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in starch ethanol research. For more information see the article in biofiles.
α-amylase is the main secretory protein constituent of saliva. It contains 496 amino acids and has two isoforms, glycosylated and non-glycosylated. α-amylase gene is located on human chromosome 1p21.1. α-amylase is mainly produced in pancreas and saliva.
Application
α-amylase from human saliva has been used to test α-amylase inhibitors using HPLC (high performance liquid chromatography). It also has been used to study the digestibility of human milk oligosaccharides (HMO).
Biochem/physiol Actions
α-amylase catalyses the hydrolysis of α-1,4 glycosidic linkage in oligosaccharides. It plays a crucial role in the initial digestion of starch, glycogen and polysaccharides. Elevated levels of amylase in serum is linked to acute pancreatitis.
Physical form
Lyophilized powder containing (NH4)2SO4 and sodium citrate
Preparation Note
Chromatographically purified
Other Notes
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
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